WARNING
Compressed air can move particles so that they
cause injury to the user or to other personnel.
Make sure that the path of the compressed air is
away from all personnel. Wear protective goggles
or a face shield to prevent injury to the eyes.
WARNING
Cleaning solvents can be flammable and toxic,
and can cause skin irritation. When using clean-
ing solvents, always follow the recommendations
of the manufacturer.
CAUTION
DO NOT use cleaning solvent, compressed air, or
steam to clean lift chain sheaves or load rollers.
The bearings in the lift chain sheaves and load
rollers are sealed and lubricated. Cleaning sol-
vent, compressed air, and steam can damage the
load roller bearings.
2.
Clean any oil, grease, dirt, and other debris
from carriage frame. Use a cleaning solvent and
compressed air to dry.
WARNING
Improper welding procedures can damage the
structure of the mast or cause incorrect function
of the mast. Consult a Resident Service Engineer-
ing through the Contact Management System be-
fore welding on the mast.
3.
If carriage bars have any protruding welds or
damaged notches, repair by grinding, filing, or
welding.
4.
Clean and inspect the chain anchors and chain
anchor pins. Check chain anchors and anchor
pins for wear and serviceability. Discard worn
or unserviceable chain anchors and chain an-
chor pins. Discard used cotter pins. See Fig-
ure 10.
Install
1.
Move the lift truck towards the carriage until
inner mast is aligned with carriage rollers. If
inner mast has been raised and secured using a
crane and safety chains, connect the crane,
raise inner mast, and remove safety chains.
Carefully lower inner mast until it engages all
of the load rollers. Disconnect the crane, if at-
tached, and reconnect lift cylinders. See the
Cylinder Repair manual listed in the General
section of this manual for procedures.
2.
Check the clearance of the load rollers. See Car-
riage Adjustments section for procedures.
NOTE: Use new cotter pins each time chain pins
are removed.
3.
Connect lift chains to chain anchors at the car-
riage. Install cotter pins in chain pins. Adjust
lift chains as described in Lift Chains Adjust-
ment.
4.
Install load backrest on carriage. Tighten cap-
screws to 195 N•m (144 lbf ft).
5.
Install forks. See Fork Replacement for proce-
dures.
4000 SRM 1999 Carriages Repair, Two-Stage LFL Mast
13
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