Durapac P-2800, Instruction Manual

Page: 10 / 12

Instruction Manual
P-2800 & P-2800D Hand Pumps - V1.1 www.durapac.com Page 10 of 12
7.0 Troubleshooting
Problem Cause Solution
Pump loses pressure Leaking system components

Repair or replace as
necessary
Pump not delivering
fluid Low fluid level in reservoir

Check fluid level
Worn seats

Repair seats

Replace pump body
Pump does not reach
rated capacity Low fluid level in reservoir

Check fluid level
Leaking system components

Repair or replace as
necessary
Fluid leaking past inlet or outlet
checks

Repair inlet or outlet checks

Replace high pressure piston
seal
Pump handle has a
“spongy” feel Air trapped in system

Refer to 6.2 - Bleeding Air
from the System
Too much fluid in reservoir

Check fluid level
Cylinder piston will not
extend (or retract for P-
2800D model) Loose couplers

Tighten couplers
Low fluid level in pump reservoir

Fill and bleed the system
Leaking cylinder seals

Replace worn seals. Look for
excessive contamination or
wear
Cylinder piston extends
(or retracts for P-2800D
model) only partially Low fluid level in pump reservoir

Fill and bleed the system
Load above capacity of system

Use correct equipment
Cylinder piston extends
(or retracts for P-2800D
model) slower than
normal Loose couplers

Tighten couplers
Restricted hydraulic line or fitting

Clean and replace if damaged
Pump not operating correctly

Check pump’s operating
instructions

Repair or replace as
necessary
Low fluid level in pump reservoir

Fill and bleed the system
Cylinder does not hold
pressure Leaky connection

Clean, reseal with thread
sealant, and tighten
connection
Leaking cylinder seals

Replace worn seals. Look for
excessive contamination or
wear. Replace contaminated
fluid
Pump or valve not operating
correctly

Repair or replace as
necessary
Cylinder will not retract
or retracts slower than
normal Closed pump release valve

Open pump release valve
Loose couplers

Tighten couplers
Blocked hydraulic lines

Clean and flush lines
Weak or broken retraction springs

Send to a Durapac authorised
service centre for repair
Internally damaged cylinder

Send to a Durapac authorised
service centre for repair
Pump reservoir too full

Drain fluid to correct level