Lift Cylinder; Theory Of Operation; Maintenance; Inspection - prime mover smx45 Master Service Manual

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Lift Cylinder

1. Theory of Operation

The lift cylinders are the positive displacement type, meaning
there are NO seals on the inner end of the cylinder rod.

2. Maintenance

Inspect cylinder for leakage. Inspect cylinder rod for gouges
or pits. Fluid leakage indicates that the seal is worn. Replace
seal, wiper and lock ring when fluid leakage becomes
excessive.

2.1. Inspection

When using compressed air, wear effective
WARNING
chip-guarding
equipment.
cleaning MUST be reduced to less than 30
psi (207 kPa).
NOTE! CLEANLINESS! Perform procedures in a
clean environment. Make sure all parts are
cleaned before disassembly and kept clean
during assembly.
NOTE! Call-outs in the following procedure refer to
illustration on
1. Press red OFF button "O" on the keypad. Depress
main ON/OFF switch to the OFF position.
2. Inspect cylinder rod (2) for nicks, scratches, or
scoring. If heavy scoring is found replace cylinder
rod (2).
3. Inspect hydraulic hose and replace if worn.

3. Troubleshooting

Check cylinder for leakage.
Master Service Manual 2006-12-12
F-code Section
PT S6.1
Lift Cylinder
Version no T-code
000 SMX
and personal
Compressed air used for
page 272.
C-code
6420
protective
271