BT OE35, Service Manual

Page: 264 / 332

PS S7.0 7110
001 OE35
Version no T-code
F-code Section C-code
Mast, 2 Stage
262 Service Manual 1996-10-15
6. Remove cap screw on top of inner column which
secures lift cylinder. Once column is lifted with
hoist, the lift cylinder is free to move or fall. Secure
lift cylinder in place.
7. Determine the number of shims required by prying
inner column to one side and slipping shims
between bearing and web on column. Add shims
by hand until no more may be added.
8. Divide shims as equally as possible between the
two bearings on both top and bottom of column
and install under bearings.
9. Lower inner column down and out of the outer
column to expose the two bottom bearings, two top
bearings and install shims under bearings.
10. Raise inner column up outer column as far as it will
go under normal operation. Check bearing
shimming as inner column is raised. Remove
shims as required if tight spots are encountered
where mast cannot move smoothly. Check for
excessive bearing clearance with columns in
closed position by prying column to one side and
check with a 0.030 in. shim. Maximum clearance
must not exceed 0.030 in.
11. Attach a hoist to top of platform frame and place
platform in inner column.
12. Hoist platform up inner column to attach lift chain
anchor pins. When installing lift chains, chains are
to be free of twists and adjusted for equal tension
with adjusting nuts and locknuts torqued to 200 ft-
lb (271 N•m). Chains are to be centered on sheave
within 1/32 in.
13. Connect lift chains, steering wheel chain, and
electrical cable.
14. Remove hoist from mast and lower unit to floor.
15. Install and connect battery to unit.
16. Loosen locking nuts on chain anchors. Adjust nuts
until both chains are free of twist and of equal
tension. Tension is correct if you can force lift
chains sideways approximately 1/2 in. to 1 in.
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