Crosshead Rollers - Inspect - Doosan D35S-9 Operation & Maintenance Manual

Cylinder Rod Extension
NOTE: The following description is for forward tilt. For
cylinder rod back tilt, the collar should be
stationary by the tilt eye. If it is not, the O-ring
inside the collar may need to be replaced. To
adjust back tilt, spacers must be added or
removed.
Typical Example
1. Check the tilt cylinders to make sure they extend and
retract evenly.
2. If one cylinder continues to move after the other
cylinder has stopped in full forward or backward tilt,
an adjustment must be made to one cylinder.
Typical Example
3. To adjust the cylinder rod extension, move the
spacer to the rear and loosen the pinch bolt on the
clevis.
4. Turn the cylinder rod in or out of the clevis to obtain
the proper adjustment. Turning the rod into the clevis
shortens the stroke. Turning the rod out of the clevis
lengthens the stroke. When turning for extending rod,
the overlapped length between clevis's thread and
cylinder rod must be minimum 32 mm
5. Tighten the pinch bolts to a torque of 95 ± 15 N·m (70
± 10 lb·ft). Check the cylinder rods again for even
travel.

Crosshead Rollers - Inspect

1. Operate the mast through a lift cycle. Watch the
chains move over the crosshead rollers. Make sure
the chain is tracking over the rollers properly.
Typical Example
2. Check for damaged crosshead rollers, guards and
retainer rings.
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Maintenance Section