Single Lift Cylinder (Model ACC40-24PS180)

TM 10-3930-630-12

(3) Refer to paragraph 4-38 and install cluster

(2) Secure cylinder to outer mast to outer with nut

cylinder, carriage and chains. 4-40. Mast Assembly

(28). Install spacer (29) on top of cylinder and secure cylinder

4-40. Mast Assembly

to retainer with screw (27).

General. The telescoping mast assemblies

(3) Install retainer (33) behind cylinder and secure

raise and support the carriage and load. Canted roller-type

with screw (30), lockwasher (31) and nut (32).

construction uses ball bearings to provide friction free

(4) remove plug and install new packing (16), body

operation within the telescoping channels.

(15), regulator (14) and elbow (13) inlet port of cylinder.

(1) Model ACC40-24PS100 lift trucks incorporate a

Remove plug and connect to elbow.

two-section mast and one cluster cylinder. The inner mast

(5) Refer to paragraph 4-36 and install carriage and

(42, fig. 4-20) rides inside the outer mast channels on bearings

forks.

attached to the bottom of the inner mast and inside the top of

(6) Refer to paragraph 4-35 and install lift chains.

the outer mast.

(7) Operate lift mechanism and check operation.

Installation (Model ACC40-24PS180).

(2) Model ACC40-24PS180 lift trucks incorporate a

three-section mast, a cluster cylinder and a single-lift cylinder.

(1) Lift cluster cylinder (48, fig. 4-19) into position

The inner mast (42, fig. 4-19) rides inside the intermediate

on intermediate and inner masts. Secure cylinder to masts

mast channels. Bearings at the bottom of the inner mast and

with screw (26), lockwasher (27) and nut (28).

top inside of the intermediate mast guide the mast. The

(2) Remove plugs and connect tube (5) to cluster

intermediate mast (44, fig. 4-19) operates in the same manner

cylinder and single cylinder. Install guard (3) over tube and

inside the outer mast.

secure with screw (1) and lockwasher (2).

Inspection.

(3) Refer to paragraph 4-36 and install carriage,

(1) Operate lift mechanism and che ck operation.

forks and backrest.

Masts should function smoothly and sequence

(4) Refer to paragraph 4-35 and install lift chains.

properly.

(5) Operate lift mechanism. Refer to paragraph 4-

(2) Inspect bearings for wear and damage.

34 and bleed hydraulic system, if necessary.

(3) Inspect mast channels for wear and damage.

Check all welds for good condition.

4-39.

Single Lift Cylinder (Model ACC40-24PS180)

Removal (Model ACC40-24PS180).

General. In addition to the cluster cylinder,

(1) Refer to paragraph 4-35 and remove lift chains.

model ACC40-24PS180 trucks have a single lift cylinder to

(2) Refer to paragraph 436 and remove carriage,

supply the final stage of the three-stage lift A tube connects

backrest, and forks.

from single cylinder to the cluster cylinder to provide hydraulic

(3) Refer to paragraphs 4-38 and 4-39 and remove

pressure.

cluster and lift cylinders.

Removal

(4) Attach a hoist of sufficient capacity to mast

(1) Refer to paragraph 438 and remove the cluster

lifting eyes on outer mast.

cylinder.

(5) Refer to paragraph 437 and disconnect tilt

(2) From beneath the truck, disconnect the hose

cylinders from outer mast.

from elbow (12, fig. 4-19). Plug end of hose.

(6) Remove lockwire (3, fig. 4-21) securing screws

(3) Remove elbow (12), flow regulator (13), body

(4). Remove screws (4) and lockwashers (5). Raise mast with

(14) and packing (15) from the inlet port of the single cylinder.

hoist to relieve tension on pins.

Plug cylinder port.

(7) Remove pins (6) from both sides of mast.

(4) Support the cylinder (49) and remove screw

(8) Use the hoist and lift mast assembly from truck

(26), lockwasher (27) and nut (28) securing cylinder to bracket

and place mast on suitable supports.

(36) and outer mast.

Removal (Model ACC40-24PS100).

(5) Remove screws (29) and lockwashers (30) and

(1) Refer to paragraph 4-35 and remove lift chains.

remove clamp (31) and spacer (32) securing bottom of

(2) Refer to paragraph 4-36 and remove carriage,

cylinder to mast.

backrest and forks.

(6) Carefully remove cylinder from mast.

(3) Refer to paragraph 4-38 and remove cluster

Installation.

cylinder.

(1) Place cylinder (49, fig. 4-19) into position on

(4) Attach a hoist of sufficient capacity to mast

mast and install clamp (31) and spacer (32). Secure clamp

lifting eyes on outer mast.

around cylinder with screws (29) and lockwashers (30).

(5) Refer to paragraph 4-37 and disconnect tilt

(2) Secure top and bottom of cylinder to retainer

cylinders from outer mast.

and mast with screw (26), lockwasher (27) and nut

(6) Remove lockwire (3, fig. 4.21) securing screws

(28).

4-30