FRAME 3

TM 9-2350-222-20-2-1

S Y N C H R O N I Z A T I O N SPINDLE ADJUSTMENT OF 165-MM GUN WITH

3-7.

GUNNER'S PERISCOPE M32C (CONT)

FRAME 3

Procedure

Step

Be sure inner screws are free of spindle before adjusting

sleeve.

NOTE

When making fine adjustment, the numbers/divisions

(red or black) on spindle (1) and sleeves (2) should be

lined up with each other and with scribe lines on

bearing cap.

Use black numbers/divisions to lower periscope reticle,

or red numbers/divisions to raise periscope reticle.

Put spanner wrench in the 3/32"-diameter holes on edge of spindle.

Put spanner wrench in the 3/32"-diameter holes (not tapped holes) on edge of sleeve

(2).

Using spanner wrench turn spindle (1) first and then sleeve (2) to equal amount in

opposite directions with respect to scribe lines on bearing cap until aiming cross of

gunner's periscope daylight - reticle is on same aiming point as gun.

Be careful not to strip threads or sockets when installing

setscrews.

Using Allen wrench, tighten two inner setscrews on sleeve (2) from between 4.5 and 5.0

pound inches.

Using Allen wrench, put outer locking setscrews in sleeve (2) and tighten setscrews.

Using socket and drive ratchet, tighten four bearing cap clamping screws (3).

GO TO FRAME 4

Para 3-7 Cont

3-32