Wallenstein WP240, Operator'S Manual

Page: 49 / 60

9.5 Hydraulic System Oil and Filter
Change (Optional Power Pack only)
NOTE: This procedure is for the Wood
Processor's Optional Power Pack. Please
refer to your tractor's maintenance guide
concerning hydraulic oil and filter service
instructions.
NOTE:
The tank does not have to be drained to
clean the filter.
By following a careful service and maintenance
program, expect many years or trouble-free operation.
9.5.1 Drain and replace oil
1. Move controls to neutral or off position, stop
engine, remove ignition key and wait for all
moving parts to stop before servicing, repairing or
maintaining.
2. Allow the machine to cool before changing the oil.
Hot oil can cause burns if it contacts exposed skin.
It is best to change oil while the machine is warm
to keep the contaminants in suspension.
3.
Place a pan under the hydraulic oil reservoir drain.
4. Remove the drain plug and drain the oil.
5. Replace the drain plug.
6. Fill the reservoir with 7.1 US gal (27 L) of
Dexron III oil.
7. Operate the machine for 1–2 minutes while
operating cylinder. Check oil level. Check for leaks
at the drain.
8. Oil level should be approximately 1" (25 mm) from
the top of the tank
9. Dispose of the old or any spilled oil in an approved
manner.
Fig. 44 – Bottom view of oil reservoir
Drain Socket
Drain
9.5.2 Remove and clean the filter
1. Remove the 3 screws from the oil filter cover on the
top of the reservoir.
2. Remove the filter cover and pull out the hydraulic
oil filter.
3. Wash the filter screen with mineral spirits (Var -
sol™). Inspect the filter mesh for any holes, perfora -
tion, rust or tears.
4. Place the filter screen into the tank and secure the
filter cover.
Fig. 45 – Reservoir filler cap and filter
Filler Cap
Filter Cover
Filter
WP240-WP270
3-Point Hitch Firewood Processor
Service and Maintenance
49