TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 590 of 775

TM 9-2350-311-10

5-6 FUZE SETTING — CONTINUED

d. Procedure Number 4, M564 and M565 Fuzes — Continued

2 Setting M564 and M565 fuzes for airburst (time).

Incorrect settings of MT and MTSQ fuzes can and have resulted in downrange premature

malfunctions. The safety of personnel located downrange of a weapon firing MT and MTSQ

fuzes (between the weapon and intended target) is in the hands of the gun crew personnel

assigned the job of setting the fuzes.

(a) To set the M564 and M565 fuzes for a whole-second time setting use the M34 fuze setter to rotate

the lower cap in the direction of the arrow (5) (clockwise), until the desired whole number of

seconds (e.g., 20.0 seconds) on the lower cap scale (6) is alined with the “0” mark engraved on the

vernier scale (7).

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