Cooling System Maintenance; Cleaning The Cooling Systems; Belt Maintenance; Replacing The Transmission - Toro 30187 Operator's Manual

2. Start engine and run for 5 minutes at 3/4
throttle, to warm hydraulic fluid
3. Move control bar rearward and forward then
release. If wheels rotate when control bar is in
neutral, adjustment is required.
4. Loosen top and bottom jam nuts at pump arm
neutral adjustment sleeve (Figure 34).
5. Push down on Pump Arm until Sleeve contacts
bottom nut (Figure 34). Wheel should now be
rotating slowly in reverse.
6. Turn bottom nut up slowly, moving sleeve
and pump arm up, until wheel stops rotating
(Figure 34).
7. Turn top nut down against sleeve and tighten
to lock the adjustment (Figure 34).
8. Repeat step 3 above to check adjustment.
Repeat the adjustment procedure if necessary.
9. Repeat for other wheel, if necessary.
Figure 34
1. Top jam nut
2. Sleeve
Cooling System
Maintenance
Cleaning the Cooling
Systems
Before each use, check and clean hydraulic and
engine cooling systems. Remove any build-up
of grass, dirt or other debris from the oil cooler
screen and engine air intake. Every 100 hours
3. Bottom jam nut
4. Pump arm
clean oil cooler, engine cylinder and cylinder
head cooling fins. Also clean around carburetor,
governor levers and linkage. This will help insure
adequate cooling to hydraulic pumps, motors
and engine and will reduce the possibility of
overheating and mechanical damage.
1. Remove oil cooler from the engine (Figure 35).
Save all mounting hardware.
2. Blow out fins of oil cooler and area between
fins and screen with compressed air. If area
between screen and fins is tightly packed,
remove oil cooler from screen. Removing two
retaining screws. Save all mounting hardware
(Figure 35).
3. Clean off engine air intake.
4. Install oil cooler onto engine with the
previously removed hardware (Figure 35).
Figure 35
1. Oil cooler screen
2. Oil cooler retaining screw

Belt Maintenance

Replacing the Transmission

Belt

1. Disengage the PTO, stop the engine, remove
the key, and wait for all moving parts to stop
before leaving the operating position.
2. Remove PTO drive belt. Refer to Replacing
the PTO Drive Belt in theBelt Maintenance,
page 34.
3. Raise the front of the machine and hold with
jack stands.
34
3. Engine air intake