PS S7.1 7110
001 OE35
Version no     T-code
F-code Section C-code
Mast, 3 Stage
   270 
Service Manual 1996-10-15
1. Shimming Mast on Truck.
1.1. Shimming the Platform.
1. Disconnect battery and remove battery from truck.
2. Attach a hoist to top of platform and hoist to loosen
lift  chains.  This  will  allow removal of  lift chain
anchor pins and electrical cable.
3. Thoroughly clean off all outside dirt around mast
roller bearings.
4. Determine the number of shims required by prying
the rear of platform to one side and slipping shims
between the bearings and web on the column. 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. Hydraulically lift up inner column enough to remove
platform.
7. Lower platform down inner column to expose
bearings. Remove bearings to install shims behind
bearings.
 8. Raise platform up inner column as far as it will go
under normal operation. Check bearing shimming
as the platform is raised. Remove shims as
required  If  tight spots are  encountered where
assembler cannot move platform smoothly. Check
When blocking mast columns to prevent
lowering,  always  block  both  sides  of the
column. Otherwise, the truck could tip over
on its side.
WARNING
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