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306674U        7

Operation

WARNING

D

This pump is designed to be used ONLY in
pumping non-corrosive and non-abrasive lubri-
cants and greases. Any other use of this pump
can cause unsafe operating conditions and
result in component rupture, fire, or explosion,
which can can cause serious bodily injury,
including injection.

D

Moving parts can pinch or amputate your fin-
gers or other body parts. When the pump is
operating, the priming piston (located at the
pump intake) and the air motor piston (located
behind the air motor plates) move. NEVER
Operate the pump with the air motor plates
removed, and keep your fingers and hands
away from the priming piston.

Pressure Relief Procedure

WARNING

SKIN INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause 
serious injury. To reduce the risk of an

injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you

D

Are instructed to relieve the pressure

D

Stop dispensing

D

Check or service any of the system equipment

D

Install or clean the dispensing nozzles

1.

Close the air regulators.

2.

Close the supply pump’s bleed-type master air
valve (required in this system).

3.

Open the dispensing valve until pressure is fully
relieved.

If you suspect that the dispensing valve, extension, or
grease fitting coupler is clogged, or that pressure has
not been fully relieved after following the steps above,
VERY SLOWLY loosen the coupler or hose end cou-
pling and relieve pressure gradually, then loosen
completely, then clear the clog.

Startup and Adjustment

Open the bleed-type master air valve. Open the dis-
pensing valve, and slowly open the air regulator until
the pump is running smoothly. After all the air is
purged, close the dispensing valve.  The pump will
start and stop as the valve is opened and closed.

CAUTION

Never allow the pump to run dry of the fluid being
pumped. A dry pump quickly accelerates to a high
speed and may damage itself. If your pump acceler-
ates quickly or is running too fast, stop it immediately
and check the fluid supply. If the supply container is
empty and air has been pumped into the lines, prime
the pump and lines with fluid, or flush the pump and
leave it filled with a compatible solvent. Be sure to
eliminate all air from the fluid system.

Use the air regulator (E) to control the pump speed
and fluid pressure. See Fig. 2. Always use the lowest
pressure necessary to obtain the desired results.

When you are finished using the pump for the day,
always follow the Pressure Relief Procedure at left.

Maintenance

The Accessory air line oiler (D) provides automatic air
motor lubrication. For daily manual lubrication, discon-
nect the air hose, place about 15 drops of light ma-
chine oil in the air inlet, reconnect the hose, and turn
on the air supply to blow oil into the motor.

Summary of Contents for Fire-Ball 425 205394

Page 1: ...si 1 0 MPa 10 bar Maximum Air Input Pressure Model 205394 Series E Model 205395 Series N 306674U WARNING This pump is designed to be used only in pumping non corrosive and non abrasive oils and lubric...

Page 2: ...e equipment only for its intended purpose If you are not sure call your Graco distributor D Do not alter or modify this equipment D Check equipment daily Repair or replace worn or damaged parts immedi...

Page 3: ...s with your hand body glove or rag D Do not blow back fluid this is not an air spray system D Use only extensions and couplings that are designed for use with your dispensing valve D Follow the Pressu...

Page 4: ...e 1 1 1 trichloroethane methylene chloride other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment Such use could result in a chemical reaction with...

Page 5: ...per or cardboard which interrupts the grounding continu ity D To maintain grounding continuity when flushing or relieving pressure hold a metal part of the dispens ing gun firmly to the side of a grou...

Page 6: ...lator E to control pump speed WARNING A bleed type master air valve B is required to shut off and relieve air pressure that may be trapped in the air motor Trapped air could cause the pump to cycle un...

Page 7: ...tting coupler is clogged or that pressure has not been fully relieved after following the steps above VERY SLOWLY loosen the coupler or hose end cou pling and relieve pressure gradually then loosen co...

Page 8: ...motor gasket packing seal etc Service air motor Erratic pump operation Exhausted fluid supply Refill and reprime or flush p p p Held open or worn intake valve or piston packings Clear service Pump ope...

Page 9: ...306674U 9 Notes...

Page 10: ...70 78 73 1 69 72 79 2 66 80n 59 62 61n 67 62 68 Lips of v packings must face up Torque to 50 to 70 ft lb 68 to 95 N m 06336 72 1 4 ROD 71 Included in Repair Kit 239320 which may be purchased separate...

Page 11: ...en the packing housing 70 Unscrew the riser tube 79 from the air motor 5 Remove the packing housing 70 from the riser tube 79 and remove the packings from the housing 6 Hold the intake valve housing 6...

Page 12: ...ke Unscrew the cylinder cap nut 31 from the cylinder 32 Pull up on the cap nut Grip the trip rod 1 with padded pliers 207579 and screw the cap nut off the trip rod See Fig 4 CAUTION Do not damage the...

Page 13: ...the trip rod yoke 14 valve actuator 13 and trip rod 1 Check the exhaust valve poppets 38 for cracks NOTE To remove the exhaust valve poppets 38 stretch them out and cut with a sharp knife 8 Pull the p...

Page 14: ...opera tion of the pump Throat Packing Service The piston in the air motor located behind the air motor plates moves when air is supplied to the motor Moving parts can pinch or amputate your fingers or...

Page 15: ...ing and lower the piston into the base Reinstall the plate 36 and cylinder 32 Reassemble the air motor to the displacement pump 10 Torque the outlet adapter 42 to 45 to 55 ft lb 61 to 75 N m CAUTION W...

Page 16: ...ries N 400 lb 180 kg drum length 1 2 3 4 5 6 7 8 9 62 75 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 58 36 37 38 40 42 44 46 48 49 52 53 56 57 33 59 60 61 62 63 64 65 66 67 68 69 70 71...

Page 17: ...697 WASHER thrust 1 45 159047 NUT packing 1 46 159048 BEARING brass 1 47 159306 GLAND male 1 48 159307 GLAND female 1 49 159308 V PACKING nitrile rubber 4 52 162553 ROD piston 1 53 116343 SCREW ground...

Page 18: ...id Outlet 41 1 4 26 11 16 1048 mm 678 mm 14 9 16 369 9 mm Priming Piston 6 1 2 165 1 mm Diameter 3 8 npt Fluid Outlet 48 3 16 33 5 8 1224 mm 854 1 mm 14 9 16 369 9 mm 1 2 npt f Air Inlet 1 2 npt f Air...

Page 19: ...prox 19 cfm 0 53 m min at 1 gpm 3 8 lpm at 70 psi 0 48 MPa 4 8 bar Wetted parts steel brass aluminum leather Weight Model No 205394 34 lb 15 kg Model No 205395 37 lb 17 kg Sound Pressure Level measure...

Page 20: ...as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incident...

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