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Repair

21

Replace the Cylinder and Piston
Seals

Disassembly

1.

Prepare the pump for repair, page 14.

2.

Remove the screws (38) and tube assemblies. See
F

IG

. 9.

3.

Disassemble the ball check valves, page 19. The flat
seals (55, 59) are included with this repair kit.

4.

Remove the air inlet fitting (40).

5.

Remove the screws (68) and the top (67) and bot-
tom (66) covers.

6.

Remove the screws (31) and fluid covers (1).

7.

Remove the diaphragms (14), page 15.

8.

Remove the four screws (38) and washers (37), the
air valve cover (36), and the gasket (35).

9.

Pry the air valve seat (33) out of the center housing
(5), using two screwdrivers inserted in the recesses
on the seat.

10. Remove the o-rings (80) from the housing.

11. Remove the cup (47) from the housing.

12. Remove the two clips (46) from the shaft (17).

13. Remove the screws (30), cylinder outer cover (11),

cylinder (7), and cylinder o-rings (22). Inspect the
inner wall of the cylinder for damage.

14. Pull the piston (16) and shaft out of the center hous-

ing (5). Remove the piston o-ring (23), quad ring
(32), and packing (26). Inspect the piston and shaft
for damage. If these parts need replacement,
unscrew the piston shaft (15) from the diaphragm
shaft (17) and remove the piston (16).

15. Remove the screws (29) and cylinder inner cover

(6). Remove the air valve tube (24) and o-ring (25)
from the inner cover. Do not lose the o-ring (25).

16. Remove the o-rings (28, 42) from the center hous-

ing (5). Do not lose the o-ring (28).

Reassembly

1.

Install the o-rings (42

, 28) in the housing (5).

2.

Install the o-rings (22

, 25) on the inner cover (6).

3.

Install the o-ring (23

), packing (26

), and quad

ring (32

) on the piston (16).

4.

Insert the air valve tube (24) through the inner cover
(6). Install the cover on the housing (5). Seat the
tube securely in the housing, oriented with the
spring pin (27). Torque the screws (29) to 8 N•m (5.9
ft-lb).

5.

If the piston (16) was removed from the piston shaft
(15), reassemble a washer (61), the piston, and
another washer on the shaft. Screw the diaphragm
shaft (17) onto the piston shaft.

6.

Lubricate the shaft (17) and slide it into the housing
(5), guiding the tube (24) through the hole in the pis-
ton. Install the two clips (46) on the shaft.

7.

Liberally grease the inside of the cylinder (7) and
the piston o-ring (23

). Seat the cylinder securely

on the inner cover (6).

8.

Install the o-ring (22

) on the outer cover (11).

Install the outer cover and torque the screws (30) to
15 N•m (11 ft-lb).

9.

Install the cup (47) in the center housing (5).

10. Install the o-rings (80). Check that the o-rings (43,

44) are in place on the air valve seat (33). Lubricate
the o-rings. Install the seat in the center housing (5),
oriented with the spring pin (34).

11. Install the gasket (35), cover (36), and screws and

washers (38, 37). Torque to 6 N•m (4.4 ft-lb).

Cylinder Seal Repair Kit 243155 is available.
Parts included in the kit are marked, for example
(22

). For the best results, use all parts in the kit.

To further disassemble and repair the air valve,
see page 17.

Lubricate all o-rings during reassembly.

Summary of Contents for TRITON 3D350HP

Page 1: ...Air Operated Double Diaphragm Pump with BSPP Fittings Part No 253708 Series D 3 1 Ratio Air Operated Double Diaphragm Pump with npt Fittings 0 6 MPa 6 bar 88 psi Maximum Air Input Pressure 1 8 MPa 18...

Page 2: ...11 Lubrication 11 Flushing and Storage 11 Tighten Threaded Connections 11 Preventive Maintenance Schedule 11 Troubleshooting 12 Repair 14 Prepare the Pump for Repair 14 General Repair Notes 14 Fault...

Page 3: ...g protection when operating this equipment Comply with all applicable local state and national fire electrical and safety regulations PRESSURIZED EQUIPMENT HAZARD Spray from the gun hose leaks or rupt...

Page 4: ...pump in an appropriate container to catch the fluid if a diaphragm ruptures MOVING PARTS HAZARD Moving parts such as the diaphragm shaft can pinch or amputate your fingers Before servicing the equipm...

Page 5: ...are adequately sized and pressure rated for your system Reference numbers and letters in parentheses refer to the reference numbers in the figures and the parts list on page 23 Tighten Threaded Connec...

Page 6: ...during operation 3 Using the wall bracket B as a template drill 5 8 in mounting holes in the wall See page 27 for a wall mounting diagram Mount the bracket 1 2 1 5 m 4 5 ft above the floor 4 Attach t...

Page 7: ...upstream from all other air line accessories 2 Install a grounded flexible air hose A between the accessories and the pump air inlet See Technical Data on page 25 to determine the air inlet size of yo...

Page 8: ...Supply G Fluid Drain Valve H Fluid Shutoff Valve J Fluid Line K Mounting Bracket L Internal Air Relief Valve M Muffler N Air Line Quick Disconnect Coupler P Pump Air Piston R Pump Diaphragms S Pump B...

Page 9: ...No 238909 Air and fluid hoses Use only electrically conductive hoses Air compressor Follow manufacturer s recommen dations Fluid supply drum Follow your local code All solvent pails used when flushin...

Page 10: ...7 With the pump air regulator C closed open the bleed type master air valve B 8 If the fluid hose has a dispensing device hold it open while continuing with the following step 9 Slowly open the air re...

Page 11: ...Check and re torque all screws and fasteners at least every two months Re torque the fluid cover screws first followed by the manifold screws NOTE Before using pump loosen fluid cover screws 31 1 2 t...

Page 12: ...cky or leaking check valves Clean or replace balls 56 and seats 53 See page 19 Ruptured diaphragm 14 Replace See page 15 Do not exceed maximum air input pressure Restricted exhaust Remove restriction...

Page 13: ...ll Check Diaphragm Air Piston Inlet Ball Check Outlet Manifold Tube Fluid Inlet Inlet Manifold Tube Outlet Ball Check Diaphragm Inlet Ball Check Diaphragm Shaft Optional Fluid Outlet Air Valve Air Val...

Page 14: ...ditional damage Tools Required 4 5 6 8 and 10 mm allen wrenches 13 mm open end wrench 28 mm open end wrench or adjustable wrench two flat blade screwdrivers 2 Phillips screwdriver internal snap ring p...

Page 15: ...e new diaphragm 14 into the shaft by hand See FIG 6 2 Depress the first diaphragm 14 using the dia phragm repair tool and install the opposite dia phragm 14 by hand 3 Remove the o rings 13 from the fl...

Page 16: ...Repair 16 FIG 6 Replace the Diaphragms 13 12 13 14 13 12 13 14 31 31 1 40 1 2 3 Lubricate Torque to 20 N m 15 ft lb 1 2 2 1 1 1 1 2 TI1959A 4 4 TI8632A TI8633A Diaphragm Repair Tool 261695...

Page 17: ...l the o rings 19 20 on the three bearings 18 Install the bearings in the center housing 5 cylinder inner cover 6 and cylinder outer cover 11 Secure with the clips 21 2 Install the carriage 45 in the c...

Page 18: ...Check that the felt strips 71 are in place on the inside of the top 67 and bottom 66 covers Install the covers The hole for the air inlet fitting must align with the port in the center housing 5 Tight...

Page 19: ...59 and seal 58 4 Install the inlet tube assembly Torque the screws 38 to 10 N m 7 4 ft lb Ball Check Valve Repair Kit 243154 is available Parts included in the kit are marked for example 56 For the b...

Page 20: ...pair 20 FIG 8 Replace the Ball Check Valves 12 38 2 65 57 56 55 54 59 53 65 57 56 53 59 58 3 38 12 4 38 58 53 56 57 65 59 65 57 56 55 54 38 4 59 53 59 59 Torque to 10 N m 7 4 ft lb 1 1 1 1 1 TI1960A 1...

Page 21: ...hous ing 5 Do not lose the o ring 28 Reassembly 1 Install the o rings 42 28 in the housing 5 2 Install the o rings 22 25 on the inner cover 6 3 Install the o ring 23 packing 26 and quad ring 32 on th...

Page 22: ...l the flat seals 55 59 and the other ball check parts see page 19 17 Install the tube assemblies Torque the screws 38 to 10 N m 7 4 ft lb FIG 9 Replace the Cylinder and Piston Seals 38 37 36 35 33 67...

Page 23: ...67 5 13 12 13 38 2 65 57 56 55 54 59 53 1 31 65 57 56 53 59 58 3 38 13 12 13 68 66 68 7 22 22 11 20 18 19 21 14 4 38 10 9 58 59 53 56 57 65 31 1 59 65 57 56 55 54 53 21 19 18 20 29 30 17 46 28 6 25 24...

Page 24: ...21 CLIP c spring 3 22 O RING nitrile 2 23 O RING nitrile 1 24 15A031 TUBE air valve 1 25 117006 O RING nitrile 1 26 PACKING PTFE 1 27 117023 PIN spring 1 28 117012 O RING fluoroelastomer 2 29 117028 S...

Page 25: ...le 11 oz cycle Operating temperature range 10 80 C 50 176 F Dry suction lift 2 5 m 8 2 ft Wet suction lift 6 7 m 22 ft Air inlet size Model 253707 1 2 BSPP f Model 253708 1 2 npt f Fluid inlet size Mo...

Page 26: ...6 0 4 0 2 7 6 15 1 22 7 30 2 37 8 45 4 52 9 60 5 68 0 75 6 83 2 Key A 0 6 MPa 6 bar 88 psi B 0 4 MPa 4 bar 60 psi C 0 2 MPa 2 bar 30 psi Fluid Flow Air Consumption A B C C B A 2 4 6 8 10 12 14 16 18 2...

Page 27: ...oles Air Inlet see page 25 for sizes Fluid Inlet see page 25 for sizes Fluid Outlet see page 25 for sizes TI1964A TI1963A 100 mm 4 in 260 mm 10 25 in TI2118 Four 9 mm 0 35 in diameter holes to mount t...

Page 28: ...p repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED...

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