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Repair

3A6938D

13

Repair

Disassembly

1.

Relieve the pressure. Follow the 

Pressure Relief 

Procedure

, pag9.

2.

Disconnect the hoses from the lower and plug the 
ends to prevent fluid contamination.

3.

Remove the 2-piece shield (22) by inserting a 
screwdriver straight into the slot, and using it as a 
lever to release the tab. Repeat for all tabs. 

Do not

 

use the screwdriver to pry the shields apart.

 

See 

F

IG

. 3.

4.

Loosen the coupling nut (3) and remove the collars 
(4). Remove the coupling nut from the piston rod 
(R). Unscrew the lock nuts (7) from the tie rods (6). 
Separate the motor (1) and lower (2). See 

Parts

, on 

page 16.

5.

To repair the air motor or lower, see the separate 
manuals listed unde

Related Manuals

, on page 2.

Reassembly

1.

If the coupling adapter (5) and tie rods (6) have not 
been disassembled from the motor, skip to step 2.

If the coupling adapter (5) and tie rods (6) have 
been disassembled from the motor, follow these 
steps:

a.

Screw the tie rods (6) into the motor (1) and 

torque to 50-60 ft-lb (68-81 N•m). See 

Parts

page 16.

b.

Apply red Loctite

®

 to the coupling adapter (5).

c.

Screw the coupling adapter (5) into the motor 

shaft and torque to 90-100 ft-lb. (122-136 N•m).

d.

Continue to step 2.

2.

Assemble the coupling nut (3) over the piston rod 
(R).

3.

Orient the lower (2) to the motor (1). Position the 
lower on the tie rods (6). 

4.

If you are reusing lock nuts (7) and the nylon of the 
lock nut is worn or cut, add blue Loctite to the tie rod 
threads.

5.

Screw the lock nuts (7) onto the tie rods. Leave the 
lock nuts (7) loose enough to allow the lower to 
move so that it can be aligned correctly. 

6.

Insert the collars (4) into the coupling nut (3). 
Tighten the coupling nut onto the coupling adapter 
(5) and torque to 90-100 ft-lb. (122-136 N•m) to 
align the motor shaft with the piston rod (R).

7.

Tighten the lock nuts (7) and torque to 50-60 ft-lb 
(68-81 N•m).

This equipment stays pressurized until pressure is 
manually relieved. To help prevent serious injury from 
splashing fluid and moving parts, follow the 

Pressure 

Relief Procedure

 before servicing the equipment.

F

IG

. 3. Shield Disassembly

ti15759a

ti15770a

Step 1

Step 2

Summary of Contents for High-Flo JS17A8

Page 1: ...Do not use for flushing or purging lines with caustics acids abrasive line strippers and other similar fluids For professional use only See Models page 3 for model information Important Safety Instruc...

Page 2: ...or 2000cc with Sealed 4 Ball Lowers 16 High Flo Plus Pumps 2500cc 3000cc or 4000cc with Sealed 4 Ball Lowers 16 High Flo Pumps with 1500cc or 2000cc Open Wet Cup 4 Ball Lowers 18 High Flo Pumps with...

Page 3: ...ement parts see page 16 Not all lower combinations are available Consult the product brochure for available models J S 17 A 8 First Digit Second Digit Third and Fourth Digit Fifth Digit Sixth Digit Pu...

Page 4: ...rags and gasoline Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Use only grounded hoses Hold gun firmly to side of grounded pail when tri...

Page 5: ...rmation Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work...

Page 6: ...imum diameter D Fluid Shutoff Valve E Fluid Line F Pump G Surge Tank H Air Shutoff Valve bleed type J Air Supply Line K Air Line Filter L Air Regulator and Gauge M Master Air Valve bleed type N Fluid...

Page 7: ...Fluid supply container follow local code Object being sprayed follow local code Solvent pails used when flushing follow local code Use only conductive metal pails placed on a grounded surface Do not p...

Page 8: ...ories Air line filter K removes harmful dirt and mois ture from compressed air supply Pump air regulator L to control pump speed and outlet pressure Locate close to the pump Bleed type master air valv...

Page 9: ...your pump has DataTrak see your separate XL air motor manual for DataTrak instructions 7 DataTrak equipped units with runaway protection only enable the prime flush function by pushing the prime flush...

Page 10: ...ke before the air motor changes over Shutdown Follow the Pressure Relief Procedure page 9 Always flush the pump before the fluid dries on the dis placement rod See Flushing the Fluid Supply Lines on p...

Page 11: ...dition and to prevent system over pressurization Close the fluid shutoff valve D closest to the pump on the down stroke and be sure that the pump stalls Open the fluid shutoff valve to restart the pum...

Page 12: ...heck valves Check and repair Worn piston packings Replace See lower manual No output Improperly installed ball check valves Check and repair Pump operates erratically Exhausted fluid supply Refill and...

Page 13: ...into the motor 1 and torque to 50 60 ft lb 68 81 N m See Parts page 16 b Apply red Loctite to the coupling adapter 5 c Screw the coupling adapter 5 into the motor shaft and torque to 90 100 ft lb 122...

Page 14: ...lds together 9 Flush and test the pump before reinstalling it in the system Connect hoses and flush the pump While it is pressurized check for smooth operation and leaks Adjust or repair as necessary...

Page 15: ...Repair 3A6938D 15...

Page 16: ...Flo Plus Pumps 2500cc 3000cc or 4000cc with Sealed 4 Ball Lowers 1 5 4 2 6 7 3 4 2 3 1 1 2 Torque to 50 60 ft lb 68 81 N m Apply lubricant Torque to 90 100 ft lb 122 136 N m Apply red Loctite and torq...

Page 17: ...369 ADAPTER coupling M22 x 1 5 1 6 16X771 TIE ROD 14 37 in 365 mm 12 09 in 307 09 mm between shoulders 3 7 108683 NUT lock hex 9 16 12 unc 3 10 See pages 20 21 KIT DataTrak with solenoid not shown 1 1...

Page 18: ...rs High Flo Pumps with 750cc Sealed 4 Ball Lowers 1 5 4 7 3 22 57 2 R Torque to 50 60 ft lb 68 81 N m Apply lubricant Torque to 90 100 ft lb 122 136 N m Apply red Loctite and torque to 140 150 ft lb 1...

Page 19: ...T coupling M22 x 1 5 1 4 184128 COLLAR coupling 2 5 15H369 ADAPTER coupling M22 x 1 5 1 6 15G924 TIE ROD 14 37 in 365 mm 12 09 in 307 09 mm between shoulders 3 7 108683 NUT lock hex 9 16 12 unc 3 10 S...

Page 20: ...8 A 24X550 JS28C8 A XL34R0 N A JS28D8 A 24X550 Ref 1 Ref 2 Ref 10 Pump See page 3 Pump Series XL Air Motor See 3A5423 4 Ball Lower See 3A5348 DataTrak JS33A8 A XL65L0 17Z389 N A JS33B8 A 24X550 JS33C8...

Page 21: ...JS45A9 A XL34L0 17K670 Open N A JS45B9 A 24X550 JS45C9 A XL34R0 N A JS45D9 A 24X550 JC45A9 A XL34L0 17K662 Open N A JC45B9 A 24X550 Ref 1 Ref 2 Ref 10 Pump See page 3 Pump Series XL Air Motor See 3A5...

Page 22: ...4000cc 156 71 Jx44x8 3000cc 154 70 Jx53x8 2500cc 153 69 Jx35x0 XL3400 2000cc 43 1 1094 28 7 729 13 9 353 106 48 Jx35x8 2000cc 52 6 1336 37 8 960 25 7 653 125 57 Jx35x9 2000cc 42 8 1087 28 4 721 14 1 3...

Page 23: ...Motor Mounting Hole Diagrams 3A6938D 23 Motor Mounting Hole Diagrams XL Model 3400 XL Model 6500...

Page 24: ...Air consumption XL 3400 Air Motor 2500cc Lower Jx28xx FLUID PRESSURE FLUID FLOW IN GPM LPM AIR FLOW psi MPa bar SCFM m3 min CYCLES PER MIN NOTE See Models on page 3 for your pump part number 0 0 0 5...

Page 25: ...A A B B C C XL 6500 Air Motor 3000cc Lower Jx44xx FLUID PRESSURE FLUID FLOW IN GPM LPM AIR FLOW psi MPa bar SCFM m3 min CYCLES PER MIN 0 0 0 10 0 28 20 0 57 30 0 85 40 1 13 50 1 42 60 1 70 70 1 98 80...

Page 26: ...0 0 60 1 68 40 1 12 20 0 56 0 B A C B A C 50 1 4 30 0 84 10 0 28 350 2 4 24 250 1 7 17 150 1 0 10 50 0 3 3 SCFM m3 min 0 4 8 11 14 17 21 24 CYCLES PER MIN 0 5 10 15 20 24 28 32 CYCLES PER MIN Key A 10...

Page 27: ...cycles per minute Motor Air Inlet Size See manual 3A5423 Fluid Inlet and Outlet Sizes See manual 333022 or manual 3A3452 Air Consumption See Performance Charts page 24 Dimensions See Dimensions page 2...

Page 28: ...n material or workmanship 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 WARRA...

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