Form No. 3359–382 Rev A Groundsmaster 328-D 2 & 4 Wheel Drive Traction Units Model No. 30626—280000001 and Up Model No. 30627—280000001 and Up Model No. 30630—280000001 and Up Model No.
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 . . . . . . . . . . . . . . Checking the Rear Axle . . . . . . . . . . . . . . . . . . . .
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) . . . . . . . . . . . . . Hydraulic Schematic (Models 30626 & 30630 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 B71.4-2004. • 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.
• Keep hands and feet away from the cutting units. • Stay alert for holes in the terrain and other hidden hazards. • 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 cutting units 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. – This machine is not designed or equipped for on–road use and is a “slow–moving vehicle.” If you must cross or travel on a public road, you should be aware of and comply with local regulations, such as required lights, slow moving vehicle signs, and reflectors. • Keep hands and feet away from moving parts.
• If major repairs are ever needed or if assistance is desired, contact an Authorized Toro Distributor. Sound Pressure Level • Use only Toro-approved attachments and replacement parts. The warranty may be voided if used with unapproved attachments. This unit has an equivalent continuous A-weighted sound pressure level at the operator ear of 89 dBA based on measurements of identical machines per EN 836 and ISO 11201.
93-6696 (Models 30630 & 30631) 27-7310 (Models 30626 & 30627) 1. Warning—spring loaded mechanism. Read the operator’s manual for further instructions. 93-7275 (Models 30630 & 30631) 93-7822 (Models 30630 & 30631) 1. Read the operator’s manual for further instructions. 2. Do not use starting fluid. 1. Caution—fill fuel tank to 1 in. (25 mm) below filler neck. Read the operator’s manual for further instructions. 114-9600 83-9150 (Models 30626 & 30627) 1. Read the Operator’s Manual. 93-6686 1.
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 30630 & 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.
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.
Installing the Steering Cylinder (Models 30627 & 30631 only) 2. Secure ball joint ends to steering arms with a castle nut and torque it to 40–60 ft.-lb. (54–81 N⋅m). Install a cotter pin. 1. Remove screw and R-clamp securing steering cylinder to packaging. Retain R-clamp for future installation. Installing the Rear Bumper 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.
2. Remove two wing nuts and hold down strap that secures battery (Fig. 5). Lift battery out of chassis. Keep wing nuts and hold down strap in safe place for later use. 1 2 1 4 1 3 Figure 7 1. Seat pivot bracket Figure 5 1. Wing nuts 2. Hold down strap 3. Positive terminal 4. Negative terminal 3. Mount seat and seat support to seat pivot bracket with pivot shaft and roll pin (Fig. 8). Installing the Seat The machine is shipped without the seat assembly. Either optional Seat Kit, Model No.
3. Mount seat support over four threaded studs at the bottom of seat suspension assembly and secure in place with flangenuts (Fig. 11). 1 4. Mount seat pivot bracket to frame with (2) flange screws supplied in kit (Fig. 7) 5. Mount seat and seat support to seat pivot bracket with pivot shaft and roll pin (Fig. 8). 6. Hold seat up with seat support rod (Fig. 9). 7. Route seat switch harness through holes in seat support and seat suspension (Fig. 12).
Installing the Roll Bar 3. Close bypass valve by rotating it clockwise until it is securely seated. Do not exceed 5 to 8 ft.-lb. (7 to 11 N⋅m). Do not start engine when valve is open. 1. Lower roll bar onto frame, aligning mounting holes as shown in Figure 14. Activating and Charging the Battery 2. Secure roll bar to frame with 4 bolts (3/4 x 5-1/2 in.), lock washers, and nuts (Fig. 14). Tighten securely. Use only electrolyte (1.265 Specific Gravity) to fill battery initially. 1.
Installing the Battery in the Chassis 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. 17). Warning Warning Battery terminals or metal tools could short against metal machine components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Charging the battery produces gasses that can explode.
Installing the Ball Joint and Connecting the Lift Cylinder Note: Ball joints are not required for all implements; refer to implement operator’s manual for requirements. 1. Thread jam nut fully onto right-hand ball joint. 1 2. Screw ball joint into right hand push arm until center of ball joint is 2-3/8 in. (60 mm) away from front of push arm (Fig. 18). Do not tighten jam nut. 5 2 3 2 1 4 4 Figure 19 1. Jam nut 2. 2 x 4 in. (51 x 102 mm) block 4 4. Carefully remove 2 x 4 in.
Checking the Torque of the Front Wheel Nuts Greasing the Traction Unit Before the machine is operated, it must be greased to assure proper operating characteristics; refer to Lubrication Maintenance. Failure to grease the machine will result in premature failure of critical parts. Warning Note: After setup has been completed, remove protective edging (used for shipping) from fenders. Failure to maintain proper torque of the front wheel nuts could result in failure, loss of wheel, or personal injury.
Before Operating Hood Prop (Models 30626 & 30627 only) 1 1. Position the machine on a level surface. 2. Disengage hood latch and open the hood. 3. Slide bottom of hood prop (Fig. 20) out of retaining bracket. Lower hood prop, pivot upward, then downward to prop up hood. 1 Figure 21 1. Dipstick 3. If oil is below FULL mark, remove fill cap and add oil until level reaches FULL mark on dipstick. DO NOT OVERFILL. Figure 20 1 1.
Filling the Fuel Tank • Use B5 (biodiesel content of 5%) or lesser blends in cold weather Use only clean, fresh diesel fuel or biodiesel fuels with low (<500 ppm) or ultra low (<15 ppm) sulfur content. The minimum cetane rating should be 40. Purchase fuel in quantities that can be used within 180 days to ensure fuel freshness. • Monitor seals, hoses, gaskets in contact with fuel as they may be degraded over time. • Fuel filter plugging may be expected for a time after converting to biodiesel blends.
Alternate fluids: If the Toro fluid is not available, other petroleum–based Universal Tractor Hydraulic Fluids (UTHF) may be used provided its specifications fall within the listed range for all the following material properties and it meets industry standards. We do not recommend the use of synthetic fluid.
Important When adding oil to the hydraulic system, use a funnel with a fine wire screen—200 mesh—and ensure funnel and oil are immaculately clean. This procedure prevents accidental contamination of the hydraulic system. 2 3. Screw dipstick filler cap finger–tight onto filler neck. It is not necessary to tighten cap with a wrench. 4. Lower the implement. 1 Checking the Rear Axle Figure 27 The rear axle has three separate reservoirs which use SAE 80W-90 wt. gear lube.
Operation Brake Pedal Whenever the engine is shut off, the parking brake (Fig. 28) must be engaged to prevent accidental movement of the machine. Note: Determine the left and right sides of the machine from the normal operating position. 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.
2 1 4 3 7 1 11 Figure 29 5 6 8 9 10 12 1. Lift lever Figure 30 PTO Lever 1. 2. 3. 4. 5. 6. 7. The PTO lever (Fig. 30) 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. The only time PTO lever should be in the ON position is when implement or cutting unit is down in operating position.
Seat Adjusting Lever Note: Move throttle to 1/2 throttle position when restarting a warm engine. To adjust standard seat, push lever (Fig. 31) backward and slide seat to the desired position. Release lever to lock seat in place. The suspension seat may be adjusted forward or rearward by pulling out the lever at the left side of the seat, sliding the seat to the desired position, and releasing the lever. The weight adjustment knob may be adjusted for any operator’s comfort. 5.
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. 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. 34) Lift arm pivots (Fig. 34) Right and left push arm ball joints (Fig. 34) Figure 35 Push arm pivot bushings (Fig. 35) PTO pivot housing blocks (Fig. 36) 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. 42) shows red or every 400 hours (more frequently in extreme dusty or dirty conditions). Do not over service air filter. Figure 38 1 (2) (4) Figure 42 1. Air cleaner indicator • Be sure cover is sealing around air cleaner body. (2) Figure 39 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. 44). Cleaning of the used element is not recommended due to the possibility of damage to the filter media.
Servicing Fuel System 4. Install filter canister by hand until gasket contacts mounting surface, then rotate an additional 1/2 turn. Note: Refer to Fill Fuel Tank With Diesel Fuel for proper fuel recommendations. 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. 1 • Use a funnel and fill the fuel tank outdoors, in an open area, when the engine is off and is cold.
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. 49).
Cooling Fan Belt Level of coolant in expansion tank (Fig. 52) 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. 54). 1 Figure 52 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. 54). 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. 57) 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 6. Because the wheel is rotating, the pump plate must be adjusted. But before adjusting the pump plate, move throttle to SLOW. If wheel is rotating forward, loosen capscrews, and lightly tap bottom of pump plate counterclockwise (Fig. 59). By contrast, tap pump plate clockwise if wheel is rotating backward (Fig. 59). When wheel stops rotating, tighten capscrews holding pump plate against side of transmission.
4. To adjust, hold head of adjusting screw with wrench (under PTO actuating arm) and turn locknut (Fig. 61). 3. Remove boot from button end of PTO switch (Fig. 60). Retain boot for reinstallation. Separate switch wire connectors. 5. Move PTO lever to OFF position and install instrument cover. 3 1 2 Figure 60 1 1. PTO switch 4. Remove front jam nut securing switch to mounting bracket and remove switch. Figure 61 1. 3-3/16 in. (81 mm) 2. PTO actuating arm 5.
5. Connect a continuity tester or ohm meter to switch harness connector. With parking brake engaged, the switch circuit should not have continuity. If there is continuity, recheck switch or switch installation. Adjusting the Tilt Steering Control If steering wheel tilt control lever must be adjusted, proceed as follows: 1 1. Remove knob from parking brake and self tapping screws from steering column cover. Slide cover up steering shaft to expose pivot bracket (Fig. 63). 3 2 Figure 64 1. Ball joint 2.
Adjusting Steering Stops (Models 30627 & 30631 only) The rear axle steering stops help prevent over travel of the steering cylinder in case of impact on rear wheels. The stops should be adjusted so there is .090 inch clearance between the bolt head and the knuckle on the axle when the steering wheel is completely turned left or right. 1. Thread the bolts in or out until the .090 inch clearance is attained (Fig. 66). 5 2 1 4 3 1 Figure 67 1. Dust cup 2. Cotter pin 3. Nut retainer Figure 66 1.
1. To reduce free travel of turn pedals—tighten the brakes—loosen front nut on threaded end of brake cable (Fig. 68). 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 69 1. Slot 6. Using a brake adjusting tool or screwdriver, rotate star nut (Fig. 69) down until brake drum (Fig. 70) locks because of outward pressure of brake shoes (Fig. 70). 1 2 Figure 68 1. Jam nuts 2.
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. 72). 7. Remove dipstick from axle filler tube (Fig. 73) 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 74 9.
Changing Bidirectional Clutch Lubricant Fuses The fuse block is located below control panel. (Models 30627 & 30631 only) After every 400 hours of operation, the oil in the bidirectional clutch must be changed. 1. Position the machine on a level surface. 2. Clean area around check plug on bidirectional clutch. 3. Rotate clutch so check plug is positioned downward (Fig. 76). 2 2 1 Figure 77 1. Fuse block 2. Accessory connector 1 Servicing the Battery Figure 76 1. Bidirectional clutch 2.
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 50 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 R 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.
