Mast, 2 Stage
PS S7.0 7110
F-code Section C-code
Version no T-code
001 OE35
267
Service Manual 1996-10-15
© BT Products
2.4. Assembly
1. Thoroughly clean all parts and air dry.
2. Install mast roller bearing on both the inner and
outer columns.
3. Assemble inner column in the outer column and
slide columns together.
4. Determine the number of shims required by prying
the inner column to one side and slipping shims
between the bearing and web on the mast. Add
shims by hand until no more can be added.
5. Divide shims as equally as possible between the
two bearings and install under bearings.
6. Extend inner column through outer column as far
as it will go under normal operation. Check bearing
shimming as column is extended. Remove shims
as required, if tight spots are encountered where
assembler cannot roll mast by hand.
Check for excessive clearance with columns in the
fully closed position by prying column to one side
and checking with a 0.030 in. shim. Maximum
clearance must not exceed 0.030 in.
Check for excessive bearing clearance with
columns in the fully extended position by prying
column to one side and checking with a 0.030 in.
shim. Maximum clearance must not exceed 0.030
in.
7. Install lift cylinder assembly.
8. Install grease fittings in pins, if removed.
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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