PS S7.3 7310
000 OE35
Version no T-code
F-code Section C-code
Freelift Cylinder, 3 Stage
286
Service Manual 1997-12-15
The lift cylinders are the positive displacement type, meaning
there are
NO
seals on the lower end of the cylinder rod. The
lift cylinder can be resealed without removing from the truck.
1. Freelift Cylinder Repair
1.1. Removal
1. Park the truck on a level surface and apply the
brake.
2. Fully extend the cylinder to inspect the rod (7) for
gouges or pits. If gouges or pits are detected, then
the cylinder must be removed for repair.
3. Raise the cylinder rod approximately 6 inches.
Block the mast to prevent lowering.
4. Lower cylinder so the chains, hoses, and electric
cables are loose. Disconnect the battery
5. Remove chains, hoses, and electric cables from
the crosshead.
6. Remove the crosshead from the cylinder rod.
7. Clean the exterior of the lift cylinder.
NOTE! CLEANLINESS!
Perform procedures in a
clean environment. Make sure all parts are
cleaned before disassembly and kept clean
during assembly.
When blocking mast columns to prevent
lowering, always block both sides of the
column. Otherwise, the truck could tip over
on its side.
WARNING
Be extremely careful when working with
solvent. Even a small explosion or fire
could cause injury or death.
WARNING
Compressed air used for cleaning
MUST
be reduced to less than 30 p.s.i., and then
only with effective chip-guarding and
personal protective equipment.
WARNING
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