Preparing the Balnce for use

TM 5-6640-213-14

(b) Loosen the read nuts (17, 5, 16 and 7) on both

sides of the beam until the springs underneath can be swung aside by

at least 90 degrees. Then retighten the red nuts to prevent acciden-

tal spring movement.

use.

(d) Remove the transport arrestment of the mechanical

taring suspension (2). Also remove the rubber band from the weight

carriage bridle (12), which is attached to the knurled nuts (15 and

8) to hold the weight carriage bridle without movement.

(e) Open both doors and remove the two knurled head

screws in the top of the weighing chamber. Remove the plate and

remove the two knurled nuts to which the rubber bands are attached.

Remove the weight carriage, remove the cardboard and the foam rubber

from the weight carriage and replace it. Save the cardboard, foam

rubber and wooden blocks for future use. Replace plate and knurled

head screws.

(f) Check knives and bearings to be sure they are

clean; even fingerprints are unacceptable since they may result in

corrosive etching. See instructions in c. below for detailed clean-

ing procedures.

(g) Install the stirrup bearing plate on the end

knife by placing it on the arrestment pins (11 and 13, fig. 3-6) so

that the engraved marking "V" on the plate top faces toward the front

of the balance.

(h) Lift the weight carriage (10) and raise the

weight carriage bridle up and place it on the stirrup bearing plate

so that the support pins on the weight carriage bridle are set into

the notches on the top of the bearing plate.

(i) If the tare boat (2, fig. 3-8) is to be used, the

screw weights (9 and 14, fig. 3-6) must be removed from the left and

right side of the weight carriage bridle. These weights correspond

to the weight of the tare boat and the tare ring (1, fig. 3-8)

respectively.

Retighten the knurled nuts adjacent to the screw

weights and store the screw weights in the beam compartment (top) of

the balance. Place the tare ring notch (3, fig. 3-8) on the weighing

pan bridle stirrup recess (3, fig. 3-7) and attach the weighing pan

bridle to the hook that extends down into the weighing compartment.

The open end of the hook on the weighing pan bridle crosspiece must

face toward the right of the balance when the weighing pan is in-

stalled and the two small weights on the tare ring must point down.

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