Advertisement
Symptom
Jack does not lift load
Jack bleeds off
(starts to lower) after lift
Jack does not lower after
unloading
Poor lift performance
Does not lift to full
extension
MODEL NUMBER: 50138
The Model Number and Serial Number are found on the lifting arm and handle socket
respectively. Always mention the Model Number and Serial Number when requesting service
or repair parts for your jack.
INDIVIDUAL PARTS ARE NOT AVAILABLE FOR REPLACEMENT ASSMBLIES
Key
Description
1
Saddle
2
Power Unit Assembly
3
Handle Assembly
4
Front Wheel Assembly
5
Rear Castor Assembly
6
Cover Plate
7
Oil Filler Plug
—
Operators Manual
––
Warning Label
Call 8:00 AM - 4:45 PM CST., Monday - Friday 1-888-332-6419
TROUBLESHOOTING
PROBLEM-SOLVING HINTS
Possible Causes
• Release valve not tightly closed
• Overloaded - too much weight on jack
• Release valve not tightly closed
• Hydraulic unit malfunction
• Oil reservoir overfilled
• Linkages binding
• Fluid level low
• Air trapped in system
• Fluid level low
PARTS
6
For after sale support and assistance:
• Ensure release valve is tightly closed
• Reduce weight on jack
• Ensure release valve is tightly closed
• Replace power unit assembly
• Drain fluid to proper level
• Clean and lubricate moving parts
• Ensure proper fluid level
• With ram fully retracted, open release
• Ensure proper fluid level
7
2
3
7
Corrective Action
valve, pump handle several times to
expel trapped air
5
1
4
FIG. 3
Hide quick links:
Advertisement
