Chapter 3. REPAIR INSTRUCTIONS - TM-5-4210-213-350026

CHAPTER 3

REPAIR INSTRUCTIONS

Section I. CONTROL VALVES, LINES AND FITTINGS

3-1. General

d. Cleaning

Clean all parts in an approved

A series of valves and piping mounted to the fire

cleaning solvent and dry thoroughly.

pump perform such functions as filling the water tank,

e. Inspection and Repa.r Inspect all parts for

discharging either water or a water and foam

wear, defects, and damage. Replace or repair worn,

combination, through the reel hose, or draining the fire

defective, or damaged parts as necessary.

pump.

All operating valves, except the foam

f. Reassembly

Refer to figure 3-2 and

proportioning valve and tank drain valve are of the

reassemble the suction and discharge valves in the

quarter-turn quick opening ball type.

reverse order.

g. Installations Refer to figure 3-1 and install the

3-2. Water and Foam Pipes and Fittings

suction and discharge valves on the suction and

a. General. The water and foam pipes and fittings

discharge head.

provide a water and foam passage from the fire pump to

the water and foam tanks.

3-4. Hose Reel Valves, Tank Fill Valve, and Tank

b. Removal. Refer to figure 3-1 and remove the

Suction

water and foam piping from the pump assembly.

a. General. The hose reel, tank fill, and tank

c. Disassembly Separate the pipes, valves and

suction valves control the intake and outlet of liquid to

fittings.

the hose reels and tanks.

d. Cleaning Clean all parts with an approved

b. Removal. Refer to figure 3-1 and remove the

cleaning solvent and dry thoroughly.

hose reel valves.

e. Inspection and Repair. Inspect all parts for

c. Disassembly

Refer to figure 3-3 and

wear, damage, or defects.

Replace damaged or

disassemble the hose reel valve, tank fill valve, and

defective parts as necessary.

tank suction valves.

f. Reassembly. Connect the pipes, valves and

d. Cleaning. Clean all parts in an approved

fittings.

cleaning solvent and dry thoroughly.

g. Installation. Refer to figure 3-1 and install the

e. Inspection and Repair. Inspect all parts for

piping assembly on the pump assembly.

wear, defects, and damage. Replace or repair worn,

defective, or damaged parts as necessary.

3-3. Suction and Discharge Valves

f. Reassembly.

Refer to figure 3-3 and

a. General. The suction and discharge valves

reassemble the hose reel valves, tank fill valves, and

control the intake and outlet of liquid to and from the fire

tank suction valve in the reverse order.

pump.

g. Installation. Refer to figure 3-1 and install the

b. Removal. Refer to figure 3-1 and remove the

hose reel valves, tank fill valve, and tank suction valve

suction and discharge valves from the suction and

on the pump assembly.

discharge heads.

c. Disassembly

Refer to figure 3-2 and

3-5. Water Tank Drain Valve

disassemble the suction and discharge valves.

a. General. The water tank drain valves provide a

method of draining the water tank.

3-1