Troubleshooting; Parts - Craftsman 50136 Operator's Manual

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: 50136
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.
PARTS ARE ONLY AVAILABLE IN ASSEMBLIES (except Saddle)
Key Description
1 Saddle
2 Handle Assembly
3 Front Wheel
4 Handle Socket Assembly
5 Rear Caster Assembly
6 Power Unit Assembly
— 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

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
valve and remove oil filler plug, pump
handle several times to expel trapped
air. Replace oil filler plug.
• Ensure proper fluid level
1
7
Corrective Action
4
6
2
5
3
FIG. 5