P550 PUMP
Operations and Parts Manual
GNC Industries, Inc., 1401 Pace Rd., Pocahontas, AR 72455
1-870-248-9901
Email: sales@gnci.org
Website: www.gncindustries.com
WARRANTY
GNC Industries, Inc., P-Series Pumps are warranted by GNC Industries, Inc. GNC Industries, Inc. will repair or replace (at GNC In-
dustries, Inc.’s option) any part or assembly, free of charge, if that
part or assembly fails within twelve months (1 year) from the date
of purchase, provided the failure is due to an unmistakable defect
in material or workmanship.
No allowance will be made for consequential damage, labor or
expenses incurred as the results of a proven defect. In no event
will GNC Industries, Inc. be liable for any loss of profits or other
consequential damages, even if GNC Industries, Inc. has been
advised of the possibility of such damages.
GNC Industries, Inc. assumes no responsibility for accidents or
injuries resulting from maintenance or adjustment of product while
product is in operation.
Since GNC Industries, Inc. has no control over the operational
techniques or chemicals used, GNC Industries, Inc. assumes
no liability for the consequences of the use or misuse of any
equipment by the purchaser, their employees or others.
Maximum operation speed and pressure is specified in individual
and applicable instructions.
GNC Industries, Inc. reserves the right to improve any product
without being obligated to provide that change on equipment sold
and/or shipped prior to the product change.
Modification of equipment voids all warranties written or implied.
warranty@gnci.org
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Warning:
1. Never point the spray gun at people or animals.
2. The pump will produce high temperatures when
operating.
3. Keep hands and clothing clear of the belts and
pulleys when operating the pump.
Before Use/Start Up:
1. Check every fastener, including all hose clamps,
to make sure that the sprayer and the engine are
installed firmly to the frame.
2. Align the pump and engine pulleys in a straight
line and tighten the belts appropriately.
3. Check engine (see engine manual)
and pump oil (non-detergent). Fill as
needed to recommended levels. DO
NOT OVER FILL!
4. Check engine fuel. Fill as needed,
with engine manufacture recommended fuel.
5. Attached the spray gun to the spray hose and
tighten all clamps.
6. Set the pump pressure regulator to “Pressure
Release” and make sure the pressure regulator
knob is set to “Start”.
7. Check the on/off switches of engine.
8. Start engine.
9. Set the pump pressure regulator to “Spraying”.
10. Adjust the pressure by turning the adjustable
pressure regulator valve clockwise.
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During Use:
1. Make sure the pump has sufficient liquid supply
to allow the pump to reach its working pressure.
2. To prolong the life of the pump, always operate
the machine within its specified pressure limits.
Adjust the pressure by turning the adjustable
regulator knob clockwise.
3. In order to avoid any damage to the packing and
the pump, shut off the engine or motor when
temporarily stopping the unit for more than 5
minutes.
4. Avoid running the pump without liquid.
After Each Use:
1. Set the pressure regulator switch to
“Pressure Release”, and run the pump with clean
water to prolong the life of the pump.
2. Set the pressure regulating knob to “START”
when the pump is not in use.
Maintenance:
1. Change the oil in the pump after the first 10-15
hours of use. After this, change the oil in the
pump after every 70 hours of use. NOTE: Always
make sure the oil is clean and visible thru the oil
sight gauge Ref#11A before operating.
2. Change or replace components, based on the
symptoms as listed in the trouble shooting
section.
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