Section II. PRIMER PUMP ASSEMBLY - TM-5-4210-205-350051

Figure 8. Foam metering valve, exploded view.

Section II. PRIMER PUMP ASSEMBLY

41. General

a. Removal. Remove the primer pump assembly

(TM 5-4210-205-12).

The priming system consists of a rotary vacuum

pump operated by a 24-volt electric motor controlled

through a priming pump valve mounted in the pump

b. Disassembly. Refer to figure 9 and disassemble

compartment, and a microswitch mounted on the

the primer pump assembly.

priming pump valve. As the priming pump valve is

actuated the microswitch starts the priming pump motor.

43. Primer Pump Assembly, Cleaning, Inspection,

The priming pump motor drives the primer pump which

and Repair

sucks water into the centrifugal type fire pump suction

line, priming the pump. After both the suction and

a. Cleaning.

Clean all parts in an approved

discharge casings have been completely filled, water is

cleaning solvent and dry thoroughly.

then discharged through the bottom of the primer pump,

and the primer pump must be manually shut off.

b. Inspection. Inspect all parts for wear, defects,

42. Primer Pump Assembly, Removal and

and damage.

Disassembly

TAGO 5947-A