Service and Repair Manual
November 2016
Scissor Components
30
GS-2669 DC • GS-3369 DC • GS-4069 DC
Part No. 1272220GT
3-5 Lift Cylinders
3-5
Lift Cylinders
The lift cylinders are single acting hydraulic
cylinders. The GS-2669 and GS-3369 uses one lift
cylinder; the GS-4069 uses two. Each lift cylinder is
equipped with a check valve to prevent movement
in the event of a hydraulic line failure.
How to Remove the Lift Cylinder
GS-2669 DC and GS-3369 DC:
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1
Remove the platform. Refer to Repair
Procedure,
How to Remove the Platform
.
2
Disassemble the scissor assembly. Refer to
Repair Procedure for your model,
How to
Disassemble the Scissor Assembly
.
GS-2669 DC and GS-3369 DC
1 solenoid valve (proportional lift models)
2 solenoid valve (2 speed lift models)
3 lift cylinder
4 pressure switch (AS/CE models)
GS-4069 DC:
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1
Remove the platform. Refer to Repair
Procedure,
How to Remove the Platform
.
