1. OUTER MAST
2. INNER MAST
3. LIFT CYLINDER
4. MAST SUPPORT PAD
Figure 10. Mast Support Pad
1. LOAD ROLLER
2. BEARING BLOCK
3. INNER MAST
Figure 11. Bearing Blocks and Load Rollers on
Inner Mast
Bearing Blocks
The carriage and inner mast are equipped with
bearing blocks. These absorb sideways forces, which
cannot be absorbed by the load rollers. The bearing
blocks are shimmed close to the mast channels. Re-
shimming is required when sideways movement
causes shocks that affect load handling.
On the carriage the bearing blocks are located just
above the load rollers. On the mast the lower
bearing blocks are above the lower rollers on the
inner mast. The upper bearing blocks are at the
upper channel end of the outer mast. See Figure 11.
CARRIAGE
Three different types of carriages are available for
different combinations of side shifting and fork
positioning.
• The standard pin type carriage can have
manual or hydraulic fork positioning.
• The carriage with integral side shifting has a
separate apron, which carries a pin type
carriage.
• The dual function carriage has fork carriers,
which allow side shifting under load.
4000 SRM 1664
Description And Operation
9
