Section 3.1-3.13 Flashcards
(30 cards)
Hail midship pumps require very little care and maintenance, however the little required is __________
extremely important
On two stage pumps remove the suction tube strainers and reach in, to ensure that _______ are free to swing also verify that no foreign matter is caught between a valve in the seat
check valves
Preventative maintenance tasks require very little time to accomplish and consist mainly of testing for _______,_______,_______.
leaks
lubrication
and cleaning
After drafting from seawater, contaminated, Sandy or dirty water, _________ and suction hoses by using water from a hydrant or other clean water source
flush the pump
After pumping foam through the pump ________ until all residues of foam have gone
flush with clean water
_________consists of testing the relief valve system or governor, the transfer valve onto stage pumps, the priming system, and the pump shift warning indicator lights.
Weekly maintenance
Priming system test
1
2
3
- tighten all pumped apps and close all pump valves
- Pull the primer control while you watch for a below zero reading on the master intake gauge
- Verify that the master intake gauge readings hold for approximately five minutes after you release the primary control. A drop of 10 inches of mercury in this 5 min period . Is anticipated per NFPA 1901
Valve lubrication
Spray all moving parts of the suction discharge hose drain and multi drain valve with a good grade of ______
lithium-based grease
Monthly maintenance includes the weekly maintenance procedure plus \_\_\_\_\_\_ \_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_
lubrication,
packing gland adjustment,
drive vacuum testing,
and checking the driveline bolts.
The weekly maintenance includes testing the \_\_\_\_ \_\_\_\_\_ \_\_\_\_ \_\_\_\_\_
relief valve system or governor
, the transfer valve on two stage pumps
, the priming system,
and pump shift warning indicator lights.
The packing gland is adjusted for a leakage of about _______ drops per minute at _______
8 to 10
150 psi
The slight leakage with the packing gland will ________ the shaft and packing to prevent burning and scoring the shaft
lubricate and cool
Annual maintenance consists of post operation _______ maintenance
weekly and monthly
The yearly _____________consist of checking the pumper according to rating at three capacities and comparing the results to when the pump was new
standard performance test
-
-
–pito gauge
- A pump master pressure gauge
- Master vacuum gauge or Manno meter
All gauges must be carefully tested for accuracy. Gauge testing is appropriately accomplished with a _________, which is usually available at the local waterworks
dead weight gauge tester
Pumpers should be tested from a draft at not over a ___ foot lift with ____ foot of suction hose
10
20
Pumpers rated at 1500 GPM And over often require two separate 20 foot lengths of suction hose and a _____ left height
lower
You smoothbore test nozzles of ______ with the pitot gauge
accurate size
The most common discharge hose used for pump testing is____in diameter _____feet long
2 1/2 inch
100 long
The number of hoses and length should be sufficient to reduce nozzle pressure to between ____. _____psig
30 and 85
For 1000 GPM pump test three lines are required and for 1250 and 1500 GPM test _____or more lines are required between a pumper and the nozzle
4 or more
Performance testing
NFPA standard requires a _______ reserve in pressure at the capacity run when the apparatus is delivered
10%
Performance testing
Run the engine for ______ minutes to stabilize the engine temperature then run the pump for ____ minutes at capacity 10 minutes at _____ capacity and 10 minutes at _______% capacity
20 to 30
20
70%
50%
