33
2. If deflection exceeds 1/4 in. (6 mm), loosen alternator
mounting bolts. Adjust alternator belt tension by
adjusting tension screw (Fig. 45). Check deflection of
belt again to assure tension is correct.
1
2
Figure 45
1. Fan belt 2. Adjusting screw
Checking the Engine Timing
Belt
Inspect engine timing belt every 800 hours of operation or
yearly.
Remove covers and check for worn, cracked, or oil soaked
belt.
Note: A new belt should be installed any time belt is
removed or loosened.
Changing the Hydraulic Oil
Change hydraulic oil filter initially after the first 50 hours
of operation, thereafter change hydraulic oil and filter after
every 800 operating hours. If oil becomes contaminated,
contact your local Toro distributor because the system must
be flushed. Contaminated oil looks milky or black when
compared to clean oil.
1. Turn engine off, release hood latch, and raise hood.
2. Remove drain plug from rear of reservoir and hydraulic
line from front of reservoir (Fig. 46) and let hydraulic
oil flow into drain pan. Reinstall and tighten plug and
line when hydraulic oil stops draining.
3. Fill reservoir with approximately 6.5 gallons (24.6 l) of
hydraulic oil; refer to Checking the Hydraulic Circuit
Oil, page 12.
Important Use only hydraulic oils specified. Other
fluids could cause system damage.
1
Figure 46
1. Hydraulic reservoir drain
4. Install reservoir cap, lower hood, and latch. Start engine
and use all hydraulic controls to distribute hydraulic oil
throughout the system. Also check for leaks. Then stop
the engine.
5. With wing decks raised, center deck down and oil
warm, look into sight gauge (Fig. 47). If hydraulic oil is
not visible, add enough oil to raise level to middle
(maximum) of sight gauge. To prevent over filling, do
not fill if oil is cold. Do not overfill.
1
Figure 47
1. Sight gauge
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