Relief Valve and Adapters

Reassembly. Refer to figure 3-12 and

g. Reassembly. Refer to figure 3-13 and re

reassemble the pump gearbox in the reverse order.

assemble the relief valve and adapted in the reverse

order.

g. Installation.

(1) Refer to figure 3-11 and install the pump

gearbox on the pump assembly.

3-16. Pump Head and Body

a. General. The pump head and body are the

(2) Install universal drive shaft (TM 5-4210-

basic assemblies of the fire pump.

213-12).

b. Removal.

3-15. Relief Valve and Adapters

(1) Remove the pump assembly (para 2-11).

a. General. The relief valve bypasses water within

(2) Remove the pump gearbox (para 3-14).

the pump to prevent pressure rises. The adapters will

(3) Remove the relief valve and adapters

allow various size connections.

(para 3-15).

b. Removal. Refer to figure 3-13 and remove the

(4) Refer to figure 3-14 ad remove and

relief valve and adapters.

disassemble the pump head and body.

c. Disassembly.

Refer to figure 3-13 and

c. Cleaning. Clean all parts in an approved

disassemble the relief valve and adapters.

cleaning solvent and dry thoroughly.

d. Cleaning. Clean all parts in an approved

d. Inspection and Repair. Inspect all parts for

cleaning solvent and dry thoroughly.

wear, defects, and damage (table 1-1). Replace or

e. Inspection and Repair. Inspect all parts for

repair worn, defective or damaged parts as necessary.

wear, defects and damage. Replace or repair worn,

e. Reassembly.

Refer to figure 3-14 and

defective, or damaged parts as necessary.

reassemble the pump head and body in the reverse

f. Testing. Test valve for movement as follows:

order.

(1) Remove bonnet (13) and move valve (17)

f. Installation. Refer to figure 3-14 and install the

in and out.

pump head and body in, the reverse order.

(2) If packing (16) sticks in cylinderremove

(1) Install the relief valveand adapters (para

cover (11) and lightly grease the cylinder wall in path of

3-15).

packing.

(2) Install the pump gearbox (para 3-14).

(3) Install bonnet (13) and cover (11).

(3) Install the pump assembly (para 2-11).

3-19