Oil filter
•
Remove the oil filter and discard. Thoroughly clean
the housing and install a new filter.
Intensifiers
•
Remove the intensifier(s) from the frame.
•
Completely disassemble the intensifier. Inspect for seal
failure and replace parts as needed. Completely clean
the intensifier. Refer to your intensifier manual for
instructions.
Service continues
3. Reassemble the hydraulic system.
4. Fill the hydraulic oil reservoir until oil is visible in
the sight gauge (recommended oils are listed in
Chapter 1).
CAUTION
You must add oil to the reservoir
AND the
hydraulic pump case(s) before operating the
pump or you will SEVERELY damage the system.
5. Operate the pump at low pressure 3–5 minutes
while checking for leaks. Increase the pressure to
high pressure; continue checking for leaks.
Note: After servicing the hydraulic system, the oil
level may be low. Check the reservoir oil level and
add oil as needed.
6. After operating the pump for 7–10 minutes and all
work is satisfactory, shut down the pump.
Remove tools, parts, and rags from the equipment. Re
-
move the Out of Service tag from the main electrical
disconnect. The pump can be returned to operation.
After operating the pump with fresh oil for 10–
20 hours, drain the reservoir and refill with fresh hy
-
draulic oil. Replace the oil filter.
© Flow International Corporation M-390 | 47
CHAPTER 5
Servicing the Pump
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