GNC P10 Guide

GNC Industries, Inc., 1401 Pace Rd., Pocahontas, AR 72455
800-462-2005 870-248-9905 fax
[email protected] www.gncindustries.com
P10 PUMP
Operations and Parts Manual

WARRANTY
GNC Industries, Inc., products are warranted by GNC Industries, Inc.. GNC Indus-
tries, Inc. will repair or replace (at GNC Industries, Inc.’s option) any part or as-
sembly, free of charge, if that part or assembly fails within twenty four months (2
years) 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 his 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 obli-
gated to provide that change on equipment sold and/or shipped prior to the prod-
uct change.
Modification of equipment voids all warranties written or implied
Page 1

SPRAYER START UP
1. Fill the engine with oil according to the engine manufacturer’s specifica-
tions. (SAE 30).
2. Fill the pump with 30-weight oil, until the oil level is at the full mark on the
pump oil sight gauge or dip stick.
3. Check the grease cups (ref # 50) to ensure they are full of grease.
4. Make sure all hoses are properly secured.
5. Make sure there is liquid in the tank.
6. Position the pressure bypass lever (ref # 108) on the pressure regulator in
the fully clockwise (up) position. This relieves all pressure and bypasses all
the liquid being pumped, back into the tank.
7. Start the engine and set the engine speed at approximately 3200-3400 RPM.
These use air cooled engines and should be run at full throttle during use.
8. Close all the discharge valves allowing only the return line into the tank to
remain open.
9. Check inside the tank to be sure there is liquid being pumped back into the
tank through the return agitator.
10.Unscrew the threaded regulator handle (ref # 101) until it comes out of the
regulator. Then put it back and screw it inward four (4) turns only.
11.Place the lever on the pressure regulator (ref # 108) in the fully counter-
clockwise (down) position. A slight pressure should register on the pressure
gauge.
12.Screw the regulator handle (ref # 101) inward until the desired operating
pressure is obtained on the pressure gauge. Then, open all valves to the
hose reel and place the spray gun in the open position, spraying back into the
tank through the lid. The pressure may drop slightly, but this is normal. If
the pressure drops below the desired pressure, adjust the regulator handle
(ref #101) inward one (1) turn. If the pressure increases, continue to adjust
inward until desired pressure is obtained with the spray gun in the “on” posi-
tion. When the desired pressure is obtained, you are ready to go to work. !!!
NEVER EXCEED 600 PSI !!! If the pressure will not go up to the desired oper-
ating pressure, do not continue to adjust the regulator screw handle inward.
13.!! LEAVE THE SPRAY GUN IN THE ON POSITION AND GO TO STEP 15.
14.Adjust the pressure regulator screw handle in the reverse direction until the
pressure starts to drop, and place the pressure regulator bypass lever (ref
#108) in the full (up) clockwise position. Then place the spray gun in the off
position.
15. Re-check the engine RPM to make sure it is at 3200-3400 RPM.
Page 2

Page 3
16. If you had to make any adjustments in step 15 or 16, repeat steps 10
thru 15
17. If you still cannot get the desired operating pressure, change the spray
gun tip to the next smaller size, and repeat steps I thru K.
18. If you still cannot get the desired operating pressure, go to the trouble
shooting guide (SECTION V.) or call GNC Industries, Inc. at 800-462-
2005 or 870-248-9901.
SPRAYER SHUT DOWN AND STORAGE
1. Run the pump until all liquid is pumped out of the system. Do not run
the
pump dry for more than 30 seconds. Then shut the engine off and fill the
tank with clean, clear water. Pump the tank empty. If the sprayer is
going
to be stored for several days, the following procedure is recommended:
2. Put 1 gallon of anti-freeze and 1 gallon of water or equivalent in the tank
if temperatures are expected to be below 0°F. Check the freeze chart
of the anti-freeze and add anti-freeze to recommended rating for ex-
pected temperatures.
3. Start the engine and allow the pump to operate just long enough to fill
the system with the anti-freeze solution. This is accomplished when only
anti-freeze mixture is coming out of the spray gun. Close the spray gun
and allow the pump to operate for 1 minute.
4. Shut the system off and place in storage. This procedure keeps all the
valves and other moving parts protected during storage.
5. When you are ready to use the system again, start the engine and allow
the pump to operate until all anti-freeze has been pumped out of the
system. Fill the tank with clear water and one bottle of ammonia-based
cleaning liquid. Run the pump until this solution has been pumped out.
Refill the system with clear water and pump the system dry once more.
The spray system is now ready to go to work.
NOTE: The above procedure is highly recommended for sprayers in cold cli-
mates as a prevention of freezing and breaking the pump.
STANDARD MAINTENANCE CHECKS
FILLING AND CHANGING LUBRICATION OIL
Take off the oil cap (ref # 4) and fill with 30-weight oil to the full line on the
indicator window or dip-stick. It is recommended to change oil every one
hundred (100) hours of operation.

GREASE THE CYLINDERS
Each cylinder is equipped with a grease cup to prevent premature plunger
and packing wear. Each cup must be filled with grease on the initial starting
of the sprayer unit and filled weekly if necessary.
PUMP REPAIR
TO REPLACE PUMP PISTON PACKING
1. Unscrew the nuts located underneath the cylinder (ref # 49) and remove
the discharge metal/manifold (item #71).
2. Unscrew the bolts (ref # 62) and remove the suction metal/manifold (ref
# 60).
3. Unscrew the nuts (ref # 52) that hold the cylinder (ref # 49) on, and then
the cylinder (ref # 49) should slide off the pistons.
NOTE: The cylinder (item #49) may require tapping with a non-metallic
object to remove. The piston packing is inside the housing.
4. Unscrew the crown nut (ref # 44) with the special wrench supplied with
the pump. With your fingers, you can now remove the grease ring (ref #
46) and also the V packing (ref # 47). Make sure to observe the direc-
tion of the v-shaped portion of the V packing. Install the new V packing
in the same direction. Re-assembly may be accomplished by reversing
the procedures.
5. After the pump is re-assembled, tighten the crown nut (ref # 44) with the
same special tool used to remove them.
CAUTION: DO NOT OVER TIGHTEN!!
6. After the pump is back in operation, if there is any leakage, a slight
tightening of the crown nut (ref # 44) may be necessary.
NOTE: Make sure to repack the grease cups (ref # 50) with grease
before placing the pump back in operation.
REPLACING THE SUCTION AND DISCHARGE VALVE ASSEMBLIES
1. Unscrew the nuts located underneath the cylinder (ref # 49) and remove
the discharge metal/manifold (ref # 71). Then the valve ass’y (ref # 53)
may be removed with a screwdriver.
CAUTION: Careful not to damage the plunger (ref # 26)
2. Unscrew the bolts (ref # 62) and remove the suction metal/manifold
(item #60). Then the valve ass’y (ref # 53) may be removed with a screw-
driver.
3. Clean the insets where the valves sit to make the new valves seat
properly.
4. Reassembly may be accomplished by reversing the disassembly proce-
dure.
NOTE: Suction and discharge valves are the same and both should be
replaced at the same time.
Page 4

Ref: 2, 3, 6, 7, 8, 11,
15,16
Ref: 1,2, 3, 4, 5, 6, 10,
11, 12, 13, 14, 15, 16
Abnormal Vibration
No Liquid at Spray Gun Abnormal Pump Noise
Ref: 2, 11, 14, 15, 16 Ref: 2, 3, 7, 8, 11, 15, 16
Abnormal SuctionLow or Lost Pressure
Ref: 9
Page 5

PART # DESCRIPTION
43-810-200 PRESSURE REGULATOR ASSEMBLY
Complete pressure regulator (unassembled)
43-810-250 PRESSURE REGULATOR REBUILD KIT: Upper Metal,
Spring, Under Metal, Packing, Spindle Guide, Oil Seal, Box,
Spindle, Ball Valve, O-Ring, Ball Valve Seat
(ref# 113-119, 121-124)
43-810-325 PACKING REPAIR KIT: 9 V Packings, 3 Crown Nuts, 3
Grease Rings, 3 Water Stopping Rings, 3 Grease Packings
(ref# 43-48)
43-810-350
(ref# 53)
VALVE REPAIR KIT: 6 Valves, 6 Seals(Valve Box, Spring
Valve, Valve Flat, Valve Seat, Valve Ring, Valve Seal)
43-810-380 PUMP REBUILD KIT: 3 Crown Nuts, 3 Grease Rings, 3 V-
Packing, 3 Water Stopping Rings, 3 Grease Packing, 9 Pack-
ing, 6 Valves, 6 Seals (ref# 43-48, 53)
1. Spray gun tip too large or worn
2. Suction filter clogged
3. Loose suction line connection
4. Malfunctioning pressure gauge
5. Malfunctioning pressure regula-
tor
6. Worn pump suction and dis-
charge valves
7. Over speeding the pump
8. Suction line too small
9. Pulsation dampening chamber
full of water
10. Worn pump valve chamber
11. Foreign object in suction line
12. Plunger packing worn
13. Pump drive belts loose
14. Pressure regulator by-pass
valve open
15. Suction line valve closed
16.Drive pulley spinning on pump
TROUBLESHOOTING REFERENCE NUMBERS
REPAIR KITS
Page 6

REF # PART # DESCRIPTION
1 42-810-01 CRANK CASE
2 42-810-02 GASKET, CRANK CASE
3 42-810-03 COVER, CRANK CASE
8 & 9 42-810-04 OIL GAUGE & O-RING
6 42-810-05 PLUG, FUEL DRAIN
7 42-810-06 O-RING
10 42-810-07 SCREW
18 42-810-09 PLUNGER COVER
4 42-810-10 OIL CAP
5 42-810-11 O-RING
13 42-810-12 PIN
14 42-810-13 BED, CRANK CASE
15 42-810-14 BOLT
16 42-810-15 WASHER, SPRING
17 42-810-16 WASHER
21 42-810-21 CRANK SHAFT
22 42-810-22 CONNECTING ROD ASS’Y
25 42-810-25 PLUNGER PIN
26 42-810-26 CERAMIC PLUNGER ASS’Y
27 42-810-27 BEARING
28 42-810-28 OIL SEAL, CRANK SHAFT
29A 42-810-29A COVER, OIL SEAL –A
29B 42-810-29B COVER, OIL SEAL –B
30 42-810-30 SCREW
31 42-810-31 KEY
32 42-810-32 PULLEY
33 42-810-33 BOLT
34 42-810-34 WASHER, SPRING
35 42-810-35 WASHER
12 42-810-41 OIL SEAL, PLUNGER
Page 7

REF # PART # DESCRIPTION
43 42-810-43 STOPPING RING, WATER
44 42-810-44 GRAND (Crown Nut)
45 42-810-45 GREASE PACKING
46 42-810-46 GREASE RING
47 42-810-47 V-PACKING
48 42-810-48 V-PACKING SEAT
49 42-810-49 CYLINDER
50 42-810-50 GREASE CUP
51 42-810-51 WASHER, SPRING
52 42-810-52 BOLT
53 42-810-53 VALVE ASSY
54 42-810-54 BOX, VALVE
55 42-810-55 SPRING, VALVE
56 42-810-56 FLAT, VALVE
57 42-810-57 SEAT, VALVE
59 42-810-59 SEAL, VALVE
60 42-810-60 SUCTION METAL
61 42-810-61 WASHER, SPRING
62 42-810-62 BOLT
63 42-810-63 STOPPER, GRAND
64 42-810-64 SCREW
44-50 42-810-65 CYLINDER ASS’Y
69 42-810-69 PLUG, WATER DRAIN
71 42-810-71 DISCHARGE METAL
72 42-810-72 BOLT
74 42-810-74 PACKING
75 42-810-75 AIR CHAMBER
76 42-810-76 WASHER, SPRING
77 42-810-77 PACKING
78 42-810-78 WASHER
79 42-810-79 COUPLING
71,74,75,77-79 42-810-80 DISCHARGE METAL ASS’Y
Page 8

1 1 4
1 1 5
1 1 7
1 1 8
1 2 1
1 1 9
1 2 2
1 2 0
1 2 4
1 2 3
1 1 6
1 0 1
1 1 1
1 0 8
1 0 3
1 0 4
1 3 2
1 3 1
1 1 0
1 1 3
1 3 3
1 0 2
1 1 2
4 3 -8 1 0 -2 0 0 R e g u la to r A s s 'y
79
77
61
52
78
62
50
64
47
63
46
45
47
P a c k in g
R e p a ir
K it
44
47
6072
4849
69
54
53
55
56
59
57
V a lv e
A s s 'y
74
71
75
51
4 2 -8 1 0 -8 0
D is c h a rg e M e ta l A s s 'y
28
2 9 B
27
21
22
27
31
C o n n e c tin g R o d A s s 'y
43
25
26
C e ra m ic
P lu n g e r A s s 'y
28
30
32
33
35
34
2 9 A
Page 9

1 1 4
1 1 5
1 1 7
1 1 8
1 2 1
1 1 9
1 2 2
1 2 0
1 2 4
1 2 3
1 1 6
1 0 1
1 1 1
1 0 8
1 0 3
1 0 4
1 3 2
1 3 1
1 1 0
1 1 3
1 3 3
1 0 2
1 1 2
4 3 -8 1 0 - 2 0 0 R e g u la to r A s s 'y
79
77
61
52
78
62
50
64
47
63
46
45
47
P a c k in g
R e p a ir
K it
44
47
6072
4849
69
54
53
55
56
59
57
V a lv e
A s s 'y
74
71
75
51
4 2 -8 1 0 -8 0
D is c h a rg e M e ta l A s s 'y
28
2 9 B
27
21
22
27
31
C o n n e c tin g R o d A s s 'y
43
25
26
C e ra m ic
P lu n g e r A s s 'y
28
30
32
33
35
34
2 9 A
Page 10

1401 Pace Rd. Pocahontas, AR 72455 800-462-2005
WWW.GNCINDUSTRIES.COM [email protected]