TM 5-3895-356-14&P
TROUBLE SHOOTING (continued)
SPRAY PATTERN
SPRAY FOGS
Probable cause
Probable remedy
Pump speed too fast for size of nozzle ......................................... Check "Circulating in Tank", page 14,
for proper relationship
SPRAY STREAKS
Probable cause
Probable remedy
Pump speed too slow ..................................................................... Check "Circulating in Tank" , page 14,
for proper relationship.
Nozzles not at proper angle............................................................ Adjust with nozzle wrench
Spray bar at improper height above ground................................... Adjust spray bar to give nozzle height 12" above
road
Material temperature too low . ....................................................... Heat material to highest temperature recommended
for spraying material
SPRAY LACKS PRESSURE
Probable cause
Probable remedy
Pump speed too slow ..................................................................... Check "Circulating in Tank" s Page 14,
for proper relationship
One of control valves m incorrect position ..................................... Lift quadrant and turn valve plugs to position
relative to levers as shown on page 6.
Manual
Discharge strainer plugged ............................................................ Remove and clean
APPLICATION RATE VARIES
Probable cause
Probable remedy
Improper reading of tank contents ................................................. Use measuring stick for accurate readings.
Tank must be level when reading measuring stick.
Defective pump tachometer ........................................................... Repair or replace Each revolution of asphalt
pump is 0.61 gallons Tachometer head may be
checked at speedometer shop. 500 R.P.M.
204 G.P.M.
Defective bitumeter ........................................................................ Repair or replace. Use measured distance and stop
watch Drive at constant speed. Bitumeter head
maybe checked at speedometer shop. 1000 R.P.M.
- 1000 F.P.M
Catch lever on quadrant not pulled................................................. Pull catch lever outward
Discharge strainer plugged ............................................................ Remove and clean discharge strainer on pump outlet
(see page 10. )
Hydrostatic control not firmly positioned......................................... Adjust and tighten
Hydrostatic override control partially engaged ............................... Return override to neutral position
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