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 595 of 775
TM 9--2350--311--10
Change 6
5--63
5--6
FUZE SETTING — CONTINUED
f.
Procedure Number 6, M762 and M767 Series Fuzes
The M762 or M767 fuzes can be set either by hand or remotelyby aweapon equippedwith auto-setfire controlsystem,
as follows.
CAUTION
Do not activate M762 or M767 series fuzes unless they will be fired before 15 days elapse.
Once activated, M762 or M767 series fuzes have a service life of approximately 15 days,
before the battery runs down. Check if LCD is active to determine if M762 or M767 series
fuze is still settleable.
1
Setting by hand.
CAUTION
If, after steps (a) and (b) are completed, the LCD display is blank or shows other displays
than indicated, the M762 or M767 series fuze is considered unserviceable and should not
be fired.
NOTE
The M762 or M767 series fuze ogive will rotate only clockwise (as viewed from nose end).
If a desired digit was passed, continue rotating clockwise until the desired digit appears
again.
(a) Rotate ogive clockwise at least one quarter revolution to activate the battery. The liquid crystal
display (LCD) window will display The M762A1/M767A1 fuze ogive can be rotated bi--directionally
to provide quicker manual setting. The M762A1/M767A1 fuze ogive can be rotated bi--directionally
to provide quicker manual setting
A
88.8 indicating that all segments are operating as a visual
safety check.
(b) Depress the thumb operated cocking and selector button to clear the LCD display. The LCD
window will display -- -- --. --, ensuring that no segments are stuck.
(c)
Depress the thumb operated cocking and selector button a second time; the LCD window will
display 000.0. The cursor under the zero in the hundreds of seconds column indicates that this
column is ready to be set.
NOTE
The hundreds of seconds column can display 0, 1 or
A
while the tens of seconds, seconds, and
tenths of seconds columns each can display 0 through 9.
(d) Each column is set independently. Depress and release the thumb operated cock and selector
button as required to move the cursor to the desired column. At the desired column, keep the
thumb operated cock and selector button depressed and rotate the ogive to select the desired digit
or
A
. Release the thumb operated cock and selector button and depress again to move cursor to
the next column to continue setting.
(e) For PD, set the M762 or M767 fuze to
A
98.0. Any other setting with
A
would result in a dud.
(f)
For the M762A1 or M767A1 fuzes, place the cursor in the hundreds digit and rotate the ogive until
the _ (underline) is selected. At this point the fuze will be set to point detonating setting and the
display will be “_ PD”.
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