26
HYDRAULIC MAINTENANCE
CAUTION
Before servicing or making adjustments to the
machine, stop engine and remove key from
the switch.
CHANGING HYDRAULIC SYSTEM OIL &
FILTER (Fig. 30 - 29)
The hydraulic system oil and filter must be changed
initially at 200 hours and thereafter every 400 hours of
operation or seasonally, whichever comes first. The
hydraulic system is designed to operate on anti-wear
hydraulic fluid. The machines reservoir is filled at the
factory with approximately 12 quarts of high quality
hydraulic fluid. Check level of hydraulic fluid before
engine is first started and daily thereafter.
Universal Tractor Hydraulic Fluid
Mobil Mobil Fluid 424
Amoco 1000 Fluid
Chevron Tractor Hydraulic Fluid
Conoco Hydroclear Powertrain
Exxon Univis N46
Pennzoil Hydra-Tranz
Shell Donax TD
Texaco TDH
IMPORTANT: Do Not Use Biodegradable Hydraulic
Fluid.
15. Start engine, park machine on a level surface,
lower implement to the shop floor, set the parking
brake, and shut engine off.
16. Clean area around dipstick cap (Fig. 29) and
remove cap from axle filler tube.
17. To ease access to axle housing drain plug (Fig. 30),
implement may be removed from traction unit.
18. Remove drain plug from axle housing and allow oil
to flow into drain pan.
Figure 29
1. Dipstick cap
1
Figure 30
1. Drain plug
1
19. Clean area around hydraulic oil filter and remove
filter (Fig. 31).
Figure 31
1. Hydraulic Filter
1
20. Lubricate new filter seal and install filter.
21. Install drain plug in axle housing (Fig. 30).
22. Through axle filler tube, fill axle to proper level with
Mobil 424 hydraulic fluid. Install dipstick cap.
23. Start and run the engine at idle speed for about two
minutes, raise and lower implement and turn the
steering wheel lock to lock to purge air trapped in the
system. Shut the engine off.
24. Let machine set for two additional minutes, then
remove dipstick and check oil level in axle. If level is
low, add oil until level matches groove in dipstick. If
level is too high, remove drain plug and drain oil until oil
level matches Full mark on dipstick.
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