Gehl RS6-34 - General Information; Mandatory Safety Shutdown Procedure; Cylinder Disassembly Steps

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RS Series Handler CYLINDER REPAIR
GENERAL INFORMATION
Except for some configuration differences, hydraulic
cylinder disassembly, repair and assembly
procedures will be basically the same for the tilt
cylinder, frame leveling cylinder, boom lift cylinder,
boom slave cylinder and boom extend cylinder.
Except where noted differences or procedures are
required for special application cylinders, use the
following repair procedures for hydraulic cylinders.
When backup rings are used with O-ring seals,
always note the position of the backup ring (above or
below the O-ring) when removing the seals for
reassembly reference.
One-piece Nylatron® type piston seals can be
difficult to install on the piston. Soaking these seals in
hot water for a short time prior to installation will
make the seals more flexible and easier to install on
the piston.
Before installing the piston and rod assembly into the
cylinder barrel, lubricate the piston seals and wear
rings liberally with clean hydraulic fluid. Using an
engine piston ring compressor to compress the
piston seals tightly for a short period of time will often
aid in the assembly procedure.
MANDATORY SAFETY SHUTDOWN
PROCEDURE
BEFORE cleaning, adjusting, lubricating, or
servicing this unit:
1. Stop machine on a level surface. (AVOID parking
on a slope, but if necessary, park across the
slope and block the tires.)
2. Fully retract the boom and lower the attachment
tool to the ground. Idle engine for gradual
cooling.
3. Place controls in neutral and apply parking
brake.
4. Shut off the engine and remove the key.
ONLY when you have taken these precautions
can you be sure it is safe to proceed. Failure to
follow the above procedure could lead to death or
serious personal injury.
CYLINDER DISASSEMBLY
STEP 1
G0805123
Select a clean environment. Remove the counter-
balance valve slowly to relieve any residual pressure.
G1562MP
NOTE: The cartridges (1) for the frame leveling
cylinder are located in different areas.
WARNING
When disassembling hydraulic cylinders,
NEVER use pneumatic or hydraulic pressure
to aid in removing the piston and rod
assembly from the cylinder barrel. Ignoring
this warning may result in severe injury or
death.
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