Blitz GHUSE Series - Troubleshooting and Disposal; Problem Diagnosis and Solutions

Operating Instructions for Suspended Jacks
20
8 Troubleshooting
The following lists possible problems that may occur. If an undefined malfunction occurs, contact
customer service.
Problem
Cause
Troubleshooting
Piston rod [10] gives in under
load.
•
Cylinder tube corroded,
piston boots worn or ball
valves leaking.
 Request customer service.
• Hydraulic oil contaminated.
 Change the hydraulic oil. (
7.7)
Hydraulic oil emerges at the
piston rod [10].
• Damage to the piston rod
has destroyed the seal.
 Request customer service.
Hydraulic oil emerges at the
pneumatic control valve.
• Condensate in the hydraulic
oil.
 Check hydraulic oil level (
7.5) and drain condensate, if
necessary. ( 7.9)
•
Piston boot on lift cylinder
leaking.
 Request customer service.
Control elements [2] do not
return to the initial position.
•
Contamination.
 Clean or replace pneumatic
control valve.
(

7.11)
Air emerges at the pneumatic
control valve.
• Contamination, damage or
defective seal.
 Clean or replace pneumatic
control valve.
( 7.11)
Problem
Cause
Troubleshooting
Jack does not provide full
lifting force.
•
Supply pressure too low.
 Check supply pressure. (

4.3)
•
Load not centered.
 Position load centered.
Piston rod [10] gives in under
load.
• Cylinder tube corroded,
piston boots worn or
pneumatic control valve
leaking.
 Request customer service.
Piston rod [10] moves up or
down by itself.
• Pneumatic control valve
leaking.
 Replace pneumatic control
valve. ( 7.11)
Control elements [2] do not
return to the initial position.
• Contamination.
 Clean or replace pneumatic
control valve.
( 7.11)
Air emerges at the pneumatic
control valve.
• Contamination, damage or
defective seal.
 Clean or replace pneumatic
control valve.
( 7.11)
9 Decommissioning and Disposal
 Drain hydraulic oil. ( 7.7)
 Disassemble the jack. (4.2)
 Correctly dispose of hydraulic oil and lift.
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