OPERATOR’S MANUAL
67300-XXX
RELEASED:
REVISED:
(REV. F)
1-19-01
3-31-10
INCLUDING: SERVICE KITS, TROUBLESHOOTING, PARTS LIST,
DISASSEMBLY & REASSEMBLY.
CHOP-CHECK STYLE
LOWER PUMP ENDS
Also covers 637348-XXD service kits
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
SERVICE KITS
Use only genuine ARO® replacement parts to assure compatible
pressure rating and longest service life.
637348-XXD for general repair of 67300-XXX lower pump ends.
GENERAL DESCRIPTION
DO NOT EXCEED MAXIMUM OPERATING PRES-
WARNING
SURE AS INDICATED ON PUMP MODEL PLATE.
REFER TO GENERAL INFORMATION SHEET FOR
WARNING
ADDITIONAL SAFETY PRECAUTIONS AND IMPORTANT IN-
FORMATION.
This manual covers the lower pump section. It is one of four
documents which support an ARO pump. Replacement copies
of these forms are available upon request.
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650XXX-X Pump Model Operator’s Manual.
General Information for Air Operated or Hydraulically Oper-
ated Pumps.
Lower Pump End Operator’s Manual.
Air or Hydraulic Motor Operator’s Manual.
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The chop-check design provides for easy priming of the lower
foot valve. The double acting feature is standard in all ARO
industrial pumps. Material is delivered to the pump discharge
outlet on both the up and down stroke.
MAINTENANCE
Figure 1
The air / hydraulic motor is completely separate from the lower
pump end. This helps to keep the motor from being contaminated
by the material being pumped. Periodically, flush entire pump
system with a solvent that is compatible with the material being
pumped.
Keep solvent cup filled with this compatible solvent. This will keep
material from drying on the piston rod, which would drag thru the
packings, ruin them and eventually scour the piston rod.
Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreign matter during dis-
assembly and reassembly.
LOWER PUMP END DESCRIPTION CHART
67300 - X X X
Packing Material
C - UHMW-PE (upper and lower)
J - Polyurethane (upper)
- UHMW-PE (lower)
Before reassembling, lubricate parts as required. When assembling
“O” rings, or parts adjacent to “O” rings, exercise care to prevent
damage to “O”rings and “O”ring groove surface.
Spring Arrangement
3 - No spring
4 - Multiple wave spring
Plunger Type
D - Hardened stainless steel with hard chrome plating
Service Kit Selection
67300 - X X X
637348 - X X D
Example: Lower Pump End # 67300-J3D
Service Kit # 637348-J3D
Packing
Spring
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
© 2010 CCN 99907461
(800) 495-0276 FAX(800) 892-6276
PARTS LIST
36
47
57
55
54
28
34
1
3
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67300-C4D
67300-J3D
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14
5
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2
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17
64
5
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27
7
54
55
2
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57
43
89
88
10
64
25
37
65
21
44
18
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38
6
7
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22
15
9
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26
30
31
32
33
ASSEMBLY TORQUE REQUIREMENTS
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NOTE: DO NOT OVERTIGHTEN FASTENERS.
(12) Nut, tighten to 300 ft lbs (406.7 Nm).
LUBRICATION / SEALANTS
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Keep solvent cup filled with a lubricant such as Wet-
Sol "Plus" or equivalent.
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Apply Loctite® 242® to threads.
Apply PTFE tape to threads.
Apply Lubriplate ® FML-2 grease to threads.
Figure 2
67300-XXX (en)
Page 3 of 4
12. Using an open end wrench, tighten (14) upper gland nut.
13. Assemble (3) “O”ring to (2) lower gland.
14. Apply Loctite 242 to threads of (1) solvent cup and (2) lower
gland.
67300-C4D
67300-J3D
15. Assemble (1) solvent cup to (2) lower gland and tighten, using
a spanner wrench.
16. Apply PTFE tape to threads of (89) bleed valve. Assemble (89)
bleed valve to (88) valve body and assemble (88) valve body to
(6) outlet body. Tighten with outlet of (88) valve body pointed
downward.
17. Secure (6) outlet body and components in a vise, clamping on
flats of (26) plunger.
18. Assemble (54) female packing washer, five (55) “V” packings,
(57) male packing washer and (47) bowed washer to (28) valve
seat, securing with (36) valve seat nut. NOTE: Apply Loctite 242
to threads of (28) valve seat and (36) valve seat nut. NOTE: As-
semble “V”packings with lips facing up.
19. Apply Loctite 242 to threads of (34) valve rod and assemble to
(27) valve seat.
20. Assemble (28) valve seat and components to (26) plunger.
21. Apply Loctite 242 to threads of (34) valve rod and assemble
(34) valve rod thru (28) valve seat and thread into (26) plunger.
22. Using Wet Sol “Plus”, lubricate the i.d. of (9) tube and the o.d. of
(55) “V” packings and assemble (9) tube over “V” packings and
into (6) outlet body.
23. Apply Loctite 242 to threads of (30) primer rod and assemble
to (34) valve rod.
24. Apply Lubriplate to threaded holes of (15) pressure chamber
body and assemble three (10) studs to (15) pressure chamber
body.
25. Assemble (7) “O”ring into (25) check stop.
26. Assemble (6) outlet body, (9) tube and components to (15)
pressure chamber body, aligning holes in (6) outlet body with
(10) studs.
27. Lubricate threads of (10) studs with Lubriplate and assemble
three (17) lock washers and (12) nuts to (10) studs and tighten
to 300 ft lbs (407 Nm).
28. Assemble (31) primer plate and (32) primer button to (30)
primer rod, securing with (33) lock nut.
TROUBLE SHOOTING
No material at outlet (pump continually cycles).
Check material supply. Disconnect or shut off the air supply
and replenish the material, reconnect.
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Material on one stroke only (fast downstroke).
The (21) foot valve body may not be seating in the (22) check
valve seat (see lower pump disassembly). Remove the (21) foot
valve body from the (22) check valve seat, clean and inspect
the check valve seat area. If the foot valve or seat is damaged,
replace.
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Material on one stroke only (fast upstroke).
The (27) valve seat may not be seating in the (28) valve seat
(see lower pump disassembly). Remove (27) valve seat from
(28) valve seat, clean and inspect. If the (27) valve seat is dam-
aged, replace. Check for worn or damaged packings and seals.
Replace the packings and seals as necessary.
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ARO® is a registered trademark of Ingersoll-Rand Company
Loctite® and 242® are registered trademarks of Henkel Loctite Corporation
Lubriplate® is a registered trademark of Lubriplate Division (Fiske Brothers Refining Company)
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PN 97999-961
67300-XXX (en)
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