SECTION 10
RECIRCULATION SYSTEM
Page 10-8
49836026
Replace Hydraulic Oil
1. Drain the tank, by connecting the inlet hose of the oil transfer pump to the
drain valve. Open valve and pump oil to container.
2. Close hand valve, remove oil transfer pump inlet hose from hand valve.
NOTE
Never assume a new drum of oil is free of damaging contaminants.
Typically, oil from a new drum does not meet the hydraulic system
cleanliness requirements. For this reason it is important to use the oil
transfer pump, which forces oil through the return filter into the tank.
3. Remove cap from fill port.
4. Connect oil transfer pump discharge to fill port. This will assure clean
filtered oil is pumped into the tank.
Oil must be filtered through an equivalent filter such as a
10 micron filter element. Failure to do so will cause
damage to the primary hydraulic components, voiding the
warranty.
5. Check oil sight gage to assure proper fill level. Remove hose, cap fill port.
6. Remove the plug of the main hydraulic pump case and make sure the case
fills with oil. With the plug removed, head pressure from the tank (reservoir)
will force oil into the pump case.
7. Run pump following initial start-up procedure. This will assure the system
is filled.
8. Check oil sight gage. Add oil if necessary.
9. Disconnect oil transfer pump discharge hose, install fill port cap.
Failure to fill the pump case with oil will damage the pump
due to air becoming trapped inside.
CAUTION
!
CAUTION
!
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