Figure 2-3. Main engine controls.

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Figure 2-2. After steering station.

TM-55-1925-204-12 TUG Harbor Diesel 1200 H. P. Steel 100 Ft Design 3006 Flight One FSN 1925-375-3003 Manual

Figure 2-3. Main engine controls. - CONTINUED

Engine order telegraph

7. Airbrake pressure gage

Steering gear switch

8. Cylinder relief lever

Voice tube (to aft steering station)

9. Thermometers

Governor hand control

10. Fuel shutoff reset lever

Throttle handwheel

11. Emergency fuel shutoff

Astern and ahead handwheel

12. Fuel filter selection lever

Figure 2-3. Main engine controls.

(2) Steering gear switch (2). This switch

communication between engine operator and the vessel

operator at the aft steering station.

operates motor that drives hydraulic pump of the

(4) Governor hand control (4). This control is

steering gear system. It is located on port side of

engine, near the engine order telegraph dial.

located on port side of engine, just above the throttle

Depressing RUN button starts motor and places steering

handwheel. It is used during maneuvering when quick

gear in operation. Depressing STOP button stops motor

change of engine speed is necessary.

and secures the steering system.

(5) Throttle handwheel (5). Located on port

(3) Voice tube (3). Located on port side or

side of engine just ahead of the astern/ahead

engine near governor hand control, this is a source of

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