ADJUSTMENT PROCEDURES

TM 9-8140-381-14&P

shown in figure 2-1, while tightening nut.

a. Raise corner of cage using a pallet jack or fork

lift until the caster wheel is approximately 3 to 6

inches from the floor. Place dunnage to secure

d. After tightening nut, operate the lever three

this position.

times to assure it is positioned properly

(between 90 and 120 degrees from stop).

b. Rotate the brake lever clockwise by hand until

the wheel is locked and it cannot be turned by

e. Lower cage corner and repeat procedures for

hand. At this point the brake lever should be at

other front caster, if necessary.

least 90 degrees (to a vertical position) but no

more than 120 degrees (parallel to the slope of

2-4.

REMOVING/INSTALLING

caster leg) from its starting position against the

CASTER SHOULDER BOLT

stop. If the lever position is less than 90

PROCEDURES

degrees or greater than 120 degrees, readjust

the brake using par. 2-3.2.

a. Remove caster in accordance with paragraph 2-

1a thru 2-1d.

2-3.2.

ADJUSTMENT PROCEDURES

b. Using a hammer, drive defective bolt upward

a. Using a 3/4 inch open end or box wrench and a

until free front its mounting plate. Reach into

large flat blade screwdriver to hold the bolt,

access hole from below and remove defective

loosen the brake lever adjustment nut until the

bolt.

nut is loose enough for the brake lever to turn

NOTE

freely on the bolt threads.

The shoulder bolt will be seated after

caster is reinstalled and fully

NOTE

tightened.

The brake lever must be rotated to

UNLOCK

position

(full

c. After removing bolt, inspect mounting surface

counterclockwise) and against stop

and mounting hole of the plate to be sure that

and held in position when turning

they are free of dirt, rust or other foreign

bolt in procedure below.

material and clean as required.

b. While one person turns wheel (by hand),

d. Insert replacement bolt from top of plate into

another person using the screwdriver turns the

hole. Assure that bolt's ribbed portion enters the

bolt clockwise until resistance (friction) is felt on

hole by holding thread end and pulling

the wheel being turned.

downward while rotating bolt.

c. Position the brake lever in the vertical position

e. Install caster in accordance with paragraph 2-e

(90 degrees from the stop) and retighten the nut

thru 2-1g. Continue tightening caster hex nut on

using a 3/4-inch socket and torque wrench.

replaced shoulder bolt until bolt is fully seated.

Tighten to 470 10 inch-pounds (39 5 foot-

Check to see that bolt is seated by feeling that

pounds). Insert the screwdriver into the area

the shoulder rests against the top plate.

2-2