Form No. 3355–389 Rev A Groundsmaster 328-D 2 & 4 Wheel Drive Traction Units Model No. 30626—250000001 and Up Model No. 30627—260000188 and Up Model No. 30630—250000001 and Up Model No.
Install Rear Weight . . . . . . . . . . . . . . . . . . . . . . . . . Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hood Prop (Models 30626 & 30627 only) . . . . . . . . . . . . . . Checking the Crankcase Oil . . . . . . . . . . . . . . . . . . Filling the Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . Check Cooling System . . . . . . . . . . . . . . . . . . . . . . Checking the Hydraulic System Fluid . . . . . . . . . . Checking the Hydraulic System . . . . . . . . . .
Changing the Hydraulic System Fluid . . . . . . . . . . Changing Rear Axle Lubricant . . . . . . . . . . . . . . . Checking Steering Cylinder Bolt Torque (Models 30627 & 30631 only) . . . . . . . . . . . . . . Changing Bidirectional Clutch Lubricant (Models 30627 & 30631 only) . . . . . . . . . . . . . . Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Servicing the Battery . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Schematic (Models 30627 & 30631 only) . . . . . .
Safe Operating Practices • Thoroughly inspect the area where the equipment is to be used and remove all objects which may be thrown by the machine. The following instructions are from the CEN standard EN 836:1997, ISO standard 5395:1990, and ANSI B71.4-1999. • Warning—Fuel is highly flammable. Take the following precautions: Training – Store fuel in containers specifically designed for this purpose. • Read the operator’s manual and other training material carefully.
• Stay alert for holes in the terrain and other hidden hazards. • Keep hands and feet away from the cutting units. • Look behind and down before backing up to be sure of a clear path. • Use care when pulling loads or using heavy equipment. • Slow down and use caution when making turns and crossing roads and sidewalks. Stop cylinders/reels if not mowing. – Use only approved drawbar hitch points. – Limit loads to those you can safely control. – Do not turn sharply. Use care when reversing.
• Disconnect battery and remove spark plug wire before making any repairs. Disconnect the negative terminal first and the positive last. Reconnect positive first and negative last. – Reduce speed when making sharp turns. Avoid sudden stops and starts. – When near or crossing roads, always yield the right-of-way. • Use care when checking the cylinders/reels. Wear gloves and use caution when servicing them.
Vibration Level • Use only Toro-approved attachments and replacement parts. The warranty may be voided if used with unapproved attachments. This unit does not exceed a vibration level of 2.5 m/s2 at the hands based on measurements of identical machines per ISO 5349 procedures. Sound Power Level This unit does not exceed a vibration level of 0.5 m/s2 at the posterior based on measurements of identical machines per ISO 2631 procedures.
93-7275 (Models 30630 & 30631) 27-7310 (Models 30626 & 30627) 1. Read the operator’s manual for further instructions. 2. Do not use starting fluid. 52-1321 (Models 30626 & 30627) 93-7822 (Models 30630 & 30631) 1. Caution—fill fuel tank to 1 in. (25 mm) below filler neck. Read the operator’s manual for further instructions. 93-6680 (Models 30630 & 30631) 83-9150 (Models 30626 & 30627) 93-6686 1. Hydraulic oil 2. Read the Operator’s Manual.
3-7272 (Model 30630 & 30631) 93-7830 1. Caution—read the operator’s manual for further instructions. 2. Wheel torque specifications 1. Fan blades can cause injury—stay away from moving parts. 105-2531 (Models 30626 & 30627) 82-8940 1. Locks and unlocks the steering column 107-2927 (Models 30630 &30631) 1.
6-5976 1. Engine coolant under pressure 2. Explosion hazard—read the Operator’s Manual. 82-8930 (Model 30626 & 30627) 1. Read the operator’s manual for further instructions. 3. Warning—do not touch the hot surface. 4. Warning—read the Operator’s Manual. 93-7831 1. Parking brake—read the operator’s manual for further instructions. 27-7290 (Models 30626 & 30627) 67–1710 (Model s 30626 & 30627) 106-6754 (Models 30630 & 30631) 1. Warning—do not touch the hot surface. 2.
93–6697 (Model 30631) 1. Read operator manual 2. Change the rear axle lubricant initially after first 50 operating hours, thereafter every 500 hours 72-3700 (Model 30627 & 30626) 106-8120 (Models 30626 & 30627) 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Cutting hazard of hand and foot—stay away from moving parts. Battery Symbols 93-7839 (Model 30631) Some or all of these symbols are on your battery. 1. Explosion hazard 2. No fire, open flames, or smoking. 3.
105-7823 (Models 30630 & 30631) 1. Traction drive—to drive forward, press the top of the traction control pedal forward and down; to drive in reverse, press the bottom of the traction control pedal rearward and down. 105-7822 (Models 30626 & 30627) 2. Warning—disengage the power take-off (PTO) before raising the cutting unit(s). 3. Float the cutting unit(s) over the ground. 4. Lower the cutting unit(s). 5. Raise the cutting unit(s). Manufacturers Mark 1.
Specifications Note: Specifications and design subject to change without notice. General Specifications Engine Air Cleaner Muffler Kubota, three cylinder, 4 cycle liquid cooled diesel engine. 26 hp @ 3000. Engine high idle is 3100–3250 rpm, low idle is 1500–1650 rpm. Heavy duty, remote mounted Volume equal to approximately five times engine displacement for excellent silencing. Cooling System Radiator has tube and fin construction with hydraulic oil cooler in lower tank.
General Specifications (continued) Interlock Switches PTO switch—shuts engine off when PTO is engaged with no operator in seat. Traction switch—shuts engine off when traction pedal is engaged with no operator in seat. Seat switch—shuts engine off if operator leaves seat without disengaging PTO and/or traction pedal. Engine will not start if PTO or traction pedal is engaged. Brake switch–shuts engine off when PTO or traction pedal is engaged with parking brake set.
Optional Equipment 72” Side Discharge Cutting Unit 72” Rear Discharge Cutting Unit Model No. 30722 Model No. 30722TE Model No. 30710 Model No. 30710TE Quick Attach (for Guardian 72″ Recycler Cutting Unit, Model No. 30716) Model No. 30729 Quick Attach (for 72” Side Discharge Cutting Unit, Model No. 30722, 72” Rear Discharge Cutting Unit, Model No. 30710 and Rotary Broom, Model No. 30743) Tire Chains (front) (set of 2) Model No. 30719 Part No. 76–1840 Part No.
Setup Note: Determine the left and right sides of the machine from the normal operating position. Loose Parts Note: Use the chart below to verify that all parts have been shipped. Description Qty. Use Screw, M10 x 30 mm 4 Mounting steering cylinder to rear axle. Washer 4 (Models 30627 & 30631 only) Tie rod 1 Bumper 1 Capscrew, 1/4 x 1/2 in. 1 Secure steering hoses to bumper. Flange nut 1/4 in.
Note: Some models may have already been set–up at factory. Installing the Steering Cylinder (Models 30627 & 30631 only) 1 1. Remove screw and R-clamp securing steering cylinder to packaging. Retain R-clamp for future installation. 2. Mount cylinder support bracket to rear of axle with 4 screws (M10 x 30) screws and washers (Fig. 2). Apply Loctite 242, or equivalent, and torque screws to 48–60 ft.-lb. (65–81 N⋅m). Figure 3 1. Tie rod 2 Installing the Rear Bumper (Models 30627 & 30631 only) 1.
3. Mount wheels and torque mounting nuts to 45-55 ft.-lb. (61-75 N⋅m). 1 2 1 4 Installing the Steering Wheel 1. Move rear wheels so they point straight ahead. 3 2. Remove jam nut from steering shaft. Slide foam seal and steering wheel onto steering shaft (Fig. 5). 4 Figure 6 3 1. Wing nuts 2. Hold down strap 2 1 Installing the Seat The machine is shipped without the seat assembly. Either optional Seat Kit, Model No. 30623 or 30625 must be installed. 5 Seat Kit, Model No.
1 1 Figure 8 1. Seat pivot bracket Figure 11 3. Mount seat and seat support to seat pivot bracket with pivot shaft and roll pin (Fig. 9). 1. Lynch pin 7. Slide seat completely forward and backward to ensure proper operation and that seat switch wires and connectors are not pinched or do no contact any moving parts. Seat Kit, Model No. 30625, Deluxe Seat with Model No. 30628 Seat Adapter Kit 1 2 1.
Installing the Roll Bar 3. Mount seat support over four threaded studs at the bottom of seat suspension assembly and secure in place with flangenuts (Fig. 12). 1. Lower roll bar onto frame, aligning mounting holes as shown in Figure 15. 4. Mount seat pivot bracket to frame with (2) flange screws supplied in kit (Fig. 8) 2. Secure roll bar to frame with 4 bolts (3/4 x 5-1/2 in.), lock washers, and nuts (Fig. 15). Tighten securely. 5.
Activating and Charging the Battery 4. Allow approximately 20 to 30 minutes for the electrolyte to soak into the plates. Refill as necessary to bring the electrolyte to within about 1/4 inch (6 mm) of the bottom of the fill well (Fig. 18). Use only electrolyte (1.265 Specific Gravity) to fill battery initially. Warning 1. Remove the battery from the machine. Important Do not add electrolyte while the battery is in the machine. You could spill it, causing corrosion.
4. Coat both battery connections with either Grafo 112X (skin-over) grease, Toro Part No. 505-47, petroleum jelly or light grease to prevent corrosion and slide rubber boot over positive terminal (Fig. 6). Warning Battery terminals or metal tools could short against metal tractor components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. 5. Install the instrument cover and lock the two latches.
Checking the Torque of the Front Wheel Nuts Warning 1 5 Failure to maintain proper torque of the front wheel nuts could result in failure, loss of wheel, or personal injury. 2 3 Torque the front wheel nuts to 45–55 ft.-lb. (61–75 NVm) after 1–4 hours of operation and again after 10 hours of operation. Torque every 250 hours thereafter. 4 Greasing the Traction Unit Figure 20 1. Jam nut 2. 2 x 4 in.
Install Rear Weight To comply with CEN standard EN 836:1997, ISO standard 5395:1990 and ANSI/OPEI B71.4–1999 Standard, rear weight must be added to rear of traction unit. Use chart below to determine weight requirements. Order parts from your local Authorized Toro Distributor. Note: A rear weight kit, part no. 24–5780 is supplied with Model No. 30630. Two Wheel Drive Cutting Unit Description Rear Weight Required Weight Part Number Weight Description Qty. 72″ Side Discharge (Model No. 30722) 70 lb.
Before Operating 2. Remove dipstick (Fig. 22), wipe clean and reinstall dipstick. Remove dipstick and check oil level. Oil level should be up to FULL mark on dipstick Hood Prop (Models 30626 & 30627 only) 1. Position the machine on a level surface. 2. Disengage hood latch and open the hood. 1 3. Slide bottom of hood prop (Fig. 21) out of retaining bracket. Lower hood prop, pivot upward, then downward to prop up hood. 1 Figure 22 1. Dipstick 3.
Filling the Fuel Tank Caution Danger • If engine has been running, pressurized hot coolant can escape when radiator cap is removed and cause burns. Under certain conditions, diesel fuel and fuel vapors are highly flammable and explosive. A fire or explosion from fuel can burn you and others and can cause property damage. 1. Check level of coolant in expansion tank. Coolant level should be between the marks on side of tank.
Checking the Hydraulic System The front axle housing acts as the reservoir for the system. The transmission and axle housing are shipped from the factory with approximately 5 quarts (4.7 l) of high quality hydraulic fluid. Check the level of the hydraulic fluid before the engine is first started and daily thereafter. The recommended replacement fluid is: 1 Toro Premium Transmission/Hydraulic Tractor Fluid (Available in 5 gallon pails or 55 gallon drums.
Check Bidirectional Clutch Lubricant under heavy load or when ascending a hill, have throttle in FAST position while depressing traction pedal slightly to keep engine rpm high. When engine rpm begins to decrease, release traction pedal slightly to allow engine rpm to increase. (Models 30627 & 30631 only) 1. Position the machine on a level surface. Caution 2. Rotate clutch (Fig. 28) so check plug (shown in 12 o’clock position) is positioned at 4 o’clock.
4 5 1 1 2 Figure 30 3 1. Lift lever Figure 29 1. Traction pedal 2. Turn pedals 3. Brake pedal 4. Parking brake knob 5. Tilt steering control PTO Lever The PTO lever (Fig. 31) has two positions: ON (engage) and OFF (disengage). Slowly push PTO lever fully forward to ON position to start the implement or cutting unit blades. Slowly, pull lever backward to OFF position to stop implement operation.
Engine Coolant Temperature Warning Light The throttle regulates the speed of the cutter blades or other implement components and, in conjunction with traction pedal, controls ground speed of the traction unit. The light illuminates and engine shuts down when coolant reaches a excessively high temperature (Fig. 31). 2 4 3 7 1 11 5 6 Seat Adjusting Lever To adjust standard seat, push lever (Fig. 32) backward and slide seat to the desired position. Release lever to lock seat in place.
Note: Move throttle to 1/2 throttle position when restarting a warm engine. 5. When engine is started for the first time, or after engine oil change, or overhaul of engine, transmission or axle, operate the machine in forward and reverse for one to two minutes. Also operate the lift lever and PTO lever to assure proper operation of all parts. Turn power steering wheel to the left and right to check steering response.
1. Drive the machine slowly to a large, relatively open area. Lower cutting unit, stop the engine and apply parking brake. 1 2. Sit on seat. Move PTO lever to ON position. With the traction pedal in neutral position, try to start the engine. The engine should not crank. If the engine cranks, there is a malfunction in the interlock system that should be corrected before beginning operation. 3. Sit on seat. Move PTO lever to OFF and depress the traction pedal. Try to start the engine.
Another characteristic to consider is the operation of the turning pedals that are connected to the brakes. The brakes can be used to assist in turning the machine. However, use them carefully, especially on soft or wet grass because the turf may be torn accidentally. Another benefit of the turning brakes is to maintain traction. For example: in some slope conditions, the uphill wheel slips and loses traction.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure After first 10 hours • • • • Check the PTO belt tension. Check the fan and alternator belt tension. Change the transmission filter. Torque the wheel lug nuts. After first 50 hours • • • • Change the engine oil and filter. Check engine RPM. Check the PTO belt tension.
Daily Maintenance Checklist Duplicate this page for routine use. For the week of: Maintenance Check Item Mon. Tues. Wed. Thurs. Check safety interlock operation. Check that the grass deflector is in the down position. Check brake operation. Check the engine oil level. Check the cooling system fluid level. Drain the water/fuel separator. Check the air cleaner. Check the radiator and screen for debris. Check unusual engine noises.1 Check the transmission oil level. Check the hydraulic hoses for damage.
Lubricating the Machine The traction unit must be lubricated regularly. If machine is operated under normal conditions, lubricate all bearings and bushings after every 50 hours of operation. The traction unit bearings and bushings that must be lubricated are: All Models PTO shaft and yokes (3) (Fig. 35) Lift arm pivots (Fig. 35) Right and left push arm ball joints (Fig. 35) Figure 36 Push arm pivot bushings (Fig. 36) PTO pivot housing blocks (Fig. 37) Brake pivot bushings (Fig.
General Air Cleaner Maintenance • Check air cleaner body for damage which could possibly cause an air leak. Replace a damaged air cleaner body. • Service the air cleaner filters when air cleaner indicator (Fig. 43) shows red or every 400 hours (more frequently in extreme dusty or dirty conditions). Do not over service air filter. Figure 39 1 (2) (4) Figure 43 1. Air cleaner indicator • Be sure cover is sealing around air cleaner body. (2) Figure 40 Servicing Air Cleaner 1.
screen. The screen in front of radiator can be removed—by loosening wing nuts at top of screen—to make cleaning easier. force dirt through the filter into the intake tract. This cleaning process prevents debris from migrating into the intake when the primary filter is removed. 3. Remove and replace the primary filter (Fig. 45). Cleaning of the used element is not recommended due to the possibility of damage to the filter media.
Servicing Fuel System Note: Refer to Fill Fuel Tank With Diesel Fuel for proper fuel recommendations. 1 Danger Under certain conditions, diesel fuel and fuel vapors are highly flammable and explosive. A fire or explosion from fuel can burn you and others and can cause property damage. 2 Figure 48 • Use a funnel and fill the fuel tank outdoors, in an open area, when the engine is off and is cold. Wipe up any fuel that spills. • Do not fill the fuel tank completely full.
Bleeding Air From Injectors 3. After the radiator is thoroughly cleaned, clean out debris that may have collected in the channel at the radiator base. Note: This procedure should be used only if fuel system has been purged of air through normal priming procedures and engine will not start; refer to Bleeding Fuel System. 4. Clean and install the screen. 1. Loosen the pipe connection to the No. 1 injector nozzle and holder assembly at injection pump (Fig. 50).
Cooling Fan Belt Level of coolant in expansion tank (Fig. 53) should be between the marks on side of tank. 1. Unlatch and open hood. 2. Remove capscrews (5) securing fan belt guard and remove guard (Fig. 55). 1 Figure 53 1 1. Expansion tank Servicing the Engine Belts Check tension of all belts initially after the first day of operation and every 100 hours thereafter. Alternator Belt 1. Unlatch and open hood. 2. Proper tension will allow 3/8 in. (10 mm) deflection when a force of 10 lbs.
Adjusting Traction Control Rod 5. Install fan belt guard and secure with capscrews (Fig. 55). Close and latch hood. 1. Check traction drive neutral position to assure front wheels do not creep; refer to Adjusting Traction Drive for Neutral. To replace belt: 1. Follow procedures in step 1 and 2 above. 2. Loosen lock nuts and adjust traction pedal stop screw (Fig. 58) to a length of 3.00”. 2. Loosen locknut securing adjustable idler pulley, slide pulley away from belt, and remove belt from pulleys (Fig.
Adjusting Traction Pedal Friction Wheel wheel stops rotating, tighten capscrews holding pump plate against side of transmission. Verify the adjustment with throttle in SLOW and FAST position. 1. Loosen two nuts securing traction pedal shaft on right side of pedal (Fig. 59). 7. Block right front tire and both rear tires so vehicle cannot roll forward or backward. 2. Rotate shaft to relocate worn surface of friction wheel away from underside of traction pedal. 8.
Adjusting PTO Drive Belt Tension 4. Rotate adjusting screw until it contacts the switch button. Continue to rotate the screw until the circuit is completed (switch “clicks”). After the switch clicks, rotate the adjusting screw an additional 1/2 turn. Tighten jam nut. Important Check PTO belt tension initially after first 10 hours and 50 hours of operation and after every 100 hours of operation thereafter.
Adjusting the Parking Brake Interlock Switch 2 1 1. Gap between parking brake shaft pivot paddle and bottom of interlock switch (Fig. 63) should be approximately 1/16” (Paddle must not contact switch). 3 1 Figure 64 2 1. Pivot plate 2. Small nut 3. Large nut 3 Adjusting Rear Wheel Toe–in (Models 30627 & 30631 only) Figure 63 1. Parking brake interlock switch 2. Parking brake shaft pivot paddle The rear wheels should not toe–in or toe–out when they are adjusted correctly.
Adjusting Rear Wheel Toe–in Adjusting the Rear Wheel Bearings (Models 30626 & 30630 only) (Models 30626 & 30630 only) The rear wheels should not toe–in or toe–out when they are adjusted correctly. To check the rear wheel toe–in, measure the center–to–center distance at wheel hub height, in front and in back of the rear tires. If the wheels toe–in or toe–out, an adjustment is required. 1. Jack up rear of machine until wheel is off shop floor.
Adjusting the Brakes Adjust the service brakes when there is more than 1 in. (25 mm) of “free travel” of the turn pedals, or when the brakes do not work effectively. Free travel is the distance the brake pedal moves before braking resistance is felt. The brakes should only need adjusting after considerable use. These periodic adjustments can be performed where the brake cables connect to the brake pedal mount.
Replacing the Hydraulic Fluid Filter The hydraulic fluid filter keeps the hydraulic system relatively free of contaminants and must be serviced at regular intervals. Initially, change filter after first ten hours of engine operation, and thereafter, after every 200 hours of operation or yearly, whichever comes first. Use Toro oil filter, Part No. 23-9740, as a replacement.
5. Install new filter; refer to steps 1–2 in Replacing Hydraulic Oil Filter, for proper procedures. 6. Install drain plug in fitting between axle housing and filter (Fig. 73). 7. Remove dipstick from axle filler tube (Fig. 74) and fill axle to proper level with correct type of hydraulic fluid; refer to table above. 8. Start and run the engine at idle speed for about two minutes and turn the steering wheel lock to lock to purge air trapped in the system. Shut the engine off. 1 1 Figure 75 9.
Changing Bidirectional Clutch Lubricant (Models 30627 & 30631 only) After every 400 hours of operation, the oil in the bidirectional clutch must be changed. 4 1 3 1. Position the machine on a level surface. 2 2. Clean area around check plug on bidirectional clutch. 3. Rotate clutch so check plug is positioned downward (Fig. 77). 5 Figure 78 2 1. 15 Amp. Fuse 2. 7.5 Amp. Fuse 3. Open (Accessories) 4. 7.5 Amp. Fuse 5. Accessory connector Servicing the Battery 1 Warning Figure 77 1.
Hydraulic Schematic (Models 30627 & 30631 only) MAN. 1/4 LIFT CYLINDER 2.50 BORE 3.25 STROKE 1/4 A T P B STEERING CYLINDER 1.50 DIA. BORE 7.15 STROKE 1/4 1/4 1/4 1/4 3/8 1/2 R L AUX. 1/2 3/8 1/2 STEERING VALVE 4.95 CU. IN. DISP. IN OUT NOT IN 2 WHEEL DRIVE MODELS 70150 PSI CASE DRAIN THRU BEARING AT OUTPUT SHAFT OF TRANSMISSION 700900 PSI TRANSMISSION IMPLEMENT RELIEF: 700-900 PSI 3 CHARGE PUMP .33 IN /REV. 5200 PSI RES.
1/4 MAN. LIFT CYLINDER 2.50 BORE 3.25 STROKE T A 1/4 P B 1/4 1/4 52 1/2 1/4 1/4 L R 1/2 AUX. OUT IN 3/8 1/2 STEERING VALVE 4.95 CU. IN. DISP. NOT IN 2 WHEEL DRIVE MODELS 3/8 STEERING CYLINDER 1.50 DIA. BORE 7.15 STROKE 70150 PSI 5200 PSI CASE DRAIN THRU BEARING AT OUTPUT SHAFT OF TRANSMISSION 700900 PSI TRANSMISSION IMPLEMENT RELIEF: 700-900 PSI 3 CHARGE PUMP .33 IN /REV. RES.
Electrical Schematic (Models 30627 & 30631 only) F 1 15 A F 2 7.5 A F 3 15 A OR GY BK GY B X BU OFF RUN I START F 4 7.
OFF F 4 7.
Seasonal Storage Engine 1. Drain the engine oil from the oil pan and replace the drain plug. Traction Unit 2. Remove and discard the oil filter. Install a new oil filter. 1. Thoroughly clean the traction unit, cutting unit and the engine, paying special attention to these areas: 3. Remove fill cap and add 4 quarts (3.8 l) of oil until level reaches FULL mark on dipstick. DO NOT OVERFILL. • radiator screen • underneath the cutting unit • under the cutting unit belt covers 4.
The Toro General Commercial Products Warranty A Two-Year Limited Warranty Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Commercial Product (“Product”) to be free from defects in materials or workmanship for two years or 1500 operational hours*, whichever occurs first.
