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Repair 

14

3A2851A

Repair

Required Tools

Rubber mallet

Set of adjustable wrenches

Torque wrench

Thread lubricant

Anti-seize lubricant

Loctite

®

 2760

 or equivalent

Replace the Lower

1.

Flush the pump, if possible. Stop the pump at the 
bottom of its stroke. Relieve the pressure, page 10.

2.

Disconnect the air hose.

3.

Hold the fluid outlet fitting (AD) with a wrench to 
keep it from loosening while you disconnect the fluid 
hose. See F

IG

. 3.

4.

Disconnect suction hose.

5.

Remove clip (108), and slide coupling cover (104) 
up to remove coupling (103).

6.

Hold the tie rod flats with a wrench to keep the rods 
(106) from turning. Unscrew the nuts (107). Remove 
the lower (102).

7.

To service the lower, refer to manual 311762, sup-
plied. To service the air motor, refer to the separate 
motor manual, supplied.

8.

Follow the steps in this procedure in reverse order to 
reconnect the lower.

NOTE: 

Torque nuts (107) to 50-60 ft-lb (68-81 N•m).

NOTICE

Use at least two people when lifting, moving, or dis-
connecting the pump. If disconnecting the lower, be 
sure to securely brace the pump, or have two people 
hold it while another disconnects it.

Before disconnecting the lower (102) from the 
motor (101), be sure to note the relative position of 
the pump's fluid outlet to the air inlet of the motor. If 
the motor does not require servicing, leave it 
attached to its mounting.

F

IG

. 3

TI8264a

103

104

108

TI8301a

106

107

102

101

AD

102

Summary of Contents for Xtreme 24N976

Page 1: ...on Steel Pumps with Hard Chrome Rod for Sealer Applications Part No 24N976 See page 2 for model information including maximum working pressure Important Safety Instructions Read all warnings and instr...

Page 2: ...ventive Maintenance Schedule 12 Wet Cups 12 Flushing 12 Corrosion Protection 12 Troubleshooting 13 Repair 14 Required Tools 14 Replace the Lower 14 Parts 15 Xtreme Pumps with NXT Air Motors 15 Dimensi...

Page 3: ...flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail Do not use pail...

Page 4: ...ables 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 area Comply with all appl...

Page 5: ...s by providing sufficient ventilation in the work area If sufficient ventilation is not available a supplied air respirator is required for everyone in the work area To prevent contact with isocyanate...

Page 6: ...rials flush the equipment mul tiple times to ensure it is thoroughly clean Always clean the fluid inlet strainers after flushing Check with your material manufacturer for chemical compatibility When c...

Page 7: ...ve metal pails placed on a grounded surface Do not place the pail on a nonconductive sur face such as paper or cardboard which interrupts grounding continuity To maintain grounding continuity when flu...

Page 8: ...d type air valve K isolates air line accessories for servicing Locate upstream from all other air line accessories Fluid Line Accessories Install the following accessories in the order shown in FIG 1...

Page 9: ...ter K Air Shutoff Valve L Fluid Filter M Fluid Drain Valve required N Electrically Conductive Fluid Supply Hose P Fluid Whip Hose R Gun Swivel S Airless Spray Gun T Fluid Suction Kit U Main Air Supply...

Page 10: ...ll air is pushed out and the pump and hoses are fully primed Release the gun trigger and lock the trigger safety latch The pump should stall against pressure when the trigger is released 6 With the pu...

Page 11: ...1A 11 Shutdown Relieve the pressure page 10 Stop the pump at the bottom of its stroke to prevent fluid from drying on the exposed displacement rod and damaging the throat packings FIG 2 Bleeder Valve...

Page 12: ...a metal part of the gun firmly to a grounded metal pail Trigger the gun until clean solvent dis penses 6 Remove gun from hose See gun manual to further clean gun 7 Follow Pressure Relief Procedure pag...

Page 13: ...D too small Clear hose or gun use hose with larger ID Air motor icing Open De Ice control see Air Motor manual Output low on down stroke Open or worn intake valve Clear or service intake valve High vi...

Page 14: ...06 from turning Unscrew the nuts 107 Remove the lower 102 7 To service the lower refer to manual 311762 sup plied To service the air motor refer to the separate motor manual supplied 8 Follow the step...

Page 15: ...ef Part Description Qty 101 N65RH0 MOTOR see 311238 1 102 24N942 LOWER 1 103 244819 COUPLING ASSY 1 104 197340 COVER coupling 2 105 15H392 ADAPTER 1 106 257150 ROD tie 3 107 101712 NUT 3 108 244820 CL...

Page 16: ...Wall Mount Dimensions TI8424a TI8425a Front View Side View A C D B E E F G NOTE Dimensions based on largest air motor and lower combination A B C D E F G 14 0 in 355 6 mm 17 75 in 450 6 mm 29 0 in 73...

Page 17: ...Mounting Hole Layouts 3A2851A 17 Mounting Hole Layouts NXT Model 6500 TI8069A 6 186 in 157 mm Three 5 8 11 Tie Rod Holes 6 186 in 157 mm Four 3 8 16 Mounting Holes...

Page 18: ...upplied Motor piston effective area See motor manual supplied Stroke length See motor manual supplied Lower effective area See lower manual supplied Maximum pump operating temperature See lower manual...

Page 19: ...specific flow lpm gpm and operating pressure A B C 1 Locate desired flow at bottom of chart 2 Follow vertical line up to intersection with selected operating pressure curve dashed line Follow left to...

Page 20: ...r 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 WARRANTIES EXPRES...

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