Operating Instructions
Form No. 105001
OPERATOR TROUBLESHOOTING GUIDE
If this guide does not resolve your pump problem,
contact an authorized hydraulic service center or a company headquarters listed on back sheet 5 of 5.
Pump will continue to run slowly
even after desired pressure is
reached.
Excess oil spray from muffler.
1. Output pressure equal to or
higher than relief valve setting.
2. Defective 3-way/4-way valve or
other components leaking.
1. Air lubricator is set too rich (if so
equipped).
1. Normal operation.
2. Repair or replace.
1. Set at one drop per minute.
Pump reciprocates but no fluid
delivery (cylinder will not extend)
Low fluid delivery (cylinder
extends slowly)
Pump will not build to maximum
pressure (no visible leakage)
Pump builds pressure but will not
hold system pressure
1. Low fluid level.
2. Pump not primed.
3. Fluid intake filter contaminated.
1. Inadequate air supply
a. Check air input supply.
b. Contamination, check air side
of pump (plugged air inlet
screen).
2. Hydraulic failure
a. Check the fluid inlet filter for
contamination.
b. Air in hydraulic system.
1. Check the air supply.
2. Pressure regulator improperly
adjusted (if so equipped).
1. Check the hydraulic connections
and other system components
for leakage, including 3 way/4
way valve (if so equipped).
1. Add fluid as instructed in
Preventive Maintenance section.
2. Prime pump as instructed in
Operation section.
3. Remove reservoir and clean
intake filter and reinstall.
1. a. Should be 20 CFM
(.57 M
3
/min.) minimum.
b. Clean and reassemble.
2. a. Remove reservoir and clean
intake filter and reinstall.
b. Bleed the system as
described in the Preventive
Maintenance section.
1. 100 PSI (7 BAR) is required to
obtain maximum pressure.
2. Adjust according to instructions
in Operation section.
1. Refit or repair as needed.
PROBLEM
CAUSE
SOLUTION
Sheet No.
5 of 5
Rev. 3
Date: 30 April 2003
