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4. Pivot the oil cooler back into position. Secure it to the
frame with the knobs and close the hood.
Servicing the Alternator Belt
Check the condition and tension of the belts (Fig. 52) after
every 100 operating hours.
1. Proper tension will allow 3/8 in. (10 mm) deflection
when a force of 10 lb. is applied on the belt midway
between the pulleys.
2. If the deflection is not 3/8 in. (10 mm), loosen the
alternator mounting bolts (Fig. 52). Increase or decrease
the alternator belt tension and tighten the bolts. Check
the deflection of the belt again to ensure that the tension
is correct.
2
Figure 52
1. Alternator
Adjusting the Throttle
Adjust the throttle cable (Fig. 53) so that the governor lever
on the engine contacts the low and high speed set bolts
before the throttle lever contacts the slot in the control
panel.
Figure 53
1. Throttle cable
1
2. Mounting bolt
1
40
Servicing the Spark Arrestor
Muffler
Every 200 hours operation, clear the muffler of carbon
buildup.
1. Remove the pipe plug from the clean-out port at the
lower side of the muffler.
Caution
The muffler may be hot and could cause injury.
Be careful while working around the muffler.
2. Start the engine. Plug the normal muffler exit with a
block of wood or metal plate so that the exhaust flow
will be forced out of the clean-out port. Continue to
block the exit until carbon deposits cease coming out of
the port.
Caution
Do not stand in line with the clean-out port.
Always wear safety glasses.
3. Stop the engine and replace the pipe plug.
Changing the Hydraulic Fluid
Change the hydraulic fluid after every 800 operating hours,
in normal conditions. If the fluid becomes contaminated,
contact your local Toro distributor because the system must
be flushed. Contaminated fluid looks milky or black when
compared to clean oil.
1. Turn the engine off and raise the hood.
2. Loosen the drain valve on the bottom of the reservoir
and let the hydraulic fluid flow into large drain pan.
Close the valve when the hydraulic fluid stops draining.
3. Fill the reservoir (Fig. 54) with approximately 8 gallons
(30 l) of hydraulic fluid; refer to Checking the
Hydraulic Fluid, page 16.
Important
Use only the hydraulic fluids specified.
Other fluids could cause system damage.
4. Install the reservoir cap. Start the engine and use all of
the hydraulic controls to distribute hydraulic fluid
throughout the system. Also check for leaks; then stop
the engine.
5. Check the fluid level and add enough to raise level the
level to the FULL mark on the dipstick. Do not overfill.
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