TOPIC 1. GENERAL DESCRIPTION - TM-10-3930-644-14-P0140

TM 10-3930-644-14&P

HIGH FREE LIFT MAST

TOPIC 1. GENERAL DESCRIPTION

The High Free Lift mast assembly includes of the

The wear plate type mast (Fig 1-2) utilizes wear plates

following:

parallel welded, telescoping uprights

which are installed at the top and bottom of the mast

(channels or beams) actuated by hydraulically controlled

assembly.

These keep the inner channel section

lift cylinder(s), a carriage assembly, and adjustable lift

centered within the outer section.

forks.

The fork and carriage assembly and the telescoping

Several mast assembly configurations ire available,

mast upright section is controlled by independent

depending on the ultimate application of the lift truck.

rollerless type lift chains.

These masts are of the welded type construction and

offer the operator a wide visibility range. The masts use

The chains travel over anti-friction bearing guides for

shimmed canted roller bearings or wear plates and

safety as well as functional assistance. Each chain has

shims.

sufficient strength to safely handle the recommended

load capacity.

The canted roller type constriction (Fig 1-1) utilizes ball

bearings to provide friction free operation within the

telescoping upright sections.

Figure 1-1. Canted Roller Type Carriage

and Mast (Typical)

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