OPERATOR’S MANUAL SWZT Walk-Behind Model: SWZT36-481FS SWZT48-541FS Congratulations on owning a Scag mower! This manual contains the operating instructions and safety information for your Scag mower. Reading this manual can provide you with assistance in maintenance and adjustment procedures to keep your mower performing to maximum efficiency. The specific models that this book covers are listed on the inside cover. Before operating your machine, please read all the information enclosed.
WARNING FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY OR DEATH. • Read this manual completely as well as other manuals that came with your mower. • ALWAYS FOLLOW OSHA APPROVED OPERATION. • DO NOT operate on steep slopes. • Always travel across slopes. • DO NOT mow on wet grass. Wet grass reduces traction and steering control. • Keep all shields in place, especially the grass discharge chute.
Table of Contents R Table of Contents SECTION 1 - GENERAL INFORMATION. ..................................................................................1 1.1 Introduction............................................................................................................................................1 1.2 Direction Reference............................................................................................................................1 1.
Table of Contents R SECTION 6 - ADJUSTMENTS..................................................................................................18 6.1 parking brake adjustment.............................................................................................................18 6.2 Neutral adjustment..........................................................................................................................18 6.3 NEUTRAL LATCH ADJUSTMENT...................................................
Section 1 R GENERAL INFORMATION 1.1 Introduction USE ONLY SCAG APPROVED ATTACHMENTS AND ACCESSORIES. Your mower was built to the highest standards in the industry. However, the prolonged life and maximum efficiency of your mower depends on you following the operating, maintenance and adjustment instructions in this manual. Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine. See Section 8-1.
Section 1 R 1.
Section 2 R SAFETY INFORMATION 2.1 Introduction Danger Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or death. Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in the operation, transport, maintenance and storage of the equipment. Make sure every operator is properly trained and thoroughly familiar with all of the controls before operating the mower.
Section 2 R 3. DO NOT allow children to ride or play on the machine, it is not a toy. 11. Fuel is flammable; handle it with care. Fill the fuel tank outdoors. Never fill it indoors. Use a funnel or spout to prevent spillage. Clean up any spillage before starting the engine. 4. Clear the area to be mowed of objects that could be picked up and thrown by the cutter blades. 12. DO NOT add fuel to a running or hot engine. Allow the engine to cool for several minutes before adding fuel.
Section 2 R 6. Start the engine when the neutral latches are in the neutral lock position, the cutter blades are disengaged, parking brake is engaged and the speed control lever is in neutral. Caution Do not touch the engine or the muffler while the engine is running or immediately after stopping. These areas may be hot enough to cause a burn. 7. If the mower discharge ever plugs, shut off the engine, remove the ignition key, and wait for all movement to stop before removing the obstruction.
Section 2 R 2.5 Maintenance Considerations & storage WARNING 1. Never make adjustments to the machine with the engine running unless specifically instructed to do so. If the engine is running, keep hands, feet, and clothing away from moving parts. Hydraulic fluid is under high pressure and can penetrate skin causing injury. If hydraulic fluid is injected into the skin, it must be surgically removed within a few hours by a doctor or gangrene may result. 2.
Section 2 R 2.
Section 3 R SPECIFICATIONS 3.1 ENGINE General Type.................................................................................................Heavy Duty Industrial/Commercial Gasoline Brand...................................................................................................................................................................Kawasaki Engine Model: (Scag Model SWZT36-481FS)...........................................................................................
Section 3 R True Cutting Width: 36..........................................................................................................................................................35.5" (90.2 cm) 48...........................................................................................................................................................48" (122.0 cm) Cutting Height Adjustment.................................................................
Section 4 R OPERATING INSTRUCTIONS 2. Mower Deck Switch (Figure 4-1). Used to engage and disengage the mower drive system. Pulling up on the switch will engage the deck drive. Pushing down on the switch will disengage the deck drive. CAUTION Do not attempt to operate this mower unless you have read this manual. Learn the location and purpose of all controls and instruments before you operate this mower. 3. Engine Choke Control (Figure 4-1). Used to start a cold engine. 4.
Section 4 R 4.4 STARTING THE ENGINE 7. Speed Control Lever (Figure 4-1). Used to select the forward speed. 8. Neutral Latch (Figure 4-1). Used to secure the hydraulic drive system in neutral. Apply neutral latches when parking the machine. CAUTION 9. Operator Presence Control (Figure 4-1) The operator pressence control levers must be depressed before the speed control lever is shifted out of neutral or engaging the mower deck. DO NOT USE STARTING FLUIDS.
Section 4 R Forward Travel - NOTE The mower may not travel straight in reverse. To travel forward with the mower, depress the operator presence control, release the parking brake, select the desired speed using the speed control lever, pull steering control levers upward, release the neutral latch for both sides and slowly release both the left and right steering control levers. The higher the notch selected using the speed control lever, the faster the machine will travel.
Section 4 R 2. Keep the entire mower clean to inhibit serious heat damage to the engine or hydraulic oil circuit. 4.7 HILLSIDE OPERATION 3. Check the drive belts for proper alignment and any signs of wear. Correct and adjust if necessary. WARNING Danger DO NOT operate on steep slopes. ALWAYS FOLLOW OSHA APPROVED OPERATION. To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling. 1.
Section 4 R 4.11 MOVING MOWER WITH ENGINE STOPPED 3. Cut grass when it is dry and not too tall. Do not cut grass too short (cut off 1/3 or less of existing grass for best appearance). Mow frequently. To “free-wheel” or move the mower around without the engine running, move the dump valve control lever forward and out towards the drive wheels. See Figure 4-3. Disengage the parking brake and move the mower by hand. When the machine is in the desired position, engage the parking brake.
Section 5 R TROUBLESHOOTING CUTTING CONDITIONS Condition Cause Stringers - Occasional Low engine RPM Blades of Uncut Grass Width of Deck SGB020 Cure Run engine at full RPM Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Dull blades, incorrect sharpening Sharpen blades Deck plugged, grass accumulation Clean underside of deck Belts slipping Adjust belt tension Streaking - Strips of Dull, worn blades Uncut Grass in Cutting Path Incorrect bla
Section 5 R TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) Condition Cause U ne v en C ut on F lat Lift worn from blade Ground - Wavy High-Low Appearance, Scalloped Blade upside down Cut, or Rough Contour Cure Replace blade Mount with cutting edge toward ground Deck plugged, grass accumulation Clean underside of deck Too much blade angle (deck pitch) Adjust pitch and level Deck mounted improperly See your authorized SCAG dealer Bent spindle area See your authorized SCAG dealer Dull blade Sharpen
Section 5 R TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) Condition Cause Scalping - Blades Hitting Low tire pressures Dirt or Cutting Very Close to the Ground Ground speed too fast Width of Deck Cure Check and adjust pressures Slow speed to adjust for conditions Cutting too low May need to reduce ground speed, raise cutting height, change direction of cut, and/or change pitch and level Rough terrain May need to reduce ground speed, raise cutting height, and/or change direction of cut Ground speed
Section 6 R ADJUSTMENTS 6.1 parking brake adjustment - NOTE If this procedure does not achieve proper brake adjustment, please contact your authorized Scag dealer. WARNING 6.2 Neutral adjustment Do not operate the mower if the parking brake is not operable. Possible severe injury could result. -NOTENeutral has been set by your Scag dealer at the time of set up and normally does not need to be adjusted. If, however, you find that the neutral has come out of adjustment, follow the procedure below.
Section 6 R 6.3 NEUTRAL LATCH ADJUSTMENT -NOTEThis adjustment is made to allow the steering control levers to be moved out of the neutral latch without engaging reverse. 1. Raise the drive wheels off the ground and block the caster wheels to prevent the machine from moving. CONTACT HERE 2. Make sure the speed control lever is in neutral, the steering control levers are in the neutral latch position, and the parking brake is on. 3. Loosen the control rod jam nuts. See Figure 6-3. Figure 6-4.
Section 6 R 3. If the machine pulls to one side, stop the mower by placing the steering control levers in the neutral position. Using a wrench, turn the tracking adjustment nut on the slower side counter clockwise until the machine tracks straight. WARNING If the pump drive belt fails, steering control will be lost which could result in serious injury or death. Replace the pump drive belt as needed or every 400 hours / 2 years, whichever occurs first. 4.
Section 6 R ADJUST HERE ADJUST HERE Figure 6-6. Cutter Deck Pitch Adjustment Figure 6-5. Cutter Deck Level Adjustment 2. Move bolts on the front and rear deck hanger chains up or down in the slots until the cutter deck is level between both sides. See Figure 6-5 3. Hold the cutter deck in position and tighten the two (2) elastic stop nuts to secure the cutter deck in the proper position. 2.
Section 6 R Cutter Deck Height 6.9 electric clutch adjustment The cutter deck height adjustment is made to ensure that the cutter deck is cutting at the height indicated on the cutting height index gauge. To check for proper deck height, be sure that the mower is on a flat, level surface and the tires are properly inflated. The electric clutch serves two functions in the operation of the mower.
Section 6 R ADJUSTMENT NUTS ADJUSTMENT NUTS Figure 6-11. Clutch Air Gap Adjustment This adjustment should be done every 500 hours of operation or annually, whichever comes first. In cases where the machine is heavily used, airgap settings should be checked more often. If the air gap is too narrow, the clutch armature may drag when disengaged, resulting in premature failure. If the air gap is too wide, the clutch may be slow to engage as the magnet must pull the armature in from a greater distance.
Section 7 R MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS HOURS Break-In (First 10) 8 20 40 100 200 Procedure 400 Comments X Check all hardware for tightness X C h e c k a l l b e l t s f o r p r o p e r See paragraph 7.6 alignment X Check all hydraulic fittings and See paragraph 2.5 hoses for leaks X Check engine oil level X *Clean mower X Check tire pressure See paragraph 7.8 X *Clean air filter element See paragraph 7.
Section 7 R MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D) HOURS Break-In (First 10) 8 40 100 200 Procedure 400 Comments X Check hardware for tightness X Change engine oil filter See paragraph 7.4 X Replace engine fuel filter See paragraph 7.5 X Grease caster wheel pivot See paragraph 7.2 shafts X Drain hydraulic system, replace Use SAE 20W50 Motor Oil. hydraulic oil and filters See paragraph 7.2 X Adjust electric PTO clutch See paragraph 6.
Section 7 R 7.3 Hydraulic System B. Changing Hydraulic Oil A. Checking Hydraulic Oil Level The hydraulic oil level should be checked after the first 10 hours of operation. Thereafter, check the oil after every 200 hours of machine operation or monthly, whichever occurs first. The hydraulic system oil should be changed after the first 120 hours of machine operation and every 400 hours or annually thereafter, whichever occurs first.
Section 7 R 4. Remove the hydraulic filters from both axles and allow the fluid to drain into the container. Properly discard the oil when the system has drained completely. See Figure 7-2. 10. The hydraulic system will need to be purged of all air. Raise the rear of the machine so the drive wheels are off the ground. Use jackstands and block the front caster wheels to prevent the machine from moving. 5.
Section 7 R 7.4 Engine Oil FILLER NECK INSERT 1/4. 1/2 . . . E A. Checking Engine Crankcase Oil Level .3/4 F FUEL LEVEL The engine oil level should be checked after every 8 hours of operation or daily as instructed in the Engine Operator’s Manual furnished with this mower. B. Changing Engine Crankcase Oil After the first 20 hours of operation, change the engine crankcase oil and replace the oil filter.
Section 7 R 10. Replace gas cap and tighten the fuel cap until it ratchets. 2. Check the cutter blades for straightness. If the cutter blades appear bent, they will need to be replaced. B. Replacing In-Line Fuel Filter Elements 3. Check the cutter blades for wear. If any part of the cutter blade is worn to 1/2 its original thickness, replace the cutter blade. The engine fuel filter should be replaced after every 500 hours of operation or annually, whichever occurs first. WARNING 1.
Section 7 R 4. To install the new cutter blade, put the lockwasher and flatwasher onto the blade bolt and slide the bolt into the hole in the cutter blade. Angle Blade Back X Do Not Cut In X Must NOT Exceed 1/3 Blade Width 30 SGB033 CUTTER BLADE Figure 7-6. Blade Sharpening 2. Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. The cutter blades should be balanced to 1-1/2 oz-in.
Section 8 R ILLUSTRATED PARTS LIST 8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES. Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine.
Section 8 R 36" CUTTER DECK 1 5 2 3 5 4 6 6 10 7 9 11 12 8 15 13 1 9 46 18 19 12 21 20 18 23 24 28 17 23 25 29 1 16 26 22 14 45 45 44 27 31 43 32 33 42 41 34 40 37 38 32 35 39 36 30 2014 SWZT 36CD 32
Section 8 R 36" CUTTER DECK Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 * * 14 15 16 17 18 19 20 21 22 Part No. Description 04021-09 424615 04043-04 424367 04112-06 04063-01 484619 483851 483324 04001-154 482245 04021-10 462031 462355 425872 04030-03 04001-12 04021-22 04043-04 483453-03 462190 43708 04001-62 462571 Nut, Elastic Stop 3/8-16 Bracket, Belt Guide Flatwasher, 3/8-.391 x .938 x .105 Dust Shield Nut, 3/4-16 Spiral Lock Key, 1/4 x 1/4 x 1-1/4" Belt, Cutter Deck Pulley, 5" Idler Pulley, 5.
Section 8 R 48" CUTTER DECK 1 3 2 3 6 7 4 4 5 8 10 1 6 7 6 9 24 3 4 23 10 22 10 13 21 12 1 11 14 15 16 9 22 20 15 19 18 17 44 45 52 48 50 25 43 6 1 51 44 47 46 42 29 49 26 36 27 28 37 29 38 30 39 31 37 32 33 40 34 41 35 2014 SWZT CD 34
Section 8 R 48" CUTTER DECK Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 * * 22 23 24 25 Part No. Description 04021-09 424615 04112-06 04063-01 484618 04043-04 424367 483851 425978 483323 43711 483422 04001-12 04041-11 483453-03 462191 43708 04001-62 04110-04 481625-01 462031 462472 425619 04021-10 482245 04001-154 462572 Nut, Elastic Stop 3/8-16 Bracket, Belt Guide Nut, 3/4-16 Spiral Lock Key, 1/4 x 1/4 x 1-1/4" Belt, Cutter Deck Flatwasher, 3/8-.391 x .938 x .
Section 8 R CUTTER DECK CONTROLS 1 2 8 3 4 5 5 6 7 A 9 16 6 10 7 10 10 15 14 9 13 17 12 11 9 12 11 10 38 35 33 36 34 29 18 10 30 31 37 32 19 38 28 26 34 25 20 24 13 5 10 9 9 10 36 22 9 21 22 A 21 10 23 27 26 20 14 23 5
Section 8 R CUTTER DECK CONTROLS Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 Part No.
Section 8 R ENGINE DECK & HYDRAULIC SYSTEM 1 2 3 11 4 7 5 9 13 26 6 8 12 14 4 27 10 23 14 15 18 24 16 A 25 17 19 7 20 16 8 B 28 22 21 30 29 31 32 36 60 33 A 35 34 B 36 37 38 39 40 41 42 43 44 45 44 49 61 55 46 48 58 56 57 47 55 33 50 54 51 53 52 38 55 59
Section 8 R ENGINE DECK & HYDRAULIC SYSTEM Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Part No.
Section 8 R STEERING CONTROLS 1 A 6 13 2 11 27 10 9 16 14 6 15 22 1 B 3 A 3 5 4 19 17 18 28 20 12 8 30 6 29 21 26 25 1 31 23 22 24 7 32 4 37 33 52 9 30 36 35 B 36 35 1 38 34 26 51 50 25 39 49 40 48 45 1 26 1 41 26 47 45 44 43 23 53 23 42 46 1 6 40
Section 8 R STEERING CONTROLS Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Part No. Description 04021-09 484589 43674 484035 452363 04040-05 04001-77 04019-02 48717 425937 462574 04010-33 484609 484749 04032-05 04009-11 483601 462575 484672 452118 04019-03 483453-19 04001-20 04003-09 04001-12 04021-10 04021-01 04009-14 Nut, Elastic Stop 3/8-16 Linkage, Speed Control Spacer Bearing Neutral Plate Weldment Flatwasher, 3/8-.406 x .812 x .
Section 8 R BRAKE COMPONENTS 3 2 4 1 5 6 18 7 17 9 8 10 19 11 12 6 13 A 14 13 12 1 4 15 1 16 A 42
Section 8 R BRAKE COMPONENTS Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Part No. Description 04069-01 462515 481548 04062-02 44187 04017-16 04061-02 04040-05 43751 484175 04021-18 04021-10 48796 452358 43726 44165 04050-01 483453-18 04017-27 Pin, Rue Cotter 3/8" Dia. Brake Lever w/Grip Grip, Brake Lever Hair Pin, .080 x 1.19" Rod, Brake Linkage Cpscrw, 5/16-18 x 3/4"Serrated Flange HH Cotter Pin, 3/32 x 3/4" Flatwasher, 3/8-.406 x .812 x .
Section 8 R SCAG EQUIPME NT ELECTRICAL SYSTEM AND THROTTLE CONTROL POWER 1 2 6 3 4 5 7 8 9 11 13 10 15 12 31 14 18 20 19 17 16 14 13 21 15 14 22 23 26 24 25 27 28 29 30 44 12
Section 8 R ELECTRICAL SYSTEM AND THROTTLE CONTROL Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Part No.
Section 8 R SWZT FUEL SYSTEM 1 21 2 22 3 19 18 12 13 16 19 20 15 14 17 A 4 A B 12 Tank 23 24 12 25 Purge 6 5 To Fuel Pump *10 *9 8 7 26 *10 B *11 To Engine Purge Port 30 27 13 12 28 15 16 46 28 15 29
Section 8 R SWZT FUEL SYSTEM Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Part No. Description 484286 484297 484259 484242 462375 482571 483747 48059-01 483617 * * * 48059-05 484345 48030-22 04030-03 04001-08 484285 484333 48059-02 484347 484279-01 484343-01 484287 48136-17 452176 04019-03 48030-09 04040-15 04001-09 04003-12 Fuel Cap w/ Tether Fuel Cap w/ Tether - California Models Only (not shown) Fuel Gauge Assembly (incl.
Section 8 R ZT-2800 HYDRAULIC AXLE ASSEMBLY 21 22 20 23 31 47 l au erh Ov it lK a Se 33 24 19 18 32 25 17 16 30 26 28 29 15 34 27 14 13 35 12 36 41 11 42 37 43 10 9 8 7 38 40 44 46 4 53 6 3 4 5 52 2 51 51 48 50 54 55 49 56 57 61 58 59 65 1 45 66 62 60 63 64 48 39
Section 8 R ZT-2800 HYDRAULIC AXLE ASSEMBLY Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Ref. No. Part No.
Section 8 R REPLACEMENT DECALS AND INFORMATION PLATES 7 FAST FAST 6 THROTTLE 5 4 3 2 1 N SLOW WARNING BEFORE OPERATING *Read operator's manual *Make sure guards, shields & safety devices are in place & working 2 SPEED CONTROL ON MOWER DECK WARNING OFF SLOW INSTALL BELT COVER BEFORE OPERATING MACHINE NEUTRAL READ OPERATOR'S MANUAL *Clear area of children, bystanders & debris *Mow across face of slopes *Trained operators only 3 PULL OUT TO ENGAGE PUSH IN TO DISENGAGE *Solicite etiquetas
Section 8 R REPLACEMENT DECALS AND INFORMATION PLATES Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 * Part No.
Section 8 R SWZT ELECTRICAL SCHEMATIC WHITE WHITE BLACK W/RED STRIPE BLUE YELLOW YELLOW PTO SWITCH BLACK BLACK KEY SWITCH WHITE WHITE YELLOW BLACK BLACK W/RED STRIPE WHITE WHITE BLACK BLACK W/RED STRIPE BLACK BLACK YELLOW L.H. OPERATOR PRESENCE SWITCH BLACK W/RED STRIPE BLACK W/RED STRIPE HOURMETER BLACK W/RED STRIPE BLACK W/RED STRIPE R.H.
LIMITED WARRANTY - COMMERCIAL EQUIPMENT Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts and labor during the periods specified below. This warranty is limited to the original purchaser provided the product was purchased from an Authorized Scag Power Equipment Dealer and is not transferable.
© 2013 Scag Power Equipment Division of Metalcraft of Mayville, Inc.