4-30 Inspection, Maintenance and Adjustment
022-00028AE Operation and Maintenance Manual
HYDRAULIC FULL FLOW FILTER REPLACEMENT
NOTE:
Replace hydraulic full flow filter after first 50 hours of operation and every 250 Hours
thereafter.
1.
Loosen breather cap on hydraulic
reservoir. (See Figure 11 on page 4-10).
2.
Clean filter cover (2, Figure 55) and
reservoir around cover.
3.
Remove bolts (1, Figure 55) from cover
(2).
4.
Lift cover (2, Figure 55) and O-ring (4) off
reservoir. Control spring (3) that sits
beneath cover. Remove spring (3).
5.
Remove valve (5, Figure 55) and filter
element (6) from reservoir.
6.
Clean underside of cover (2, Figure 55).
7.
Set a new element (6, Figure 55) and valve
(5) down into reservoir. Press element
down onto its base until top of element is
approximately 4 mm (0.157") below edge
of reservoir.
8.
Install a new O-ring (4, Figure 55) on cover
(2). Set spring (3) into place on element
(6).
9.
Set cover (2, Figure 55) into place over
element (6). Install bolts (1) through cover
(2) and tighten them.
10.
Tighten breather cap on reservoir.
WARNING!
The hydraulic oil will be hot after normal machine operation. Allow system to cool before
attempting to service any of the hydraulic components.
The hydraulic tank is pressurized. Loosen hydraulic oil fill cap slightly to allow pressurized air to
vent. After pressure has been released, it is safe to remove either the fill cap or service covers or
drain water from the tank.
IMPORTANT
Make sure to clean any dirt or water from top of the hydraulic tank, especially around fill port and
filter ports.
Figure 55
