34
4 MAINTENANCE
4. 6B Filter Replacement
The hydraulic filter must be changed after the first 50
hours of operation and every 150 hours thereafter.
To change the filter; set the parking brake, lower the boom
arms, ground any attachment and shut off the engine.
Remove the oil filter. Lubricate the seal of the new filter
and install hand tight.
4. 6C Draining System Fluid
Change the hydraulic oil after 1000 operating hours or if
the oil has become contaminated or after any major
hydrostatic repair.
To drain the oil; remove the drain plug located at the
bottom of the oil reservoir (Fig. 4. 6C) on the L.H. side.
Refill the hydraulic oil reservoir with 10W30 API Classi-
fication SE/CD engine oil only.
4. 7 ENGINE MAINTENANCE
4. 7A Oil Level Check
To check the oil level, stop the engine with the loader on
level ground, set parking brake and open the rear door and
remove the dipstick (Fig. 4. 7A).
Keep the oil level between the full and low mark on the
dipstick (Fig. 4.7B). Do no fill above the full mark – use
10W30 API classification SE/CD oil.
4. 7B Engine Oil and Filter Replacement
Operate the engine until warm. Stop the engine.
Remove the oil drain plug located at the bottom of the oil
pan.
Remove the oil filter. Clean the filter housing surface. Put
clean oil on the seal of the new filter. Install the new filter
and tighten hand tight.
Replace the oil drain plug. Remove the filler cap and add
oil. See specifications for quantity. Start the engine and
run for 5 minutes. Stop the engine and check for leaks at
the filter. Recheck the oil level and add oil until the level
is at the top mark on the dipstick. Change the engine oil
every 75 hrs. and the oil filter every 150 hrs. as indicated
in the service schedule.
4. 7C Cooling System Fluid
The engine cooling system fluid is a 50 - 50 mixture of
ethylene glycol and water for cold-weather protection. See
specifications for quantity.
To drain the cooling system; remove the radiator cap,
open the drain valve located on the base of the radiator.
WARNING
To avoid personal injury:
DO NOT remove the
radiator cap when the
engine is hot.
OIL RESERVOIR
DRAIN
C-957
Fig. 4. 7A
C-642P
Fig. 4. 7B
OIL DIPSTICK
Fig. 4. 6C
C-954
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