23
0.030 in.
(0.76 mm)
Figure 21
Cleaning the Cylinder Head
Fins
To avoid overheating and possible engine damage, the
cooling fins on the cylinder head must be kept clean.
Changing the Hydraulic
System Oil and Filter
The hydraulic system filter must be changed initially, after
the first 8 hours of operation, and thereafter every 400
hours of operation or yearly, whichever occurs first. Use a
genuine Toro oil filter for replacement. The hydraulic oil
must be changed every 400 hours of operation or yearly,
whichever occurs first.
1. Park the machine on a level surface and turn the engine
off.
2. Remove screws securing side panels from right and left
sides of machine and remove panels.
Note: Place a funnel or trough under drain plug (Fig. 22),
to direct oil into drain pan and prevent hydraulic oil from
running onto machine components.
1
Figure 22
1. Hydraulic reservoir drain
plug
3. Remove drain plug from reservoir and let hydraulic oil
flow into drain pan. Reinstall and tighten plug when
hydraulic oil stops draining.
4. Clean area around filter mounting area. Place drain pan
under filter and remove filter.
1
Figure 23
1. Hydraulic filter
5. Lubricate the sealing gasket,on replacement filter with
hydraulic fluid, and hand turn it on until gasket contacts
filter head. Then tighten 3/4 turn further. Filter should
now be sealed.
6. Fill hydraulic tank with hydraulic oil until level is up to
top of cone point on tank screen. DO NOT
OVERFILL. Refer to CHECK HYDRAULIC
SYSTEM, Page 11.
7. Run engine until lift cylinder extends and retracts and
forward and reverse wheel motion is achieved.
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