Section III. OPERATION UNDER USUAL CONDITIONS

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PREVENTIVE MAINTENANCE CHECKS AND SERVICES -cont.

TM-5-1940-277-10 Boat Bridge Erection Twin Jet Aluminum Hull Model USCSBMK 1(1940-01-105-5728) MODEL USCSBMK 2 (1940-01-218-9165) Manual

STARTING ENGINES (NORMAL)

TM 5-1940-277-10

TM 1940-10/1

Section III. OPERATION UNDER USUAL CONDITIONS

2-9. STARTING ENGINES (NORMAL)

WARNING

It is critical for SAFETY purposes to keep the engine hatch covers closed when engines

are running, except when engine maintenance is being performed.

CAUTION

The engines must not be operated out of the water nor operated in the water with the

water jets disengaged for more than 20 minutes at idle speed. Ensure the engine

temperature does not rise above 194 . Serious engine damage could result if this

caution is not observed.

Do not use the electric bilge pumps for longer than one minute unless the engines are

running. Without the engines running, the bilge pumps will soon run down the batteries.

NOTE

On the MK2, the master battery switch is mounted inside the battery box. The battery box

hatch must be opened to gain access to the master battery switch. Switch operating

procedure is the same for MK1 and MK2.