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16

308639

Service

Disassembly

1.

Relieve the pressure.

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 9.

WARNING

Some of the pump parts and assemblies are heavy.
Use proper lifting equipment and techniques.

2.

Remove the manifolds and disassemble the ball
check valves as explained in Ball Check Valve
Repair
 on page 14.

3.

Using  a 15-mm socket wrench, remove the
screws (54), and pull the fluid covers off the pump.
See Fig. 7.

For steps 4 to 9, see Fig. 8.

4.

Using 15/16-in. wrenches or sockets, loosen but
do not remove one of the diaphragm plate bolts
(62).  (whichever one turns)

5.

Remove the fluid-side plate (52), diaphragm (301),
and air-side plate (57).

For models with PTFE diaphragms, also remove
the shim (302) and back-up diaphragm (303).

6.

Pull the other diaphragm assembly and the
diaphragm shaft (14) out of the center housing (2).
Hold the shaft flats with a 7/8-in. wrench, and
remove the remaining fluid-side plate (52) from the
shaft.  Disassemble the remaining diaphragm
assembly.

7.

Inspect the diaphragm shaft (14) for wear or
scratches.  If it is damaged, inspect the bearings
(13) in place.  If the bearings are damaged, see
Removing and Replacing Bearings and Air
Gasket
 on page 18.

8.

Reach into the center housing (2) with an o-ring
pick, and hook the u-cup seals (15), then pull them
out of the housing.  This can be done with the
bearings (13) in place.

9.

Clean all parts and inspect for wear or damage.
Replace parts as needed.

Reassembly  (See Fig.  8)

1.

Install each u-cup seal (15) so the lips face away
from the center of the pump.  Lubricate the u-cup
seals.

2.

Install a diaphragm assembly on one end of the
shaft (14) as follows:

a.

Place a washer (63) and then a white o-ring
(64) on the diaphragm bolt (62).  The o-ring
may fit very snugly on the bolt.  Insert the bolt
into the fluid-side diaphragm plate (52) as
shown in Fig. 8.  Grease the bolt threads.

b.

Lay the diaphragm (301) into the grooves on
the fluid-side diaphragm plate (52) so that the
side marked AIR SIDE faces the center of the
pump.

For models with bolt–through PTFE
diaphragms, also install the shim (302) and
back-up diaphragm (303), as shown in Fig. 8.
Line up diaphragm tabs with tabs on air cover.
The bolts must go through the bolt–through
PTFE diaphragm.

c.

Place the air-side diaphragm plate (57) and
washer (63) over the bolt.  Screw the shaft
(14) onto the bolt handtight.

3.

Grease the length of the shaft (14), and slide it
through the center housing (2).

4.

Assemble the other diaphragm assembly to the
shaft as explained in step 2.

Step 5 is easiest if the pump is mounted vertically in a
vise.

5.

Torque the bolts (62) to 100 to 120 ft-lb (136 to
163 N

S

m).

WARNING

Failure to properly torque the diaphragm bolts (62)
could result in a bolt failure.  If a diaphragm bolt
fails, fluid is exhausted through the muffler.  See
Air Exhaust Ventilation on page 7.

6.

Install the fluid cover screws (54) hand tight.
Torque the screws to 55 to 60 ft-lb (75 to 81 N

S

m)

in a crossing pattern.  See Fig. 7. See Torque
Sequence
, page 25.

7.

Reassemble the ball check valves and manifolds
as explained on page 14.

Содержание husky 3275

Страница 1: ...275 Pump See page 20 This model is certified US and Foreign Patents Pending 308639L ENG Important Safety Instructions Read all warning and instructions in this manual Save these instructions Refer to...

Страница 2: ...malfunction Use only genuine Graco parts and accessories D Check all equipment regularly and repair or replace worn or damaged parts immediately D Never exceed the recommended working pressure or the...

Страница 3: ...e a fire or explosion and serious injury and property damage D To reduce the risk of static sparking ground the pump and all other equipment used or located in the work area Check your local electrica...

Страница 4: ...first day of operation retorque the fasteners Although pump use varies a general guideline is to retorque fasteners every two months Grounding WARNING ELECTRIC SHOCK HAZARD This pump must be grounded...

Страница 5: ...er air valve for accessories F Air line filter G Fluid suction hose H Fluid supply J Ball valve for releasing collected moisture L Fluid outlet hose N Air inlet port R Fluid inlet port S Fluid outlet...

Страница 6: ...t to relieve trapped air See the WARNING above Locate another bleed type master air valve upstream from all air line accessories and use it to isolate the accessories during cleaning and repair c The...

Страница 7: ...FLUID HAZARD Be sure to read and follow the USING HAZARDOUS FLUIDS and FIRE OR EXPLOSION HAZARD warnings on page 3 before you operate this pump Be sure the system is properly ventilated for your type...

Страница 8: ...valve required for pump C Air regulator D Air Line quick disconnect E Master air valve for accessories F Air line filter J Ball valve for releasing collected moisture P Muffler T Grounded air exhaust...

Страница 9: ...to be sure they are tight Be sure to use a compatible liquid thread sealant on all male threads 3 Place the suction tube if used in the fluid to be pumped NOTE If the inlet pressure to the pump is mor...

Страница 10: ...ve the pressure before storing it for any length of time Use a compatible solvent WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressur...

Страница 11: ...essure and clear valve Pump operates erratically Suction line is clogged Inspect clear Sticky or leaking check valve balls 201 Clean or replace See page 14 Diaphragm 301 is ruptured Replace See pages...

Страница 12: ...out of the cavity Using a needle nose pliers pull the pilot block 16 straight up and out of the cavity 4 Pull the two actuator pistons 7 out of the bearings 8 Remove the u cup seals 9 from the pistons...

Страница 13: ...ctuator piston 7 so the lips of the packings face the narrow end of the piston 6 Grease the u cup seals 9 Insert the actuator pistons in the bearings 8 wide end first Leave the narrow end of each pist...

Страница 14: ...ues 2 Using a 15 mm socket wrench remove the bolts 54 holding the outlet manifold 50 to the fluid covers 51 3 Remove the seats 101 balls 201 and o rings 102 from the fluid covers 51 4 Remove the inlet...

Страница 15: ...r equivalent NOTE A Fluid Section Service Kit is available See the Repair Kit Matrix on page 21 to find the correct kit for your pump Parts included in the kit are marked with an asterisk in the Parts...

Страница 16: ...nd inspect for wear or damage Replace parts as needed Reassembly See Fig 8 1 Install each u cup seal 15 so the lips face away from the center of the pump Lubricate the u cup seals 2 Install a diaphrag...

Страница 17: ...DE must face center housing 2 Grease Torque to 100 to 120 ft lb 136 to 163 NSm 4 06327 06328 52 57 13 13 15 1 14 2 1 1 14 14 52 57 303 5 3 3 3 4 4 1 1 301 2 62 62 63 64 63 63 64 06329A 2 Used only in...

Страница 18: ...ove the air cover gaskets 10 Always replace the gaskets with new ones 7 Use a bearing puller to remove the diaphragm shaft bearings 13 piston actuator bearings 8 and push pin bearings 17 Do not remove...

Страница 19: ...Service Fig 9 2 1 Press fit bearings flush with surface of center housing 2 Detail of Bearings 06331 1 1 2 10 27 Torque to 19 to 21 ft lb 26 to 28 NSm 06330 8 17 H 18 1 1 2 through hole must be on bo...

Страница 20: ...atrix do not correspond to the reference numbers in the Parts Drawing and Parts Lists Diaphragm Pump Air Motor Fluid Section Seats Balls Diaphragms 232505 aluminum aluminum TPE acetal TPE D for all pu...

Страница 21: ...hird digit is always K The remaining three digits define the materials of construction Parts included in the kit are marked with an asterisk in the Parts Drawing on page 22 for example 201 For example...

Страница 22: ...54 24 60 1 54 51 50 Included in Air Valve Service Kit 238765 which may be purchased separately Kit includes 2 of 113554 Included in Fluid Section Service Kit See the Repair Kit Matrix on page 21 to fi...

Страница 23: ...grounding 1 24 104582 WASHER tab 1 27 114193 SCREW mach hex washer head 16 Included in Air Valve Service Kit 238765 which may be purchased separately Kit includes 2 of 113554 Included in Fluid Section...

Страница 24: ...page 21 to find the correct kit for your pump Technical Data Maximum fluid working pressure 120 psi 0 8 MPa 8 bar Air operating range 20 to 120 psi 0 14 to 0 8 MPa 1 4 to 8 bar Maximum air consumption...

Страница 25: ...e fasteners 1 Left Right Fluid Cover Torque bolts to 55 60 ft lb 75 81 NSm SIDE VIEW 12 11 1 2 3 4 5 6 7 9 8 10 2 Inlet Manifold Torque bolts to 55 60 ft lb 75 81 NSm BOTTOM VIEW 14 13 16 18 15 17 3 O...

Страница 26: ...D 24 5 in 622 5 mm 15 25 in 387 5 mm 0 185 in 5 mm Four 0 84 in 21 5 mm holes ANSI Eight 0 84 in 21 5 mm holes DIN Section A A A A Flanges are Flat Faced 3 4 npt f Air Inlet 1 npt f Air Exhaust muffle...

Страница 27: ...Outlet Pressure psi MPa bar at a specific fluid flow gpm lpm and operating air pressure psi MPa bar 1 Locate fluid flow rate along bottom of chart 2 Follow vertical line up to intersection with select...

Страница 28: ...4 MPa 1 4 bar air pressure 1 4 4 2 5 6 Test Conditions Pump tested in water with inlet submerged 7 0 9 8 AIR CONSUMPTION scfm cubic meters min 341 454 681 1022 2 8 8 4 C D To find Pump Air Consumption...

Страница 29: ...29 308639 Notes...

Страница 30: ...the date of sale Graco makes no warranty and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection with accessories equipment materials or components...

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