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Troubleshooting; Parts - Craftsman 50145 Speedy Lift Operator's Manual

3-1/2 ton capacity floor jack
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Symptom
• Release valve not tightly closed
Jack will not lift load
• Overloaded - too much weight on jack
• Release valve not tightly closed
Jack bleeds off
(starts to lower) after lift
• Hydraulic unit malfunction
Jack will not lower after
• Oil reservoir overfilled
unloading
• Linkages binding
• Fluid level low
• Air trapped in system
Poor lift performance
Will not lift to full
extension
MODEL NUMBER: 50145
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

Parts

Description
1
5955
Saddle
2
5954
Power unit assembly
3
5952
Jack handle assembly
4
5951
Front wheel assembly
5
5953
Jack handle gear assembly
6
5956
Rear wheel assembly
-
5957
Owners manual

TROUBLESHOOTING

PROBLEM-SOLVING HINTS
Possible Causes
• Fluid level low
PARTS
6
Corrective Action
• 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, pump handle several
times to expel trapped air
• Ensure proper fluid level
2
1
4
FIG. 5
3
5
6

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