Figure 2 - Pump and Ram Components
4
- KNOW YOUR PRODUCT -
TROUBLESHOOTING
Symptom
Possible Causes
Corrective Action
Ram will not extend
Ram *bleeds off after extending
Will not lift to full extension
•
Release valve not tightly closed
•
Overload condition
•
Hand pump fluid level low
•
Hand pump fluid level low
•
Air trapped in hand pump system
•
Release valve not tightly closed
•
Hydraulic unit malfunction
•
Ensure release valve tightly closed
•
Remedy overload condition
•
Ensure release valve tightly closed
•
Contact Service Center
•
Ensure proper fluid level
•
Ensure proper fluid level
•
With ram fully retracted, remove oil filler
screw to let pressurized air escape, then
reinstall oil filler screw
Poor performance
•
Hand pump reservoir overfilled
•
Ram damaged
•
Drain fluid to proper level
•
Replace ram
* "Bleeds off" means that ram begins to slowly retract rather than maintain position.
Ram will not lower after un-
loading
Oil Filler
Screw
Handle
Release Valve
Plunger
Hose
Hose
Coupler
Ram Coupler
Ram
Dust Cover
Gauge
Model
Pump
Capacity
Ram
Capacity
Ram
Number of
Attachments
Closed Height
Extended Height
YA1544A
8,000 psi
4 Ton
10-3/4”
15-5/8”
14
YA1545
10,000 psi
10 Ton
13-3/4”
19-3/4”
13
