SINGLE STAGE SNOWTHROWER SERVICE MANUAL Table Of Contents – Page 1 of 2 ENGINE APPLICATIONS GENERAL INFORMATION GENERAL SAFETY INSTRUCTIONS IDENTIFICATION AND ORDERING MIXING INSTRUCTIONS FOR GASOLINE AND OIL PROPER FUEL AND OIL OFF SEASON STORAGE CONTROLS/LOCATION AND OPERATION PRIMER CHOKE ON/OFF IGNITION SWITCH CHECKING THE IGNITION SWITCH VANE CONTROL - SNOW PUP - SNOWMASTER S-200 - S-620 CHUTE CONTROL CHUTE ROTATION AND DETENT SYSTEMS ENGINE REMOVAL AND INSTALLATION 1965 - 1985 MODELS, ENGINE REMOVAL 1
SINGLE STAGE SNOWTHROWER SERVICE MANUAL Table Of Contents – Page 2 of 2 MAINTENANCE WHEEL BRACKET REPLACEMENT (1975 AND OLDER MODELS) SCRAPER REPLACEMENT PADDLE REPLACEMENT - STRAIGHT PADDLE REPLACING ROTOR BLADES (CURVED ROTOR MODELS) VANE REPLACEMENT VANE CONTROL SERVICING ON 14” AND 21” SNOWTHROWERS FROM 1965-1967 VANE CONTROL SERVICING VANE CONTROL SERVICING: ALL 16” POWERLITE AND 20” SINGLE STAGE SNOWTHROWERS TROUBLESHOOTING TROUBLESHOOTING TIPS - FAILURE TO START OLD FUEL SPARK PLUGS THE ENGINE RUNS B
TORO ® Single Stage Snowthrower Service Manual
PREFACE ABOUT THIS MANUAL This manual was written expressly for the Toro brand single stage snowthrowers. The Toro Company has made every effort to make the information in this manual complete and correct. This manual was written with the assumption that the reader has basic mechanical and electrical knowledge and skills. The book contains material covering snowthrowers built by The Toro Company from 1965 through 2000, and will be specified for use on machines built after 2000 that are similar in design.
TABLE OF CONTENTS This book covers a variety of models built over several years. Look in the following Table Of Contents for the portion of the machine that you wish to work on. Within that section we will cover each of the systems used. ENGINE APPLICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1 GENERAL INFORMATION General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS DRIVE SYSTEMS Drive System (Belt) Snowmaster - S-200, S-620 . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1 Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14 Belt/Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 15 Adjusting Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS MAINTENANCE Wheel Bracket Replacement (1975 And Older Models) . . . . . . . . . . . . . . . . . . . . . . 7 - 1 Scraper Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1 Paddle Replacement - Straight Paddle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 2 Replacing Rotor Blades (Curved Rotor Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4 Vane Replacement . . . . . . . . . . . .
TABLE OF CONTENTS Primer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 6 Choke Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 6 Testing The Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 6 Engine Operating Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS ENGINES Several different engines have been used on the single stage snowthrower product line. Refer to the chart beginning on page 1 - 1 to determine the engine manufacturer. Engine manuals may be obtained from the following sources. Tecumseh Products Co. 900 North St.
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ENGINE APPLICATIONS Model # Model Name Width Years of Mfg Eng Mfg Eng Model Mix Ratio Max RPM Spark Plug * Gap (in.) 31405 Snow Pup 14” 1976-1977 Tec. AH520 32:1 4100-4500 Champion RJ18YC .035 31410 Snow Pup 14" 1966-1967 Tec. AH520 16:1 4300-4700 Champion RJ18YC .035 31411 Snow Pup 14" 1968-1971 Tec. AH520 16:1 4100-4500 Champion RJ18YC .035 31412 Snow Pup 14" 1972-1975 Tec. AH520 16:1 4300-4700 Champion RJ18YC .035 31500 Snow Husky 21" 1966-1967 Tec.
ENGINE APPLICATIONS Model # Model Name Width Years of Mfg Eng Mfg Eng Model Mix Ratio Max RPM Spark Plug * Gap (in.) 38173 Powerlite 16" 2000 Tec. HSK600 50:1 4300-4700 Champion RCJ8Y .030 38175 Powerlite 16" 1991-1999 Tec. HSK600 50:1 4300-4700 Champion RCJ8Y .030 38176 Powerlite 16" 1992-1998 Tec. HSK600 50:1 4300-4700 Champion RCJ8Y .030 38177 Powerlite 16" 1999 Tec. HSK600 50:1 4300-4700 Champion RCJ8Y .030 38178 Powerlite 16" 1999 Tec.
ENGINE APPLICATIONS Model # Model Name Width Years of Mfg Eng Mfg Eng Model Mix Ratio Max RPM Spark Plug * Gap (in.) 38413 CCR2450 20" 2000 Toro R tek 50:1 3550-4050 NGK BPMR4A .032 38414 CCR2400 20" 1998-1999 Toro R tek 50:1 3450-3950 NGK BPMR4A .032 38415 CCR2400 20" 1997 Tec. HSK850 50:1 3550-3850 Champion RCJ8Y .030 38416 CCR2400 20" 1997 Tec. HSK850 50:1 3550-3850 Champion RCJ8Y .030 38417 CCR2400 20" 1998 Toro R tek 50:1 3450-3950 NGK BPMR4A .
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GENERAL INFORMATION GENERAL SAFETY INSTRUCTIONS This safety alert symbol means CAUTION - PERSONAL SAFETY INSTRUCTION. Read the instruction because it has to do with safety. Failure to comply with the instruction may result in personal injury. Personal Safety • Never allow children to operate the snowthrower. Adults should operate the snowthrower only after reading the owner’s manual and receiving proper instructions. • Keep everyone, especially children and pets, away from the area of operation.
GENERAL INFORMATION Storage During Snow Season • When storing the snowthrower, REMOVE THE KEY FROM SWITCH. Store the key in a memorable place. • Never leave gasoline in a snowthrower fuel tank when snowthrower is stored in a building where a flame or spark may be present. Allow the engine to cool before storing. Never store a snowthrower in the house or basement because of potential fire hazard.
GENERAL INFORMATION ORDERING: Toro parts are available through your local Authorized Toro Service Dealer. MIXING INSTRUCTIONS FOR GASOLINE AND OIL NOTE: To find the nearest Authorized Toro Service Dealer in your area, please consult your yellow pages under “lawn mowers” or “snowthrowers”. Safety Instructions Parts: To order replacement parts from an authorized TORO Dealer, the following information is needed: 1. Model and serial number of the snowthrower. 2.
GENERAL INFORMATION 3. If your unit requires a gasoline/oil ratio of 32:1, pour 1/2 cup or 4 ounces of TORO 2-cycle engine oil into the gasoline container (Figure 5). Do not store the oil near an open flame or in an extremely warm environment as the oil is flammable. 4. If your snowthrower requires a 50:1 gas to oil ratio; pour 2.6 oz. of Toro 2-cycle oil into the gasoline container (Figure 6). 5. Shake the gasoline container vigorously so oil mixes with gasoline.
GENERAL INFORMATION 50:1 RATIO MIX OIL (1/3 CUP OR 2.6 OZ.) (0.079 l) GAS (1 U.S. QUART (0.946 l) ADD MORE GAS (3 U.S. QUARTS) (2.84 l) SHAKE CAN GASOLINE CONTAINER GASOLINE CONTAINER Figure 6 1. Mix the gasoline and oil in the correct ratio for your unit. Refer to “MIXING INSTRUCTIONS FOR GASOLINE AND OIL” on page 2 - 3. 2. Clean the area around snowthrower fuel tank cap so foreign matter does not get into the fuel tank. Remove the cap from the fuel tank. 3.
GENERAL INFORMATION 1. Use a pump type siphon to remove as much fuel from the tank as possible. Dispose of fuel properly. One method of disposing of left over fuel is to put it in the car. If you have a half tank of fuel in the car, a gallon or two of fuel mix will blend with the gas and have no affect. If the fuel is extremely old and does not smell like gasoline, we would not recommend its use in any engine. Contact your local authorities for disposal instructions. 2.
CONTROLS/LOCATION AND OPERATION The primer and choke controls have been located in different areas throughout the years. Figure 7, Figure 8, Figure 9, and show the various locations. B A Figure 9 (A) Choke Figure 7 0217-004 B 1854-28 (B) Primer The ignition switch has been located in the same position on the control panel since introduction of the 1975 Snowmaster (Figure 8). Prior to 1975, the unit’s engine was stopped by depressing the spark plug kill lever.
CONTROLS/LOCATION AND OPERATION PRIMER The primer, used on most single stage snowthrowers, is designed to pump a small amount of fuel from the carburetor into the carburetor throat. This extra fuel mixture allows the engine to be started in cold temperatures. The primer is operated by depressing the primer bulb with a finger, ensuring the finger covers the vent hole in the bulb. Depress the primer button, release, wait about 3 seconds, then depress the primer again. Repeat as often as needed.
CONTROLS/LOCATION AND OPERATION CHOKE The carburetor choke control, or shutter, meters the amount of air passing into the engine. When starting the engine, the carburetor choke should be closed (Figure 13). If your snowthrower has either the choke cable, choke rod, or handle design to close the choke shutter, the cable, rod, or handle should be pulled out.
CONTROLS/LOCATION AND OPERATION CHECKING THE IGNITION SWITCH CONTINUITY CHART FOR SWITCHING The tools used to check for defective switches are a continuity tester/light or an ohmmeter (Figure 15). A continuity tester or ohmmeter, as the names imply, are used to test for a completed current flow in an electrical circuit. To test the ignition switch on your snowthrower: Figure 15 Continuity Light light off light on Remove the upper shroud. 2.
CONTROLS/LOCATION AND OPERATION 3. Slide the terminal connector back onto the ignition switch terminals (Figure 16). 4. Replace the upper shroud. Note: Toro single stage snowthrowers produced between 1965 and 1975 did not utilize an ignition switch. These units were equipped with a translucent boot in the upper shroud. By depressing the boot on these models, the engine could be stopped (Figure 10). A small metal lever, which was attached to the frame, would ground the spark to the frame when depressed.
CONTROLS/LOCATION AND OPERATION The curved rotor is necessary to draw the snow towards the center, where the chute is (Figure 22). The upper part of the rotor housing is an inverted cone, which has two functions. This directs the snow towards the chute, and also serves to resist plugging. CHUTE ROTATION AND DETENT SYSTEMS Powerlite Chute System On Powerlite models, the chute attaches to a handle, which also is the base and contains detents which resemble gear teeth.
CONTROLS/LOCATION AND OPERATION To keep the chute in the desired position, a spring loaded chute detent is located in the rear of the housing (Figure 25). As the chute is rotated manually, a ratchet sound indicates that the detent is working properly. As the handle, housing, and chute retainer are all made of plastic, no lubrication is necessary Figure 26 Figure 25 1854-40 1854-12 Remove the 2 screws holding the nameplate to the chassis.
CONTROLS/LOCATION AND OPERATION Reassembly is the reverse of disassembly. Note: The rounded heads of the carriage bolts must be on the inside of the chute. The smooth head prevents snow from building up on the bolt head. 20” CCR Crank System The third system, used on CCR2000 as well as the 2400, 2500 and 3600 series uses a crank that is mounted to the handle. Rotating the handle turns a set of gears that engage a ring gear that the chute is mounted to.
CONTROLS/LOCATION AND OPERATION 3. To remove the upper shroud, remove the two bolts and locknuts in the front corners of the shroud (Figure 31). 6. The gears are held in the bracket by a shaft with a push nut on either end (Figure 32). To remove the shaft, remove one of the push nuts and pull the shaft out. A H A B G F E C D Figure 31 Figure 32 (A) (B) (C) (D) Nameplate Control Panel Lower Shroud Push Nut (E) (F) (G) (H) Chute Seal Retainer Chute Seal Upper Shroud Gas Cap 4.
CONTROLS/LOCATION AND OPERATION Chute Seal This system has a seal incorporated into the upper shroud (Figure 33). This is to prevent melted snow from seeping into the engine compartment. To replace the seal, remove the upper shroud in the same manner as accessing the chute gears. Turn the shroud over and remove the 8 pushnuts. (Cutting them with a side cutter is the best way to remove them.) Slide the seal and retainer off the mounting pegs and replace the seal and retainer.
ENGINE REMOVAL AND INSTALLATION 1965 - 1985 MODELS, ENGINE REMOVAL Certain engine servicing procedures will require removing the engine from your snowthrower. The following procedures are required for engine removal: Chain Drive Units: A. Remove the left side plate, chain guard and chain. To remove the chain, refer to "Chain Replacement" on page 5 - 25. Consult step 2. B. Remove the crankshaft sprocket. Refer to "Crankshaft Sprocket Replacement (all models)" on page 5 - 21. Consult step 3. 1.
ENGINE REMOVAL AND INSTALLATION 11. If your 20” Snowthrower is equipped with an electric starter, remove the bolts retaining the electric starter to the engine mounting bracket (Figure 36). Also, remove the bolt and cable clamp retaining the wire harness to the engine. Finally, remove the motor tie down strap.
ENGINE REMOVAL AND INSTALLATION 1965 - 1985 MODELS, ENGINE INSTALLATION After performing the necessary servicing procedures to your engine, install the engine back into the unit. Proceed with the following: 1. Slide the engine into the engine mounting bracket. Loosely install the four mounting nuts to retain the engine to the mounting bracket (Figure 40). Figure 41 Figure 40 2. 3. Slide the fuel line or hose onto the carburetor fitting. Compress the fuel line clamp and slide into position. 4.
ENGINE REMOVAL AND INSTALLATION 8. Pull the recoil starter rope through the hole in the control panel (Figure 42). Next, slide the rope onto and through the starter handle and make a small knot. Slide the starter rope back into the starter handle. Remove the knot in the starter rope at the starter housing and allow the starter rope to retract into the starter. Figure 42 9. 10. If your snowthrower is equipped with an electric starter, install the starter to the engine mounting bracket (Figure 44).
ENGINE REMOVAL AND INSTALLATION B. Install the crankshaft pulley. Refer to "Crankshaft Pulley Replacement" on page 5 3. 3. Remove the belt from the engine pulley and remove the engine pulley and key if so equipped (Figure 47). C. Connect the spark plug lead wire. D. Install the belt and side plate. Refer to "Replacing Drive Belt" on page 5 - 1. Complete Steps 5 through 7. Chain Drive Units: A. Install the crankshaft sprocket.
ENGINE REMOVAL AND INSTALLATION 5. The upper shroud/fuel tank is retained by one screw in each corner. On electric start models only, remove the three screws surrounding the starter button (Figure 52). These screws hold the switch box to the upper shroud. Unless they are removed the wire harness between the switch box and the starter motor will prevent complete shroud removal (Figure 49).
ENGINE REMOVAL AND INSTALLATION Alternate Method 1. Remove the fuel with a pump type siphon. Tilt the machine forward so it rests on the rotor housing and the chute. 2. Remove the belt cover, belt, and engine pulley. 3. Remove the two screws holding the control panel and let the control panel hang from the starter rope. 4. Remove the two hex head capscrews holding the lower shroud to the handles. 5.
ENGINE REMOVAL AND INSTALLATION 5. On most models, the fuel tank is mounted at 3 points with capscrews and locknuts on two of the points, the third point is a pin on the chassis that goes through a rubber grommet (Figure 53) on the bottom of the tank. CCR1000’s use a tongue and groove system and one (Figure 54) mounting screw. Remove them and lift the tank out. Now disconnect the fuel line. Caution: If the tank had fuel in it, there will be some remaining in the fuel line.
ENGINE REMOVAL AND INSTALLATION 1 2 A 4 Figure 55 3 1854-02 Figure 56 1854-03 (A) Set Screws 10. Remove the screw securing the choke knob to the choke rod. Note how the choke rod is connected to the engine, then remove the choke rod. 11. Remove the 4 bolts or locknuts (depending on the model) around the crankshaft (Figure 56). These are the last fasteners retaining the engine. Lift the engine out of the chassis.
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DRIVE SYSTEMS DRIVE SYSTEM (BELT) SNOWMASTER S-200, S-620 The Toro belt drive system, which is utilized on all 20” Snowmasters and S-200’s, consists of a crankshaft pulley, a rotor pulley, a spring loaded idler and a multigrooved V-belt (Figure 57.). The power from the engine is transferred from the crankshaft pulley to a rotor pulley by the multigrooved V-belt. A constant tension is supplied to the V-belt from the spring loaded idler. Figure 57 3.
DRIVE SYSTEMS 5. When installing the replacement belt, loop the belt around the engine pulley and under the idler pulley. Now start the belt around the impeller pulley (Figure 60). 7. Finally, install the drive cover with the washerfaced cap screw, four screws, and locknuts. Belt Alignment Whenever a pulley is removed, or if belt jumping is experienced, belt alignment will be necessary. To align the crankshaft pulley and rotor pulley perform the following procedures. They are: Figure 60 6. 1.
DRIVE SYSTEMS 3. Align the crankshaft pulley and rotor pulley with a straight edge (ie. ruler, piece of wood, etc...) (Figure 63). Figure 63 Crankshaft Pulley Replacement 1. Refer to "Replacing Drive Belt" on page 5 - 1. Complete steps 1 through 4. 2. Loosen the two allen head screws on crankshaft pulley. Slide pulley off crankshaft (Figure 62). 3. Slide replacement crankshaft pulley on the crankshaft.
DRIVE SYSTEMS Idler Spring Replacement 4. 1. Refer to "Replacing Drive Belt" on page 5 - 1. Complete steps 1 through 4. 2. Using a needle nose pliers, remove the idler spring from the idler arm then from the left side plate (Figure 65). Pay close attention to the shape of the ends of the idler spring. The ends have different shapes; the more closed end of the spring rides in a small hole in the idler arm, while the more open end is fastened to a small hole in the left side plate.
DRIVE SYSTEMS 3. Using a 5/8” open end wrench and a 1/2” socket wrench, remove the shoulder bolt, washers, and nut, retaining the idler assembly to the left side plate (Figure 67). At this point, inspect the entire assembly. If the idler arm is misformed, replace. Also, inspect the washers for excessive wear. Replace if necessary. 5. Reassemble the idler assembly and attach it to the left side plate with shoulder bolt, washers, and nut (Figure 69). Tighten the nut firmly. Figure 69 Figure 67 4.
DRIVE SYSTEMS Rotor Pulley Replacement 3. 1. Refer to "Replacing Drive Belt" on page 5 - 1. Complete steps 1 through 4. 2. Place a block of wood, (2” x 4”) as a wedge between the rotor assembly and the housing (Figure 70). With the use of a socket and a large breaker bar turn the rotor pulley clockwise (Note: The pulley is a left hand thread.) Remove the rotor pulley. Before replacing with a new rotor pulley, be certain to place the thin washer over the shaft first (Figure 71).
DRIVE SYSTEMS End Cap/Shaft And Bearing Replacement For 1980 S-200’s 1. Refer to "Replacing Drive Belt" on page 5 - 1. Complete steps 1 through 4. 2. Refer to "Rotor Pulley Replacement" on page 5 6. Complete step 2 only. 3. Remove all screws retaining the rotor paddles to the rotor halves. Also, remove the four selftapping rotor screws, which locate the rotor halves in the correct position around the end cap assemblies (Figure 73). (Note: Earlier models may not have rotor location screws.
DRIVE SYSTEMS B. Slide the end cap/shaft assembly from the bearing (Figure 75). If, upon your inspection, noticeable wobble exists between the end cap/ shaft assembly and the bearing, both should be replaced. 7. Assemble both paddles to the rotor halves. Torque each screw 15 in·lbs (Figure 76). Lastly, tighten the four self-tapping rotor location screws. (CAUTION: Do not overtorque screws, the threads may be damaged.) Figure 76 Figure 75 8. Replace rotor pulley.
DRIVE SYSTEMS R.H. (Right Hand) End Cap/Shaft Replacement On 20” Snowthrowers Produced From 1975 To 1979 1. 2. Refer to "End Cap/Shaft And Bearing Replacement For 1980 S-200’s" on page 5 - 7. Perform steps 1 through 3. Slide the end plate assembly off the shaft (Figure 74). Remove both screws retaining the rotor shaft to the R. H. side plate (Figure 77). If the bushing in the end plate is “wallowed” (oval shaped), replace the bushing, end cap, and rotor shaft. L. H.
DRIVE SYSTEMS 5. Remove screws securing rotor bearing to left sideplate and remove end cap (Figure 79). Mount the bearing flange and bearing to the sideplate with (3) machine screws and locknuts (Figure 81). Slide the end cap shaft through bearing flange, bearing, and sideplate (Figure 81). Install the spacer, washer, and rotor pulley on the end cap shaft. Tighten the rotor pulley by turning nut counterclockwise finger tight (Left hand thread) (Figure 81.). Figure 79 6.
DRIVE SYSTEMS BELT DRIVE SYSTEM TROUBLESHOOTING CHART CAUSES CORRECTIVE ACTION ENGINE RUNS BUT PADDLES DO NOT TURN Belt jumps off the drive pulleys. Inspect the belt for damage. Replace belt if needed. Check belt alignment. Idler spring has broken or unhooked. If unhooked from idler arm or housing, reattach. If the spring is broken, replace. Belt slipping. Inspect pulleys for damage or looseness. Refer to "Crankshaft Pulley Replacement" on page 5 - 3 or "Rotor Pulley Replacement" on page 5 - 6.
DRIVE SYSTEMS In the 1999 manufacturing year, some models were built with the spring loaded idler system and some with the handle controlled rotor engagement. Although the pulleys and idler on Powerlite models are in the same locations and function the same as the older models, the belt is different. All Powerlite’s and some CCR 1000’s use a conventionally shaped V belt instead of the flat multi-grooved belt used on older models and all other CCR models.
DRIVE SYSTEMS Bail Controlled Rotor Engagement System (1999 And Newer Powerlites And All 20” CCR Models The basic parts of this system are identical to the spring loaded idler system. The difference is that the idler arm has been replaced with a combination idler and brake arm (Figure 86). The idler/ brake arm is controlled by a cable from a bail on the upper handle. With the belt cover removed the idler/brake arm is visible. There is a spring connected to the idler/brake arm.
DRIVE SYSTEMS BELT REPLACEMENT Belt Replacement, Bail System The belt drive models use one of two systems; the spring loaded or constant tension system and the control bail system. Depending on the model you might see a standard V belt or a wide flat belt with several V grooves. Note there are two versions of the multi-groove belt. While they look alike, there is a difference in width. Use the parts list for your model to assure you use the correct belt for the application.
DRIVE SYSTEMS BELT/PULLEY ALIGNMENT While perfection is not required in this application, the pulleys should be aligned fairly close. Use a straight edge long enough to run from the lower end of the rotor pulley to the upper end of the engine pulley. Applying the straight edge to the two pulleys will indicate how close the pulleys are to being in line. Within 1/8” of alignment will provide good belt life. 20” CCR models have an engine pulley that is held on with two set screws.
DRIVE SYSTEMS To replace the pulley, place the pulley on the hub, making sure the 4 lugs in the hub engage the holes in the pulley (Figure 94). Install the washer and locknut. Either use a new locknut or apply blue Loctite or equivalent to the threads. Torque the nut to 16 ± 2 ft·lbs (22 ± 3 N·m). Figure 93 1854-34 20” CCR Models The 20” CCR models have the engine pulley mounted with a key and two set screws (Figure 92). Loosen the set screws and the pulley will come straight off.
DRIVE SYSTEMS To replace the pulley, make sure the key is in place and slide the pulley on the shaft. Install the washer and bolt. Torque the bolt to 53 ± 7 in·lbs (599 ± 79 N·cm). IDLER ARM / IDLER PULLEY REPLACEMENT Powerlite Models Remove the belt cover. ASSEMBLY Install the carriage bolt through the side plate then the washer and idler arm. Apply a light coat of grease to the arm and bushing. The shoulder on the idler bushing must slide into the hole in the idler arm.
DRIVE SYSTEMS ROTOR BEARING/ ROTOR SHAFT REPLACEMENT Powerlite Style Remove the belt cover and drive belt. Wedge a block of wood in the rotor and remove the locknut holding the rotor pulley in place. Remove the rotor pulley and hub. The bearing will now slide off the shaft. Note there is a sleeve inside the bearing; slip it out of the bearing (Figure 98). Next remove the 3 capscrews that hold the bearing flange (Figure 98).
DRIVE SYSTEMS 20” CCR Style The 20” CCR rotor has only minor differences when compared to the Powerlite. The rotor pulley is attached to the rotor shaft with a key and a bolt (later models have the key built into the pulley). The bearing retainers are slightly different in that some of them have threaded studs in place of bolts. On the side opposite the drive, the outer bearing flange is a separate part. With the exception of these things, the Powerlite procedure is used.
DRIVE SYSTEMS Chain Adjustment Procedure (all models) 5. Loosen one bolt on the starter housing located on the right side of the engine (Figure 106). Proper chain adjustment is critical to all 14” and 21” single stage snowthrowers. If the chain is too slack or misaligned, the teeth of the impeller sprocket can shear. Also, if the chain is loose, the stripper assembly can break. If the chain is too tight, the drive system can bind, or potentially, break the crankshaft.
DRIVE SYSTEMS 7. Retighten the four bolts in the sequence shown (Figure 108). Then tighten the starter housing bolt on the right side of the unit (Figure 107). The four nuts located on the crankshaft side (left side of unit) of the engine should be torqued to 170 - 220 in·lbs. The bolt on the starter housing should be torqued to 90 - 120 in·lbs. 3. Using a needle nose pliers, remove the locking clip on the master connecting link of the chain. Remove the chain (Figure 109). Figure 109 4.
DRIVE SYSTEMS 5. It will be necessary to align the keyway (slot) of the crankshaft sprocket with the location key on the crankshaft (Figure 111). Should the locating key on the crankshaft show signs of wear, it may be necessary to replace the key. 7. After aligning the chain, tighten the allen head screws on the crankshaft sprocket (Figure 113). Figure 113 Figure 111 6. 8. Pull the engine back until the chain is snug, with no more than 1/8 inch deflection or slack (Figure 107). 9.
DRIVE SYSTEMS 2. Using a needle nose pliers, remove the locking clip on the master connecting link of the chain (Figure 109). The master link can now be pulled apart. 3. After removing the chain from the impeller and crankshaft sprockets, remove the two self-tapping screws retaining the stripper assembly (Figure 114 and Figure 115). 4. Next, remove all four bolts, two on the left side of the impeller housing and two in the right side of the impeller housing (Figure 116).
DRIVE SYSTEMS 9. Figure 118 6. After fitting the new end caps in position, slide the paddles into position and reinstall the screws (Figure 120). The screws that hold the impeller assembly together should be torqued to 15 in·lbs. (DO NOT OVERTORQUE!) 0217-069 Remove all screws retaining the rubber paddles to the rotor shells (Figure 119). Figure 120 0217-071 10. When replacing the end caps, the rotor shafts should also be replaced. 11.
DRIVE SYSTEMS 13. Place the chain around both sprockets (Figure 121). Install the master connecting link. When reinstalling the locking clip, slide the clip over one end of the master connecting link, and with the use of a needle nose pliers, lift the other end of the locking clip in place. 3. After removing the chain, remove the four bolts, two on the left side and two on the right side of the impeller housing, retaining the paddles, impeller sprocket, bushings, and rotor shafts (Figure 116). 4.
DRIVE SYSTEMS Should you need to replace the drive chain on your snowthrower, perform the following service procedure: 1. Refer to "Crankshaft Sprocket Replacement (all models)" on page 5 - 21. Complete steps 1 and 2. 2. Using a needle nose pliers, remove the locking clip on the master connecting link of the chain (Figure 109). The master connecting link can now be pulled apart and the old chain removed. 3. Note: Does not apply to models prior to 1972 – the rotor shell design was not used. 1.
DRIVE SYSTEMS Belt Driven Systems 3. Refer to page 6 - 7, step 3 for rotor paddle removal. 4. Remove the three nuts and washers securing the right hand bearing retainer (Figure 124). S-620 Model 38162 — 5000001 and up. The drive system uses a “through shaft” rotor design that is supported by two ball bearings (Figure 122). Figure 124 5. Figure 122 0406-001 Shaft And Bearing Disassembly 1. Remove the drive belt. Refer to "Replacing Drive Belt" on page 5 - 1. Complete steps 1 through 4. 2.
DRIVE SYSTEMS 6. If the shaft must be completely removed from the housing, remove the three screws retaining the right hand side plate to the rotor housing (Figure 126). Flex the side plate and withdraw the complete shaft, bearing flange, and thrust washer. Figure 126 7. Flex the right hand side plate and insert the rotor shaft with externally threaded end through the left hand side plate and bearing. 4. Tighten all the side plate retaining screws previously loosened. 5.
DRIVE SYSTEMS To replace the wheel bracket assembly on Model S620: 1. Drain all fuel from the fuel tank. Refer to page 2 5. 2. Remove the upper shroud. After removing the upper shroud, place the gas cap on the gas tank. 3. Remove the flange nut and cap screw at the base of the engine support bracket refer to (Figure 129). 4. After tipping the unit forward, remove the mounting bolts retaining the wheel brackets to the lower handle (Refer to page 7 - 1, Figure 161). 5.
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ELECTRIC START SYSTEM INTRODUCTION 4. Remove the three bolts (Figure 132) to the starter switch box. The electric start single stage snowthrowers use a 120volt starting system. When the starter is supplied with voltage, the helical shaft spins forcing the pinion gear to slide out on the shaft and engage the ring gear. CCR POWERLITE STARTER REMOVAL 1. Drain the fuel from the fuel tank using a pump type siphon. Caution: Ignition of fuel can result in severe personal injury of death.
ELECTRIC START SYSTEM 6. Disconnect the spark plug wire from the spark plug to prevent accidental starting (Figure 134). 11. Remove the starter assembly, wiring, and starter switch box. Installation Reverse the removal procedures. Note: Incorrect routing of the wire harness can cause electrical shock. Route and fasten the wire harness away from all moving parts. The wire tie for the starter must be tightly secured to the starter. CCR 1000/TECUMSEH HSK 635 STARTER REMOVAL Figure 134 1.
ELECTRIC START SYSTEM 3. Remove the two bolts holding the upper shroud to the front housing (Figure 137). 6. Remove the three bolts to the starter switch box (Figure 139). A Figure 137 4. Figure 139 1352-03 Remove the two screws holding the dash in position (Figure 138). 1854-11 (A) Screws 7. Lift the upper shroud up and remove the wires to the key switch (Figure 140). A B A Figure 138 1854-42 (A) Screws 5.
ELECTRIC START SYSTEM 10. Remove the upper shroud leaving the starter rope attached and position the upper shroud out of the working area. 2. Remove the three screws holding the control panel nameplate and let the control panel nameplate hang by the starter rope (Figure 142). 11. Remove the two screws on the starter and snip the tie holding the starter in position (Figure 141). A A A B Figure 142 1854-28 (A) Screws Figure 141 1854-39 3.
ELECTRIC START SYSTEM 6. Disconnect the spark plug wire from the spark plug to prevent accidental starting. 7. On the starter, remove the top bolt on the upper starter mounting plate (Figure 144). 9. Remove the two nuts on the lower black cover (Figure 146). B A B A Figure 146 (A) Nuts Figure 144 (A) Top Bolt 8. 1854-05 (B) Cover 1352-15 10. Remove the three screws for the starter switch box (Figure 147).
ELECTRIC START SYSTEM 12. Remove the second starter bolt and remove the starter assembly, wire harness, and starter switch box (Figure 148). 2. Remove the three screws from the front of the upper shroud, located between the directional vanes (Figure 149). A A B Figure 148 (A) Starter Mounting Bolt Figure 149 1854-10 (B) Motor Installation Reverse the removal procedures. Note: Incorrect routing of the wire harness can cause electrical shock.
ELECTRIC START SYSTEM 6. Remove the three screws securing the starter switch assembly to the control panel (Figure 151). Installation Reverse the removal procedures. Note: Incorrect routing of the wire harness can cause electrical shock. Route and fasten the wire harness away from all moving parts.
ELECTRIC START SYSTEM How It Works 3. Coming straight from the 120-volt outlet, the current is half-positive and half-negative. The rectifier charger polarity “filters” out the negative half of the wave to give you a direct current (Figure 154). Reverse the VOM leads and recheck the same two terminals. Note the results. You should have found continuity in one direction, but not the other. If not, replace the rectifier. This test must be performed on all four sides of the rectifier.
ELECTRIC START SYSTEM TROUBLESHOOTING Warning: The electric starter uses 120-volt current, which can cause electrical shock. Do not touch electrical components or wires while starter circuit is energized. STARTER MOTOR FAILS TO TURN Possible Cause Correction Power not reaching product Plug another appliance into extension cord, insure cord is OK. Engine has seized Verify that the engine turns over freely. Starter switch malfunctioning Check switch using a volt/ohmmeter set for resistance.
ELECTRIC START SYSTEM Starter Pinion Removal 2. 1. Remove the pinion cap dust cover (if equipped). 2. Push down on pinion spring stop and remove the pinion lock ring (Figure 158). Figure 158 Slide the connector off the starter switch. With the switch in the resting position (switch not depressed), place the continuity light of ohmmeter leads, one to each terminal on the starter switch. The light or meter, depending on the instrument used, should not indicate continuity.
MAINTENANCE WHEEL BRACKET REPLACEMENT (1975 AND OLDER MODELS) Often, when a single stage snowthrower is operated on the wheels instead of tipped forward, the wheel bracket holes will “wallow” (become oval shaped) and necessitate replacement. To replace the wheel brackets: 1. Drain all fuel from the fuel tank. Refer to "Draining The Fuel Tank" on page 2 - 5. Complete step 1. 2. After tipping the unit forward, remove the mounting bolts retaining the wheel brackets to the lower handle (Figure 161).
MAINTENANCE 3. Replace with a new scraper and secure to the housing with the three carriage bolts and locknuts. For All 14” And 21” Single Stage Snowthrowers: 1. Drain the fuel from the fuel tank. Refer to "Draining The Fuel Tank" on page 2 - 5. Complete step 1. 2. Remove the four carriage bolts and locknuts securing the scraper support bracket to the snowthrower housing (Figure 163). Figure 163 3.
MAINTENANCE 3. With the impeller housing facing you, loosen the screws securing one paddle to the rotor halves. Remove the worn paddle and replace (Figure 166). Figure 166 4. 5. Repeat steps 3 and 4 for the second paddle. Paddle Replacement For Snowthrowers With Impeller Sprocket/Tube Design: 1. Refer to "Paddle Replacement For Snowthrowers With Rotor Shell Design" on page 7 - 2. Complete step 1 and 2. 2.
MAINTENANCE REPLACING ROTOR BLADES (CURVED ROTOR MODELS) Rotor Blade Replacement Early CCR2000 Style There are two means of attaching the rotor blades to the rotor. Note: Always replace BOTH blades at the same time. One new and one worn blade will create a severe imbalance condition that may damage the machine. We also recommend that the scraper be replaced whenever the rotor blades are replaced to assure proper operation and performance.
MAINTENANCE Installing The New Blade 1992 And Newer Style The rotor blades are made of laminated rubber. Examine the edge of a blade to see the differences in the thickness of the layers. (Some blades have a part number on the thick side of the blade.) Beginning in 1992 the method of attaching the blades changed slightly and a wear indicator hole also became standard (Figure 173). Both blades MUST be installed with the thicker layer facing down.
MAINTENANCE VANE REPLACEMENT 3. Removal 1. Remove all mounting screws retaining the upper shroud to the snowthrower. Remove the shroud. 2. To remove the vane from the vane mount, grasp the vane near the vane mount and turn it 90° either to the left or right and gently remove the vane (Figure 174). Next, to remove the vane from the snowthrower, using a screwdriver, gently tuck the vane in the small slot in the shrouding. At the same time, apply a slight downward pressure on the vane (Figure 175).
MAINTENANCE Replacement 1. Holding the vane firmly at the base, slide the base of the vane into the small slot in the shroud (Figure 176). 1. Remove all the mounting screws retaining the upper shroud to the unit. Remove the shroud. 2. Remove eye bolt nut from eye bolt at the lower handle (Figure 177). If the rubber grommet is worn or missing, replace. Next, slide the vane control rod from the small slot in the vane bracket. Note: Sliding the vane at an angle to the slot will ease installation.
MAINTENANCE 4. Next, unfasten the vanes at the upper vane mount. Refer to "VANE REPLACEMENT" on page 7 - 6. Both the vane linkage and vane mount can then be removed together as one piece. 5. To remove the vane linkage from the vane mount, support the vane mount and linkage with a vise or two blocks of wood (Figure 179). Using a punch, lightly drive the vane link from the vane mount. Replace the vane mount or vane link if bent or misformed. 3.
MAINTENANCE 5. Unfasten all the vanes at the vane mount. Refer to "VANE REPLACEMENT" on page 7 - 6. The vane mount and vane linkage can be removed together. Using a punch, lightly drive the vane link from the vane mount. Should the vane mount or link be misformed or bent, replace. Note: It will be necessary to support the vane mount with a block of wood or vise when driving the linkage from the vane mount (Figure 182). Figure 182 6. 0217-089 Reinstall the vane control assembly with the new hardware.
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TROUBLESHOOTING TROUBLESHOOTING TIPS - FAILURE TO START This section is not intended to cover everything that might happen. We will cover the most common problems and provide some tips to speed troubleshooting and repair. OLD FUEL By far the most common cause of failure to start is old or dried fuel due to improper storage procedures. The correction procedure varies from engine to engine. The following is an abbreviated carburetor cleaning process which often will get the engine started.
TROUBLESHOOTING CCR2000 With The 47P Series Engine This is a fixed jet carburetor so there is no adjustment needle to remove. However, some cleaning can be done without removing the lower shroud. Again drain the old fuel using a pump type siphon. If possible, put the machine on a workbench. Right below the choke control is a cut out in the lower shroud (Figure 184). The main jet in this carburetor (Figure 186) is in the center hub or boss. It can be removed with a flat blade screwdriver.
TROUBLESHOOTING Remove the float hinge, float, and needle. Remove the filter screen over the hub in the center of the carburetor. The main jet is located in this center hub or boss under the screen and can be removed with a small flat blade screwdriver. Spray carburetor cleaner in the hub where the main jet was and in the hole where the needle fits. Allow the carburetor cleaner to drain out.
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GAS POWER SHOVEL GENERAL INSTRUCTIONS This safety alert symbol means CAUTION - PERSONAL SAFETY INSTRUCTION. Read the instruction because it has to do with safety. Failure to comply with the instruction may result in personal injury. • Keep all shields and safety devices in place. If a shield or safety device is defective, make all repairs before operating the Power Shovel. Also tighten loose nuts, bolts, and screws. • Start the engine and let it warm up outdoors for about two minutes.
GAS POWER SHOVEL • Let the engine run for a few minutes after clearing snow so moving parts do not freeze when stored. MAINTENANCE AND STORAGE • Never leave fuel in the Power Shovel fuel tank when the Power Shovel is stored in a building where there is flame or spark present. Allow the engine to cool before storing. Never store the Power Shovel in the house, basement, or car, as gasoline and fumes are highly flammable, explosive, and dangerous if inhaled.
GAS POWER SHOVEL MIXING INSTRUCTIONS FOR GASOLINE AND OIL 4. Add an additional three quarts of gasoline to the premixed gasoline. The fuel mixture is now ready to use in your snowthrower. Safety Instructions CAUTION CAUTION Gasoline is flammable and caution must be used when handling or storing it. Do not fill the fuel tank while snowthrower is running, while it is hot, or when it is in an enclosed area.
GAS POWER SHOVEL Draining The Fuel Tank 3. Remove the three Phillips screws which attach the upper and lower shrouds in the impeller housing area (Figure 188). CAUTION Because the gasoline/oil mixture in the snowthrower fuel tank is explosive, the fuel mixture must be drained outdoors, away from fire and flame. Do not smoke while draining gasoline. To assure safe servicing of your snowthrower, it is critical that the fuel tank be drained.
GAS POWER SHOVEL 5. Lift the upper shroud away from the lower shroud. Replace the gas cap on to the gas tank to contain gas fumes and to prevent excess fuel mixture from dripping out of the fuel tank. Note: Aligning the upper shroud for replacement onto the snowthrower is eased by inserting the rubber isolator mount into the upper shroud, as shown (Figure 190).
GAS POWER SHOVEL PRIMER OPERATION TESTING THE SWITCH The primer, used on the Toro Gas Power Shovel is designed to pump a small amount of fuel from the carburetor into the carburetor throat. This extra fuel mixture assists with starting of a cold engine. The On/Off switch used on the Gas Power Shovel consists of a set of contact switch terminals and an actuator switch (Figure 193). The primer is operated by depressing the primer bulb while ensuring that the vent hole in the bulb is covered.
GAS POWER SHOVEL 4. Place one continuity light or volt/ohmmeter lead to each of the switches. The test instrument used should register continuity (Figure 194). ENGINE OPERATING THEORY 2-Cycle Engine – Theory Of Operation 2-cycle engines are used on the Toro Gas Power Shovel because of their: Figure 194 5. 0406-015 Now, turn the ignition switch to the “ON” or the 2 o’clock position. Visually check to ensure that the switch actuator is not in contact with the contact switch terminals.
GAS POWER SHOVEL In a loop-scavenged engine with a third-port, the flow of the fuel/air mixture can be described as follows: (Figure 197). Figure 197 1. 2. At a point slightly before top dead center (BTDC) of the piston travel, the spark from the plug ignites the fuel/air mixture. Also, at this time, the third-port opens allowing the fresh fuel/air mixture to rush into the crankcase to equalize the partial vacuum. Refer to Figure 199.
GAS POWER SHOVEL At a point of piston travel slightly before bottom dead center (BBDC) the fuel transfer ports, on the sides of the cylinder walls, are uncovered and the compressed fuel/air mixture in the crankcase is allowed to enter the combustion chamber where they help expel the burnt gases and charge the chamber for the following piston stroke. Refer to Figure 201. During the vacuum pulse, the metering diaphragm is drawn up which causes the metering lever to pivot on the metering lever pin.
GAS POWER SHOVEL NOTE: This setting is approximate; however, this setting will allow the engine to be started so the carburetor can be fine tuned – steps 2 through 3. CARBURETOR SERVICE 2. 1. Drain all fuel from the gas tank. Refer to "Draining The Fuel Tank" on page 9 - 4. 2. Remove upper shroud. See "Removing The Upper Shroud" on page 9 - 4. 3. Place the gas cap on the gas tank to contain gas fumes and excess fuel/oil mixture from dripping out of the tank during service. 4.
GAS POWER SHOVEL Carburetor Disassembly 1. 2. Remove the pump cover screw, pump cover, pump cover gasket, and the pump diaphragm (Figure 204). Remove the four metering diaphragm cover screws, metering diaphragm assembly, and metering diaphragm gasket (Figure 205). Figure 205 3. Figure 204 Remove the choke valve from the choke shaft assembly (Figure 206).
GAS POWER SHOVEL 4. Remove the high speed needle. lnspect the tip of the needle and replace it if it is blunt or damaged (Figure 207). Figure 207 5. 6. Figure 209 0406-024 Remove the metering lever pin screw and the inlet needle valve, metering spring, metering lever, and metering lever pin (Figure 208). Remove the fuel inlet screen (Figure 209). 0406-026 7.
GAS POWER SHOVEL 1. Install the fuel inlet screen with a .300 inch diameter hollow tube. Ensure that the screen is properly seated (Figure 210). Figure 210 2. 3. Install the fuel pump components onto the carburetor body. NOTE: Prior to tightening the pump cover screw, ensure that the fuel pump gasket is in contact with the fuel pump cover and that the fuel pump diaphragm is in contact with the carburetor body. 4. Install the metering lever components.
GAS POWER SHOVEL 6. Install the metering diaphragm over the gasket and locating pins on the carburetor body. The metering diaphragm should be installed with the metering disc toward the carburetor body (Figure 214).
GAS POWER SHOVEL 4. Cylinder Compression 1. Visually inspect the bottom of the fuel tank for dirt or other contaminants. A. Cranking pressure is 100 psi. Refer to "Compression Test Procedures" on page 9 16. 2. If dirt, water, or other contaminants are present, the tank should be flushed with a small amount of fuel, and refilled with fresh fuel. Checking Fuel Tank Venting The fuel tank cap vent allows air into the tank as fuel is consumed.
GAS POWER SHOVEL COMPRESSION TEST 5. Fully extend the recoil starter rope and tie a knot in the rope at the starter idler pulley (Figure 219). Compression Test Procedures 1. Install the compression gauge into the spark plug hole. IMPORTANT: Be certain that no more than 1/2” of the gauge is threaded into the cylinder as damage to the piston may result. 2. Pull the starter rope several times to obtain the highest compression reading. 3.
GAS POWER SHOVEL 9. The engine is mounted on a single engine mount and is supported with a rubber isolator mount. To disconnect the engine from the housing, remove the screw and nut which hold the engine mount to the housing (Figure 220). ENGINE SHORT BLOCK If engine compression falls below 100 psi, or if internal damage to the cylinder has occurred, the engine short block must be replaced. An engine short block is available as a factory sealed assembly only.
GAS POWER SHOVEL 3. Remove the muffler and dried gasket material and carbon build up with a putty knife or wooden dowel (Figure 223). 5. Remove the cooling shroud (Figure 225). Figure 225 6. Figure 223 4. 0406-040 0406-042 Remove the ignition module. Inspect the module and wire insulation for damage. Replace as needed (Figure 226). Remove the recoil starter assembly. Check the condition of the starter rope. If the rope is worn, replace it with #4 Diamond Braid Rope (Figure 224).
GAS POWER SHOVEL FLYWHEEL REMOVAL 7. 1. Remove the engine (Refer to "ENGINE REMOVAL" on page 9 - 16). 2. Remove the cooling shroud. 3. Remove the recoil starter assembly. 4. Anchor the starter cup with Toro Multi-Purpose Tool #45-1390 and remove the flywheel nut with a 3/4” open end wrench (Figure 227). Alternate tightening the 1/4 - 20 x 2 inch screws into the cored holes until the seat between the crankshaft and the flywheel is loosened (Figure 229).
GAS POWER SHOVEL 5. The C.D.I. module legs should be gapped at .008 .012 inch (.2 - .3mm) from the flywheel magnets (Figure 230) and the module mounting screws tightened at 25 - 35 in·lb (28 - 40 kg cm). Figure 230 RECOIL STARTER SERVICING To Replace The Starter Rope: 1. Remove the three screws which hold the recoil starter to the cylinder. 2. Fully extend the recoil starter rope and align the cut out sections of both the rope pulley and the metal pulley cover (Figure 232).
GAS POWER SHOVEL 5. Remove the rope from the pulley and measure the rope. Replace the rope with #4 Diamond Braid Rope (Figure 234). DRIVE SYSTEM The Toro Gas Power Shovel drive system consists of a crankshaft adapter, a rubber drive coupling, a series of three drive gears, and a rotor. Engine power is transferred from the engine crankshaft and crankshaft adapter (through the rubber drive coupling) through the gear train to the rotor (Figure 235).
GAS POWER SHOVEL Examine the gear teeth for wear and assure that the gears are fully engaging each other. REMOVING ROTOR 1. Figure 236 0406-053 Figure 238 2. Figure 237 Remove the rotor pin, locknut, and washer securing rotor to right side of housing (Figure 238). 0406-055 Remove the locknut and washer from the opposite end (Figure 239). 0406-054 The drive gear bushings are made of a self lubricating material and they do not require lubrication.
GAS POWER SHOVEL REPLACE SCRAPER STORAGE The scraper blade located on the bottom of the Power Shovel should be replaced if worn. 1. Refer to "Draining The Fuel Tank" on page 9 - 4. Complete all steps on page 9 - 4. 1. 2. Remove the spark plug. 3. Next, pour two teaspoons of engine oil into the spark plug hole. 4. Pull the recoil starter slowly to distribute oil on the inside of the cylinder. 5. Replace the spark plug. 6. Clean the rotor, rotor housing, and exterior of Power Shovel.
GAS POWER SHOVEL GAS POWER SHOVEL ENGINE SPECIFICATIONS ENGlNE: Type Toro built, air-cooled, 2-cycle, single cylinder gasoline engine Rotation CCW Displacement CC (cu·in) 20.9 cc (1 .28 cu·in) Bore mm (in) 32mm (1.26 in) Stroke mm (in) 26mm (1.
GAS POWER SHOVEL ENGINE TORQUE SPECIFICATIONS Torque kg-cm/kgm Torque in-lb/ft·lbs Backing Plate Starter Screws 35 - 41 kg-cm 30-45 in·lbs *lntake Stress Plate Screws 23 - 35 kg-cm 20 - 30 in·lbs Ignition Coil Screws 29 - 40 kg-cm 25 - 35 in·lbs Cooling Shroud Screws 8 - 20 kg-cm 7 - 1 7 in·lbs Muffler Tab to Cylinder Screw 35 - 46 kg-cm 30 - 40 in·lbs °Muffler Screws 46 - 58 kg-cm 40 - 50 in·lbs Carburetor Screws 40 - 46 kg-cm 35 - 40 in·lbs Starter Cup Screw 1.4- 1.
NOTES 9 - 26 Single Stage Snowthrower Service Manual
NOTES Single Stage Snowthrower Service Manual 9 - 27
MAINTENANCE RECORD Date 9 - 28 Hours Used Check Scraper Check Belt/Chain Check Spark Plug Preparing For Storage Comments Single Stage Snowthrower Service Manual
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