Section 6: Maintenance & Lubrication
HRS3025 Hydraulic Reservoir System 316-271M
1/16/20
32
Hydraulic Fluid and Filter Maintenance
Figure 6-1
Replace Filter Element
Refer to Figure 6-1:
Replace filter element (#8) after every 75 hours of
operating or if contamination occurs.
1. Place a drip pan under filter head (#6) to catch spilled
hydraulic fluid.
2. Unscrew filter element (#8) and drain fluid from filter
element. Dispose in a manner compatible with the
environment.
3. Clean filter head (#6).
4. Replace oil filter with a conventional 10 micron
filter (#8) and O-ring (#9). Coat O-ring with clean
hydraulic fluid. Do not use grease.
5. Hand tighten oil filter (#8) until O-ring seats. Finish
tightening by turning oil filter another 1/2 of a turn.
Change Hydraulic Fluid
Refer to Figure 6-1:
Change hydraulic fluid every 150 operating hours or after
2 years of service, whichever comes first.
1. Place a container capable of holding 35 gallons
under drain plug (#1).
2. Remove drain plug and fill cap (#7).
3. Allow hydraulic fluid to completely drain from unit and
then replace drain plug. Tighten plug.
4. Fill reservoir with 35 gallons of Mobil Fluid 424. See
Important Note on left side of this page.
5. When full, replace fill cap (#7) and tighten.
35635
Hydraulic Pump
Refer to Figure 6-1:
1. Always use a clean cloth to wipe couplers (#4 & #5)
and attachment couplers (not shown) clean before
attaching hydraulic hoses to the attachment.
2. Make sure lever on ball valve (#3) is
OPEN
(handle
turned in-line with valve as shown).
3. Operate hydraulic pump at full 540 rpm and check oil
filter, hose connections, and hoses for leaks. Never
check high pressure leaks with hands or other body
parts. Use cardboard or wood to check leaks.
4. If oil filter has a slight leak, shutdown system and
then tighten oil filter (#8) an additional 1/4 turn.
5. Make necessary repairs before putting Hydraulic
Reservoir System into operation.
IMPORTANT:
Ball valve (#3) must be open as
shown during pump operation or damage will occur.
