OPERATOR’S MANUAL
67314-B
RELEASED: 11-10-06
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, PARTS, TROUBLESHOOTING
REVISED:
5-17-10
(REV. 03)
4.125 SQ.” MOTOR
65 - 2000 P.S.I. RANGE
67314-B
HYDRAULIC POWER MOTOR
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 compat-
Hydraulic Inlet
ible pressure rating and longest service life.
637450 pump repair kit, includes the necessary soft parts for
normal service of the entire pump.
Hydraulic Outlet
SPECIFICATIONS
B
Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67314-B
Type . . . . . . . . . . . . . . . . . . . . Hydraulic Operated Power Motor
Motor Size . . . . . . . . . . . . . . . . . . . . . . . . . . 4.125 sq.”(26.6 sq. cm)
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6”(152 mm)
Hydraulic Inlet (female) . . . . . . . . . . . . . 1/2 - 14 N.P.T.F. - 2
Hydraulic Outlet (female) . . . . . . . . . . . 3/4 - 14 N.P.S.M.
Pump Construction . . . . . . . . . . . . . . . . . Carbon Steel
Dimension “A” . . . . . . . . . . . . . . . . . . . . . . 20-13/32”(518.2 mm)
Dimension “B” . . . . . . . . . . . . . . . . . . . . . . 15-11/16”(397.8 mm)
“C”Weep Hole . . . . . . . . . . . . . . . . . . . . . . 1/8 - 27 N.P.T.F. - 1
Motor Diameter. . . . . . . . . . . . . . . . . . . . . 8”(203.2 mm)
Maximum Temperature Limits . . . . . . 130° F (54° C)
Mounting Bracket available . . . . . . . . 95933
A
C
Figure 1
OPERATING AND SAFETY PRECAUTIONS
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37.75 lbs (17.1 kgs)
WARNING
READ THE GENERAL INFORMATION MAN-
PERFORMANCE
UAL INCLUDED FOR ADDITIONAL OPERATING AND
SAFETY PRECAUTIONS AND OTHER IMPORTANT IN-
FORMATION.
Inlet Pressure Range. . . . . . . . 65 - 2000 p.s.i. (4.5 - 137.9 bar)
Required H-power @ 50 c.p.m. . . . . . . 3.2 @ 1200 (82.8 bar)
Hydraulic flow required @ 50 c.p.m. 11 g.p.m. (41.6 l.p.m.)
Maximum Thrust generated . . . . . . . . 8250 lbs
WARNING
EXCESSIVE MATERIAL PRESSURE. Can cause
equipment failure resulting in severe injury or prop-
erty damage. Do not exceed the maximum material
pressure of any component in the system.
Maximum recommended cycles / minute. . . . . . . . . 50
Noise Level . . . . . . . . . . . . . . . . . . . . . . . . . N/A
WARNING
A pressure relief valve must be used to pre-
GENERAL DESCRIPTION
vent over-pressurization of the system and possible
component rupture.
WARNING
The 4.125 square inch hydraulic motor is a general purpose
power unit and is used on many ARO industrial 2-ball, 4-ball
and chop-check pumps. It utilizes tie rod type construction
for serviceability and connects to the various lower pump
ends by tie rods.
Due to frictional losses in the system, a greater horsepower
is required to run the motor. Power supplies generating less
than shown as required in the Performance Specifications
above will work with the motor but at a reduced pressure or
cycle rate.
Excessive hydraulic oil temperature can
cause fire. The unit is rated for operation up to 130° F
(54° C). Be sure return lines are sized larger than sup-
ply lines and similarly pressure rated.
WARNING
Never service or disassemble the unit or
unit components without relieving hydraulic system
pressure ꢀrst. The high pressures involved could
cause serious injury.
NOTE: If this pump was purchased separately (not part
of a system), consult your sales representative for com-
patible dispensing accessories which will best match the
application. All accessories must be able to withstand the
maximum pressure developed by the pump.
A replacement warning label is available upon request,
pn \ 94576.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
© 2010
CCN 15267008
(800) 276-4658 FAX (800) 266-7016
PARTS LIST / 67314-B
1
45
20
3b
21
22
3a
2
19
)
‰
4a
(
7
8
5
38
6
™
37
35
44
)
39
32
33
34
9
40
4b
11
10
23
13
12
24
25
)
41
10
42
33
32
26
27
14
16
15
17
18
(
28
29
31
30
43
36
Figure 2
) TORQUE REQUIREMENTS (
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(3a, 3b) 90 - 110 in. lbs (10.2 - 12.4 Nm).
(14) 100 - 120 ft lbs (135.6 - 162.7 Nm).
(25) 100 - 120 ft lbs (135.6 - 162.7 Nm).
(37) 44 - 56 ft lbs (59.7 - 75.9 Nm).
LUBRICATION / SEALANTS
Apply Loctite 571 pipe thread sealant or equivalent.
Apply Loctite 572 sealant to threads.
™ Apply Loctite 271 to the middle 7 - 9 threads.
‰ See reassembly instruction step #5.
67314-B (en)
Page 3 of 4
DISASSEMBLY
REASSEMBLY
All threads are right hand. Refer to figure 2, page 3. These
procedures are for the installation of repair kit parts.
Disconnect power supply and relieve all system pressure
prior to servicing. Carefully remove the parts, inspect parts
for damage, nicks or excessive wear and determine if any
parts will need replacement.
1. Remove (1) top plug and remove (2) “O”ring.
2. Remove (8) trip plug and remove (5) ball, (38) spring fol-
lower, (6) spring and (7) “O”ring.
Thoroughly clean and lubricate all seals. Replace all soft
parts with new ones included in the repair kit.
1. Install (28) rod seal and (10) “O”ring into (26) motor base.
2. Install (30) wiper into (31) seal retainer and slip in (29)
bushing.
3. Slide (25, 22) piston rod assembly into (26) motor base
and retainer assembly from step #2 above.
4. Insert (21) “O” ring onto (22) piston rod and place (15)
piston on it.
3. Move piston rod to the fully retracted position and pull
(4a) spool out of (4b) sleeve through the top.
4. Using the flats on (18) trip rod to hold, remove and dis-
card (3a) nut. DO NOT RE-USE. The trip rod wrench flats
are only accessible through the port holes that retain the
(8) trip plug. This will require a narrow width open-end
wrench.
5. Assemble (45) retaining ring, (19) trip washer, (20) trip
spring and (19) trip washer to (18) trip rod, securing with
one (3b) nut. NOTE: Orient the two (3b) nuts such that
the flanges are facing each other. NOTE: (3b) nut to be
hand tight. While holding (18) trip rod on flats, assemble
(3b) nut to (18) trip rod and tighten to 90 - 110 in. lbs
(10.2 - 12.4 Nm).
6. Place (18, 19, 20, 45, 3b) shifter assembly into (22) piston
rod and thread (14) piston screw into (22) piston rod.
7. Torque (14) piston screw to 100 - 120 ft lbs (135.6 - 162.7
Nm) with (25) piston rod adapter in a heavy vise.
8. Put (17) seal and (16) wear ring on (15) piston.
9. Push (22) piston rod to fully extended position and place
(23) cylinder over the piston assembly.
NOTE: Be very careful when removing the spool from
the valve. The finish of this part is critical for proper
motor performance. Any nicks, scratches or dirt may
damage the set.
5. Remove (43) cap screws.
6. Slide (31) seal retainer, (29) bushing and (30) wiper off
(22) piston rod and (25) piston rod adapter.
7. Remove (37) tie rod nus and (35) washers.
8. Clamp (9) cylinder head and remove (26) motor base by
tapping with a soft hammer, then remove (10) “O” ring
and (28) polypack rod seal.
9. Remove (34) hydraulic tube from (9) cylinder head and
remove (32) “O”rings and (33) back-up rings.
10. Remove (22) piston rod assembly and (23) cylinder from
(9) cylinder head and remove (10) “O”ring.
10. Seat the (23) cylinder onto the motor base. NOTE: Petro-
leum jelly is recommended for ease of assembly on all“O”
rings and inside the cylinder.
11. Replace the three (13) “O”rings on (4b) valve sleeve.
12. Push (4b) valve sleeve / spool set straight into (9) cylin-
der head.
13. Place (11) sleeve washer behind (4b) valve sleeve and
retain this with (12) retaining ring.
11. Separate (22, 17, 21, 16, 15, 14) piston rod assembly from
(23) cylinder.
12. Remove (17) seal and (16) wear ring from (15) piston.
13. If further disassembly is required, such as removal of (22)
piston rod, (4) valve spool assembly, or (45, 20, 19, 18)
shifter assembly, see next section. (Order “O” rings sepa-
rately.)
14. Put two (33) back-up rings and two (32) “O” rings onto
(34) hydraulic tube with back-up rings on the hydraulic
tube first.
15. Push tube assembly (34, 33, 32) into (26) motor base.
16. Place (10) “O” ring on (9) cylinder head, lower (9) cylinder
head onto the (23) cylinder and (34) hydraulic tube with
the (18) trip rod through the center of the valve.
17. Feed (36) bolts through (26) motor base and apply (35)
washers and (37) nuts to the bolts. Tighten fasteners al-
ternately and apply 44 - 56 ft lbs (59.7 - 75.9 Nm). NOTE:
Must alternately rundown fasteners to prevent cutting
the (10) “O”rings.
Removal of (4) sleeve and spool assembly.
14. Remove (12) retaining ring and (11) sleeve washer from
(9) cylinder head. Push the (4b) sleeve carefully down
through the (9) cylinder head using a soft faced tool.
NOTE: The finish of the upper face of the sleeve is
critical for intended operation. Any nicks or scratches
may damage the entire (4) set.
18. Assemble (31) seal retainer, retaining with six (43) cap
screws.
19. Move piston to the retracted position.
Removal of (22) piston rod.
15. Place the (22, 21, 17, 16, 15, 14) piston rod assembly in
a vertical position with the (25) piston rod adapter in a
heavy vise.
NOTE: Never clamp on the (22) piston rod.
16. Grip the flats on the (14) piston screw and unthread.
17. Remove (21) “O”ring from (22) piston rod.
18. Remove the (18, 19, 20, 45) trip rod assembly.
19. Using the flats on the (18) rod, remove and discard the
two (3b) nuts. DO NOT RE-USE.
20. Pull (18) trip rod through the head and place the (4a)
spool on the trip rod. Using the (3a) nut and the trip rod
flats, tighten the (3a) nut to 90 - 110 in. lbs (10.2 - 12.4
Nm).
21. Carefully push the spool / trip rod into the sleeve, creat-
ing the (4) valve.
22. Place (2) “O” ring on (1) top plug and tighten in (9) cylin-
der head.
23. Place (7) “O” ring on (8) trip plug. Place (5) ball in (9) cyl-
inder head and (6) spring and (38) spring follower in (8)
trip plug.
24. Thread the (8) trip plug into the (9) cylinder head.
PN 97999-1220
67314-B (en)
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