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 198 of 775

TM 9-2350-311-10

2–10 OPERATING PROCEDURES — CONTINUED

2-10.2 Portable Instrument Panel Checkout Procedures — Continued

f. BATTERY Gage

If BATTERY gage (13) indicates subnormal charge or overcharge, notify unit maintenance.

g. TRANSMISSION OIL TEMP Gage

TRANSMISSION OIL TEMP gage (5) normal range is 220 to 240° F. (Maximum is 300° F.)

h. WATER TEMP Gage

WATER TEMP gage (4) normal range is 170 to 185° F. (Maximum is 230° F.)

Do not remove radiator cap when engine is hot. Severe burns could result from failure to observe this warning.

i.

COOLANT Indicator Light

COOLANT indicator light (14) indicates coolant level in cooling system. If low, shut engine down and check coolant

level.

j.

MASTER Switch

Move MASTER switch (15) to ON position to start engine. When MASTER switch is to ON, MASTER switch indicator

light (16) is illuminated.

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