Quantcast Section II. PRIMER PUMP ASSEMBLY - TM-5-4210-213-350043

 

Click here to make tpub.com your Home Page

Page Title: Section II. PRIMER PUMP ASSEMBLY
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Figure 3-8. Foam metering valve, exploded view.
Up
TM-5-4210-213-35 Truck Firefighting: Powered Pumper: Foam and Water 500-GPM Capacity; Centrifugal Pump Power Takeoff Driven Manual
Next
Relief Valve and Adapters
Section II. PRIMER PUMP ASSEMBLY
3-10. General
e. Inspection and Repair. Inspect all parts for
The priming system consists of a rotary vacuum pump
wear, defects, and damage.  Replace or repair worn,
operated by a 24-volt electric motor controlled through a
defective, or damaged parts as necessary.
priming pump valve mounted in the pump compartment,
f. Reassembly
.
Refer  to  figure  3-9  and
a microswitch mounted on the priming pump valve, and
reassemble the primer pump assembly in the reverse
a master control switch mounted on the pump control
order.
panel. As the priming valve is actuated the microswitch
g. Installation. Install the primer pump assembly
starts the priming pump motor.  The priming pump
(TM 5-4210-213-12).
motor drives the primer pump which sucks water into the
centrifugal type fire pump suction lines, priming the
3-12. Primer Valve
pump.  After both the suction and discharge casings
a. General. The primer valve controls the primer
have been completely filled, water is then discharged
pump.
through the bottom of the primer pump, and the primer
b. Removal. Refer to figure 3-1 and remove the
pump must be manually shut off.
primer valve from the pump assembly.
3-11. Primer Pump Assembly
c. Disassembly.
Refer  to  figure  3-10  and
a. General.  The primer pump primes the fire
disassemble the primer valve.
pump.
d. Cleaning.  Clean all parts in an approved
b. Removal. Remove the primer pump assembly
cleaning solvent and dry thoroughly.
(TM 5-4210-213-12).
e. Inspection and Repair. Inspect all parts for
c. Disassembly.
Refer  to  figure  3-9  and
wear, defects, and damage.  Replace or repair worn,
disassemble the primer pump assembly.
defective, or damaged parts as necessary.
d. Cleaning.  Clean all parts in an approved
f. Reassembly.
Refer  to  figure  3-10  and
cleaning solvent and dry thoroughly.
reassemble the primer valve in reverse order.
g. Installation. Refer to figure 3-1 and install the
primer valve on the pump assembly.
Section III. FIRE PUMP ASSEMBLY
3-14. Pump Gearbox
3-13. General
The fire pump assembly consists of a main pump,
a. General.  The fire pump gearbox contains
drive unit and relief valve. The main pump includes the
driving gears and bearings to transmit power to the fire
impeller, main shaft, main bearings and head, suction
pump.
and discharge pipes, and volute case. The drive unit
b. Removal.
contains driving gears and bearings for the main pump,
(1) Remove universal drive shaft (TM 5-
which is driven by the power takeoff unit on the truck
4210-213-12).
transmission. A series of vanes on the rapidly rotating
(2) Refer to figure 3-11 and remove the pump
impeller produce centrifugal force, which forces the
gearbox from the pump assembly.
water through the inside of the impeller, this increases
c. Disassembly.
Refer  to  figure  3-12  and
the pressure of the water and creates a vacuum which
disassemble the pump gearbox.
draws more water into the impeller.  The relief valve
d. Cleaning.  Clean all parts in an approved
bypasses water within the pump to prevent pressure rise
cleaning solvent and dry thoroughly.
when the hose lines are shut off.
e. Inspection and Repair. Inspect all parts for
wear, defects, and damage.  Replace or repair worn,
defective, or damaged parts as necessary.
3-18

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.