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308738

11

Service

Disconnecting the Displacement Pump

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the

Pressure Relief Procedure

 on page 8.

1.

Flush the pump if possible. Stop the pump at the
bottom of its stroke. Relieve the pressure.

2.

Disconnect the air and fluid hoses. Unscrew the
bung adapter (4) from the bung hole in the drum
cover and pull the pump out of the drum. Note the
relative position of the fluid outlet (N) to the air inlet
(P). See Fig. 3.

3.

Unscrew the tie rod locknuts (7) from the tie rods
(6). Remove the cotter pin (8). Carefully pull the
displacement pump (2) off the air motor (1).
Unscrew the displacement rod (R) from the air
motor (1). Inspect the o-ring (9).

4.

Refer to manual 307044 for displacement pump
service. To service the air motor, refer to manual
306982.

Reconnecting the Displacement Pump

1.

Lubricate the o-ring (9) and check that it is in place
on the displacement rod (R).

2.

Orient the fluid outlet (N) to the air inlet (P) as
noted in step 2 under 

Disconnecting the

Displacement Pump

.

 

Position the displacement

pump (2) on the tie rods (6). See Fig. 3.

3.

Screw the displacement rod (R) into the shaft of
the air motor (1) until the pin holes are aligned.
Install the cotter pin (8). Screw the locknuts (7)
onto the tie rods (6) loosely.

4.

Mount the pump and reconnect all hoses.
Reconnect the ground wire if it was disconnected
during repair. Tighten the packing nut (S). Fill the
wet-cup with Graco Throat Seal Liquid or
compatible solvent.

5.

Tighten the tie rod locknuts (7) evenly, and torque
to 27 to 41 N

S

m (20 to 30 ft-lb). Start the pump

and run it at about 2.8 bar (0.28 MPa, 40 psi) air
pressure, to check that it is operating properly.

1

2

Lubricate.

Fig. 3

Torque to 27 to 41 N

S

m (20 to 30 ft-lb).

07200

1

2

4

5

6

7

8

9

N

P

R

S

1

2

Содержание President A Series

Страница 1: ...O 9001 2 BUNG MOUNT 200 LITER 55 GALLON DRUM SIZE 10 1 Ratio Presidentr Pump Part No 239326 Series A 62 bar 6 2 MPa 900 psi Maximum Fluid Working Pressure 6 2 bar 0 62 MPa 90 psi Maximum Air Input Pre...

Страница 2: ...urpose If you are uncertain about usage call your Graco distributor D Do not alter or modify this equipment Use only genuine Graco parts and accessories D Check equipment daily Repair or replace worn...

Страница 3: ...gger safety operates before spraying dispensing D Lock the gun valve trigger safety when you stop spraying dispensing D Follow the Pressure Relief Procedure on page 8 whenever you are instructed to re...

Страница 4: ...including solvent rags and gasoline D Electrically disconnect all equipment in the spray dispense area D Extinguish all open flames or pilot lights in the spray dispense area D Do not smoke in the sp...

Страница 5: ...ut 13 mm 0 5 in off the bottom of the drum Loosen the drum vent plug to prevent forming a vacuum The pump dimensions are shown on page 13 Grounding WARNING FIRE AND EXPLOSION HAZARD Before operating t...

Страница 6: ...ulator F Air line filter G Bleed type master air valve for accessories H Electrically conductive air supply hose J Air line moisture trap and drain valve K Pump runaway valve L Fluid drain valve requi...

Страница 7: ...utlet Use of a short whip hose between the main fluid hose and the gun allows freer gun movement Air Line Accessories Install the following accessories in the order shown in Fig 2 using adapters as ne...

Страница 8: ...s If the fluid you are using may be contaminated by the oil flush it out with a compatible solvent before using the pump If the pump is being used to supply a circulating system allow the solvent to c...

Страница 9: ...he Pressure Relief Procedure on page 8 For overnight shutdown relieve the pressure and always stop the pump at the bottom of the stroke to prevent the fluid from drying on the exposed displacement rod...

Страница 10: ...fluid lines Clogged fluid line valves etc Clear Loose packing nut or worn throat packings Tighten packing nut see page 8 replace throat packings Damaged riser tube o rings Replace See manual 307044 Pu...

Страница 11: ...e the air motor refer to manual 306982 Reconnecting the Displacement Pump 1 Lubricate the o ring 9 and check that it is in place on the displacement rod R 2 Orient the fluid outlet N to the air inlet...

Страница 12: ...e manual 306982 1 2 220465 DISPLACEMENT PUMP ASSY see manual 307044 1 3 222308 BUNG ADAPTER consists of items 4 and 5 1 4 210834 ADAPTER 1 5 104542 CAPSCREW 1 6 166237 ROD tie carbon steel 89 mm 3 5 i...

Страница 13: ...308738 13 Dimensions F fluid intake E fluid outlet D air inlet A B 07199 G bung adapter Dimension Measurement A 883 mm 34 75 in B 1454 mm 57 25 in D 1 2 npt f E 3 4 npt f F 3 4 npt f G 2 in npt...

Страница 14: ...Refer to manual 307044 Sound Pressure Levels dBa measured at 1 meter from unit Input Air Pressures at 15 cycles per minute Air Motor 2 8 bar 0 28 MPa 40 psi 4 8 bar 0 48 MPa 70 psi 7 bar 0 7 MPa 100...

Страница 15: ...flow along bottom of chart 2 Follow vertical line up to intersection with selected fluid outlet pressure curve black Follow left to scale to read fluid outlet pressure To find pump air consumption m m...

Страница 16: ...ty shall be 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 ot...

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