Form No. 3325-422 Rev B Groundsmaster 328-D 4 Wheel Drive Traction Unit Model No. 30627—210000001 and Up Model No.
Warning Check Cooling System . . . . . . . . . . . . . . . . . . . . . Checking the Hydraulic System Oil . . . . . . . . . . . Checking the Rear Axle . . . . . . . . . . . . . . . . . . . . Check Bidirectional Clutch Lubricant . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting/Stopping Engine . . . . . . . . . . . . . . . . . . . Bleeding Fuel System . . . . . . . . . . . . . . . .
Introduction Safety Read this manual carefully to learn how to operate and maintain your product properly. The information in this manual can help you and others avoid injury and product damage. Although Toro designs and produces safe products, you are responsible for operating the product properly and safely. This machine meets or exceeds the B71.4 1999 specifications of the American National Standards Institute, in effect at time of production, when weights are installed according to chart on page 20.
• Use care when loading or unloading the machine into a trailer or truck. • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision. – Use only an approved container. – Never remove fuel cap or add fuel with engine running. Allow engine to cool before refueling. Do not smoke.
• If the engine stalls or the machine loses headway and cannot make it to the top of a slope, do not turn the machine around. Always back slowly straight down the slope. This product is capable of amputating hands and feet and throwing objects. Always follow all safety instructions to avoid serious injury or death. Use of this product for purposes other than its intended use could prove dangerous to user and bystanders.
• To make sure of optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty. specifically designed, sized, located, and tested for injury reduction. If a rollover occurs, a modified ROPS will not provide adequate protection.
93-7836 1. To move the traction unit forward or backward, depress the traction pedal. 93-7823 (Model 30631) 1. Read the operator’s for further information about engine oil. 55-4300 (Model 30627) 93-6696 (Model 30631) 1. Warning—spring loaded mechanism. Read the operator’s manual for further instructions. 82-8940 1. Locks and unlocks the steering column 77–3100 (Model 30627) 1. Fan blades can cause injury—stay away from moving parts. 105-0056 1. Fast 2. Slow 3. Engine stop 4. Engine run 5.
67-1720 (Model 30627) 82-8930 (Model 30627) 93-7830 (Model 30631) 1. Read the operator’s manual for further instructions. 1. Caution—read the operator’s manual for further instructions. 2. Wheel torque specifications 93-7831 105-2531 (Model 30627) 1. Parking brake—read the operator’s manual for further instructions. 67–1710 (Model 30627) 105-2532 (Model 30631) 1.
3–7821 (Model 30631) 1. Caution 2. Fill coolant to within 1 in. (25 mm) of the top of the tank. 3. Read the operator’s manual for further instructions. 93-7806 (Model 30631) 1. 2. 3. 4. PTO on PTO off Warning—read the operator’s manual. Cutting hazard to hands or feet—stay away from rotating blades and moving parts. 5. Throw object hazard—keep bystanders away. 6. Warning—set the parking brake, stop the engine, and remove the key before leaving the operator’s position. 7.
93-7816 1. Change the hydraulic filter after first 10 operating hours—read the operator’s manual for further instructions. 100-6574 (Model 30631) 1. Hot surface hazard—stay away. 2. Cutting/dismemberment hazard—stay away from moving parts. 70–2560 (Model 30627) 1. Change the rear axle lubricant initially after first 50 operating hours, thereafter every 500 hours 93–6697 (Model 30631) 72-3700 (Model 30627) 1. Read operator manual 2.
93-7832 (Model 30631) 66-6390 (Model 30627) 1. To move the traction unit forward or backward, depress the traction pedal. 2. Tipping hazard—when driving down slopes less that 14 degrees, lower the cutting unit to the ground. When driving down slopes less than 20 degrees, use the ROPS, fasten the seat belt, and lower the cutting unit to the ground. 3. Warning—disengage the Power Take Off before raising the cutting unit. 4. Float cutting unit 5. Lower cutting unit 6.
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 governed to 3200–3250 rpm high idle, no load. 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.
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 Washer 4 Tie rod 1 Mount to steering arms. Bumper 1 Mount to axle support. Flange head screw, 5/16 x 1 in. 1 Locknut 5/16 in.
Note: Some models may have already been set–up at factory. 2. Secure ball joint ends to steering arms with a jam nut and torque it to 40–60 ft.-lb. (54–81 N⋅m). Install a second jam nut and torque it to 40–60 ft.-lb. (54–81 N⋅m). Installing the Steering Cylinder Installing the Rear Bumper 1. Remove screw and R-clamp securing steering cylinder to packaging. Retain R-clamp for future installation. 1. Remove 2 capscrews (1/2 x 3/4 in.
Installing the Seat 4 The machine is shipped without the seat assembly. Either optional Seat Kit, Model No. 30623 or 30625 must be installed. 3 2 1 Seat Kit, Model No. 30623, Standard Seat 1. Loosely secure (2) R-clamps to right side of seat bottom with 2 capscrews and flat washers supplied in kit (Fig. 7). Install manual tube into R-clamps and tighten capscrews (Fig. 7). 5 2 Figure 5 1. Steering wheel 2. Jam nut 3. Cap 4. Screw 5. Foam seal 3.
6 1 1 2 Figure 9 1. Pivot shaft 4 2. Roll pin 2 3 4. Hold seat up with seat support rod (Fig. 10). 5 5. Plug wire harness connector into seat switch connector on bottom of seat. Figure 11 1. Seat suspension assembly 2. R-clamps 3. Lock washer, flat washer, and nut 1 4. Manual tube 5. Cap 6. Seat support 4. Mount seat pivot bracket to frame with (2) flange screws supplied in kit (Fig. 8) 5. Mount seat and seat support to seat pivot bracket with pivot shaft and roll pin (Fig. 9). 6.
8. Disengage seat support rod and pivot downward. Pivot seat down and push lynch pin through seat latch stud. Flip wire end of pin over latch stud (Fig. 13). 1 1 Figure 13 Figure 15 1. Lynch pin 1. Roll bar 9. 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. Pushing the Traction Unit Off of the Pallet Installing the Seat Belt 1. Reach in and rotate bypass valve on transmission (Fig.
Activating and Charging the Battery 2. Slide the red, positive battery cable (Fig. 6) onto positive battery post and tighten nut securely. Warning 1. If battery is not filled with electrolyte or charged, bulk electrolyte with 1.280 specific gravity @ 77° F (25° C) must be purchased from a local battery supply outlet. Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.
5. Remove spring pin from cylinder pin and slide cylinder pin out of cylinder. Warning 6. Raise front of lift arm until hole in movable end of cylinder lines up with holes in lift arm brackets. Use caution as lift arm is spring-loaded. Hold parts together with cylinder pin, spring pin, and cotter pin. Cotter pin must be to the outside. Sudden release of the spring-loaded push arms could cause injury.
Before Operating Hood Prop 1 (Model 30627 only) 1. Position the machine on a level surface. 2. Disengage hood latch and open the hood. 3. Slide bottom of hood prop (Fig. 19) out of retaining bracket. Lower hood prop, pivot upward, then downward to prop up hood. 1 Figure 20 1. Dipstick 3. If oil is below FULL mark, remove fill cap and add SAE 10W–30 CD, CE, CF, CF–4 or CG–4 classification oil until level reaches FULL mark on dipstick. DO NOT OVERFILL. Figure 19 1 1.
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.
Note: Do not mix engine oil and automatic transmission fluid or hydraulic system component damage may result. When changing fluids, also change transmission filter. Do not use Dexron II ATF. 1. Position the machine on a level surface. 2. Remove check plugs from axle and make sure lubricant is up to bottom of each hole. If level is low, remove fill plugs and add enough lubricant to bring the level up to the bottom of the check plug holes (Fig. 25).
The hydrostatic transmission will not, at any time, act as a parking brake for the machine. To engage parking brake, push down fully on brake pedal and pull parking brake knob out; then release the pedal. To release parking brake, depress brake pedal until parking brake knob retracts. To stop quickly, remove right foot from traction pedal and depress the brake pedal. To permit straight stops, brake cables must be evenly adjusted.
Engine Coolant Temperature Warning Light 1 The light illuminates and engine shuts down when coolant reaches a excessively high temperature (Fig. 29). 2 4 3 7 1 Figure 28 11 6 8 9 10 1. Lift lever Caution 5 12 The exposed, rotating blades of the cutting unit or other implements are hazardous. Figure 29 Never raise a cutting unit or implement while the blades or other components are rotating. 1. 2. 3. 4. 5. 6. 7. PTO Lever The PTO lever (Fig.
Throttle Control Release key when engine starts. If additional preheat is required, turn key to OFF position then to ON / preheat position. Repeat process as required. The throttle (Fig. 29) is used to operate engine at various speeds. Moving throttle forward increases engine speed—FAST; backward decreases engine speed—SLOW. 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. 4.
3. Open the air bleed screw on the fuel injection pump (Fig. 31). To check operation of interlock switches: 1. Drive the machine slowly to a large, relatively open area. Lower cutting unit, stop the engine and apply parking brake. 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.
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 • • • • After first 50 hours • Change the engine oil filter. • Check engine RPM. Check the PTO belt tension. Check the fan and alternator belt tension. Change the transmission filter. Torque the wheel lug nuts. Every 50 hours • • • • • • • • • Check the battery electrolyte level.
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: PTO shaft and yokes (3) (Fig. 33); lift arm pivots (Fig. 33); right and left push arm ball joints (Fig. 33); push arm pivot bushings (Fig. 34); PTO pivot housing blocks (Fig. 35); brake pivot bushings (Fig. 36); axle tie rod (2) (Fig.
Servicing Air Cleaner 1. Pull latch outward and rotate air cleaner cover counter–clockwise. Remove cover from body (Fig. 41). Clean inside of air cleaner cover. 1 Figure 38 2 Figure 41 2. Air cleaner latch 3. Air cleaner cover 2. Gently slide primary filter (Fig. 42) out of air cleaner body to reduce the amount of dust dislodged. Avoid knocking filter against air cleaner body. Figure 39 General Air Cleaner Maintenance 1. Check air cleaner body for damage which could possibly cause an air leak.
B. Keep air hose nozzle at least 2” from filter and move nozzle up and down while rotating the filter element. Inspect for holes and tears by looking through the filter toward a bright light. 4. Inspect new filter for shipping damage. Check sealing end of filter. Do not install a damaged filter. 5. Insert new filter properly into air cleaner body. Make sure filter is sealed properly by applying pressure to outer rim of filter when installing. Do not press on flexible center of filter. 1 Figure 43 6.
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 • 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. 47).
Cooling Fan Belt Level of coolant in expansion tank (Fig. 50) 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. 52). 1 1 Figure 50 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.
5. Install fan belt guard and secure with capscrews (Fig. 52). Close and latch hood. 2. Press down on front of traction pedal and check travel. There should be approximately 3.50” clearance between end of pedal and floor plate when pedal in fully depressed (Fig. 55). Adjust pump control rod (Fig. 56) to attain dimension. To replace belt: 1. Follow procedures in step 1 and 2 above. 2. Loosen locknut securing adjustable idler pulley, slide pulley away from belt, and remove belt from pulleys (Fig. 53). 3.
2. Rotate shaft to relocate worn surface of friction wheel away from underside of traction pedal. 8. Jack up frame so left front wheel is off the shop floor. Use a jack stand to support the frame. 3. Tighten nuts to secure shaft and wheel in position. 9. Start engine and allow it to idle for 5 minutes to heat oil in transmission to operating temperature. Adjusting the Traction Drive for Neutral 10. Release parking brake; then check left front wheel that is off shop floor. Wheel must not be rotating.
Replacing the PTO Switch 3. Measure length of PTO spring between flat–washers (Fig. 59). There should be a spring length of 3-3/16 in. (81 mm). 1. Remove instrument cover and disconnect negative battery cable from battery. 4. To adjust, hold head of adjusting screw with wrench (under PTO actuating arm) and turn locknut (Fig. 59). 2. Move PTO lever forward to ON position. 5. Move PTO lever to OFF position and install instrument cover. 3. Remove boot from button end of PTO switch (Fig. 58).
Adjusting Rear Wheel Toe–in 2. To adjust gap, loosen switch mounting screws, adjust gap and tighten screws. 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. 3. Disconnect switch pigtail connector from wire harness. 4.
1. To reduce free travel of turn pedals—tighten the brakes—loosen front nut on threaded end of brake cable (Fig. 63). Then tighten rear nut to move cable backward until turn pedals have 1/2 to 1 in. (13 to 25 mm) of free travel. Tighten front nut after brakes are adjusted correctly. 1 Figure 64 1. Slot 6. Using a brake adjusting tool or screwdriver, rotate star nut (Fig. 64) down until brake drum (Fig. 65) locks because of outward pressure of brake shoes (Fig. 65). 1 2 Figure 63 1. Jam nuts 2.
adjusted correctly, the lift lever should just clear the rounded part of the latch as lever is moved into FLOAT position. 1 1. Unscrew ball from lift lever. 2. Remove self tapping screws and lift cover off lift lever to expose the latch. 3. Loosen two capscrews on top of the lift lever latch (Fig. 66). Place lever on rounded tip of latch (Fig. 66), and slide latch w/lever forward until stopping resistance is felt. Then tighten capscrews to lock the latch in place.
Note: Do not mix engine oil and automatic transmission fluid or hydraulic system component damage may result. When changing fluids, also change transmission filter. Do not use Dexron II ATF. Note: Fluid to operate the power steering is supplied by the hydraulic system transmission charge pump. Cold weather start–up may result in “stiff” operation of the steering until the hydraulic system has warmed up. Using proper weight hydraulic oil in system minimizes this condition.
Fuses The fuse block is located below control panel. 4 1 1 1 3 2 Figure 70 1. Drain plugs 5 Changing Bidirectional Clutch Lubricant Figure 72 1. 15 Amp. Fuse 2. 7.5 Amp. Fuse 3. Open (Accessories) After every 400 hours of operation, the oil in the bidirectional clutch must be changed. 4. 7.5 Amp. Fuse 5. Accessory connector 1. Position the machine on a level surface. Servicing the Battery 2. Clean area around check plug on bidirectional clutch. 3.
Hydraulic Schematic 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 IN 3/8 1/2 STEERING VALVE 4.95 CU. IN. DISP. 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.
Electrical Schematic F1 15 A F 2 7.5 A 15 A OR GY GY F3 R BK B X BU OFF RUN I A START S Y Y F 4 7.
Engine Seasonal Storage 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 SAE 10W–30 CD, CE, CF, CF–4 or CG–4 classification oil until level reaches FULL mark on dipstick. DO NOT OVERFILL.
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 1996 or newer Toro Commercial Product (“Product”) purchased after January 1, 1997, to be free from defects in materials or workmanship for two years or 1500 operational hours*, whichever occurs first.
