HOSE NOZZLE MAINTENANCE.

TM5-4210-224-14&P

4-19. HOSE NOZZLE MAINTENANCE.

This task covers:

a. Removal

b. Installation

c. Repair

INITIAL SETUP:

Tools

General Safety Instructions

General Mechanics Tool Kit

Spanner Wrench

Engine OFF

(J-7624)

Transmission in (N) neutral.

Materials/Parts

Parking brake and micro-brakelock set

Hose Nozzle (1701)

REMOVAL

a. Using a spanner wrench, turn nozzle base

counter-clockwise.

b. Remove firehose nozzle from truck.

REPAIR

a. Unscrew connection base (1) from nozzle base

(2). Remove gasket (3).

b. Unscrew baffle (4).

c. Unscrew nozzle base (2) from sleeve (5).

d. Remove preformed packing (6), valve disc (7),

gasket (8), and pin (9).

e. Remove bumper (10) only if it must be replaced.

f. Install new bumper (10), if necessary.

g. Install new preformed packing (6), new gasket (8),

valve disc (7), and new pin (9).

h. Screw sleeve (5) onto nozzle base (2).

i. Screw baffle (4) onto nozzle base (2).

j. Place new gasket (3) in connection base (1).

Screw connection base (1) onto nozzle base (2).

INSTALLATION

a. Install nozzle base by turning clockwise onto hose

end.

b. Tighten with a spanner wrench.

4-50