Annual Pump Test

Question 1

Engine speed check

Answer 1

Check under “no load conditions” to ensure that it is still running +- 50 RPM of the governed speed originally rated at.
Transmission Neutral
Place pump shift control in pump
(Do not engage pump)
Switch to RPM mode at panel
Slowly increase speed until governor limits engine or it exceeds limit by 50 rpm

Question 2

Pump engine control interlock test

Answer 2

1) engine running in neutral, disengage air brake, should NOT be able to advance the throttle at pump panel.
2) engine running, pump gear ENGAGED, air brake DISENGAGED, should NOT be able to advance throttle at panel

Question 3

Intake relief valve system test.

Answer 3

• Connect 3 inch intake to 2 1/2 inch discharge of another engine.
• Close the tank fill valve (no need to engage pump)
• Increase pressure of second engine until relief valve opens (water spurting from under chassis)
• Record the pressure

Question 4

Dry pump vacuum test

Answer 4

-Connect pump test vacuum gauge
-drain the pump, remove all discharge end caps with cellophane
-start engine, raise to 1000 RPM
-run priming pump until 22 inches Mg
-compare compound gauge with vacuum test gauge
-turn off engine, listen for leaks
10 inches Mg in 5 mins max

Question 5

Priming test

Answer 5

Connect pump test pressure gauge
Set up pitot
Submerge strainer 24 inches
10 ft max lift
Set up discharge hose to pitot manifold
Start engine/pump, raise rpm to 1000-1200
Start primer and stopwatch, measure time it takes for water to come out.
Once primed, shift transmission into drive. Maintain minimum of 50 psi pump pressure

Question 6

100% capacity @ 150psi

Answer 6

20 minutes
Select pitot tube/nozzle
RPM mode; slowly raise to 150psi
Start time and record gauges for 20 mins

Question 7

Overload test

Answer 7

Pump must be able to pump capacity at 165 PSI without exceeding maximum no-load governed speed.

Question 8

Pressure control device test at 150 psi

Answer 8

Set pressure control at 150 psi
Slowly close all discharge valves one at a time (3-10 secs)
Record pressure rise (no more than 30psi)

Question 9

Pressure control device test at 90 psi

Answer 9

Set pressure control device at 90 psi.
Slowly close all discharge valves one at a time (3-10 secs)
Record pressure rise. No more than 30 psi

Question 10

70% capacity at 200 psi

Answer 10

10 mins
Set up proper pitot/nozzle
Slowly raise pump pressure to 200 psi
Test for 10 mins
Record at start, 5 mins, 10 mins

Question 11

Pressure control device test at 250 psi

Answer 11

250 psi
Slowly close all discharges 1 at a time (3-10 secs)
Record pressure rise, no more than 30 psi

Question 12

Tank to pump flow rate test

Answer 12

Set up pitot/nozzle for 500gpm
Close tank fill
Open discharge and increase rpm to desired flow
Compared this measurement to the reading provided by manufacturer

Question 13

Gauge test

Answer 13

Connect to hydrant, cap All discharges
Slightly open all valves
Raise pressure to 150, 200, and 250 psi
Ensure all pressure gauges are within 10 psi of the calibrated test gauge