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Parts List & Operating Instructions
CAUTION: To prevent personal injury, release pump pressure and disconnect the hose from the pump before making
repairs.
Repairs must be performed in a dirt-free environment by qualified personnel who are familiar with this equipment. If the
following solutions do not remedy the problem, take the product to an authorized service center for repair.
Problem
Pump loses pressure
Pump not delivering fluid
Pump does not reach rated
capacity
Pump handle has a "spongy" feel
Ram piston will not extend
Ram piston extends only partially
Ram piston extends slower than
normal
Ram does not hold pressure
Ram leaks hydraulic fluid
Ram will not retract or retracts
slower than normal
Troubleshooting
Cause
1. System components leaking.
1. Low fluid level in reservoir.
2. Seats are worn.
1. Low fluid level in reservoir.
2. System components leaking.
3. Fluid leaking past inlet or outlet
checks.
1. Air trapped in system.
2. Too much fluid in reservoir.
1. Loose couplers.
2. Low fluid level in pump reservoir.
3. Ram seals leaking.
1. Low fluid level in pump reservoir.
2. Load is above capacity of system.
1. Loose couplers.
2. Restricted hydraulic line or fitting.
3. Pump not working correctly.
4. Ram seals leaking.
1. Leaky connection.
2. Ram seals leaking.
3. Pump or valve not working correctly.
1. Worn or damaged seals.
2. Loose connection.
1. Pump release valve closed.
2. Loose couplers.
3. Blocked hydraulic lines.
4. Weak or broken retraction springs.
5. Ram damaged internally.
6. Pump reservoir too full.
Form No. 578089
Solution
1. Repair or replace as necessary.
1. Check fluid level.
2. Repair seats or replace pump body.
1. Check fluid level.
2. Repair or replace as necessary.
3. Repair inlet or outlet checks, or replace
high pressure piston seal.
1. Refer to Bleeding Air from the System.
2. Check fluid level.
1. Tighten couplers.
2. Fill and bleed the system.
3. Replace worn seals. Look for excessive
contamination or wear.
1. Fill and bleed the system.
2. Use correct equipment.
1. Tighten couplers.
2. Clean and replace if damaged.
3. Repair or replace as necessary.
4. Replace worn seals. Look for excessive
contamination or wear.
1. Clean, reseal with thread sealant, and
tighten connection.
2. Replace worn seals. Look for excessive
contamination or wear. Replace
contaminated fluid.
3. Repair or replace as necessary.
1. Replace worn seals. Look for excessive
contamination or wear. Replace
contaminated fluid.
2. Clean, reseal with thread sealant, and
tighten connection.
1. Open pump release valve.
2. Tighten couplers.
3. Clean and flush lines.
4. Send to service center for repair.
5. Send to service center for repair.
6. Drain fluid to correct level.
Sheet No.
3 of 3
Issue Date: Rev. B, August 15, 2017
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