Char-Lynn Repair Information J Series Geroler

Char-Lynn Repair Information J Series Geroler
Char-Lynn
®
No. 7-144
March, 1996
General Purpose Hydraulic Motors
Repair Information
J Series
Geroler® Motor
001 002
General Purpose Motors
J Series Geroler Motors
Drive
Shaft
Spacer
Bearing
Housing
Pressure
Seal
Thrust
Washer
Thrust
Bearing
Spool
Drive
Output
Shaft
Exclusion
Seal
Cap
Screw (5)
Valve
Housing
Spool
O-ring
Seal
Geroler
O-ring
Seal
Spacer
Plate
O-ring
Seal
Required Tools
• 1/8 in. hex key
• 3/16 in. hex key
• 5 mm hex key (for motors with metric ports)
• Torque wrench - 17 Nm [150 lb-in.] capacity
2
Plug/O-ring
General Purpose Motors
J Series Geroler Motors
1 Cleanliness is extremely important when repairing hydraulic
motors. Work in a clean area. Before disconnecting the
hydraulic lines, clean the port area of the motor. Before
disassembly, drain the oil from the motor. Then plug the ports
and thoroughly clean the exterior of the motor. Check the
output shaft, remove any burrs, nicks, or sharp edges.
2 Make a scribe mark across the motor sections. This will help
get the correct alignment when the motor is reassembled.
3 Remove the five cap screws and disassemble the motor as
shown in the parts drawing.
Note: Do not remove the retaining rings and check balls from
the spool.
4 Carefully remove the exclusion seal and pressure seal from
the bearing housing. A seal removal tool may be fabricated by
bending and rounding the end of a small blade screwdriver, see
figure 1.
Important: During reassembly lubricate the new seals with a
petroleum jelly like Vaseline. Also lubricate machined surfaces
and bearings with clean hydraulic fluid.
6 Put the thrust bearing and thrust washer on the output shaft.
7 Apply a light coating of hydraulic fluid to the outside diameter
of the pressure seal and carefully slide it onto the shaft so that it
is next to the thrust washer. See figure 1 for the correct seal
orientation.
Note: The pressure seal is slightly thicker than the exclusion
seal.
8 Slide the shaft into the bearing housing and press the
pressure seal into its seat.
9 Remove the shaft, and thrust bearing and washer.
10 Using a 1 inch diameter dowel, press the pressure seal all
the way into its seat. Be careful, do not damage the seal.
Important: Do not damage the bearing housing.
11 Install the exclusion seal. Be sure to press it all the way into
the seat. See figure 1 for the correct seal orientation.
Pressure
Seal
12 Apply a coating of Mobilith SCH 220, or equivalent to inner
edges of the shaft seals.
Bearing
Housing
Seal
Removal
Tool
Exclusion
Seal
Figure 1
5 Check all mating surfaces. Replace any parts with scratches
or burrs that could cause leakage. Wash all metal parts in clean
solvent. Blow them dry with pressurized air. Do not wipe parts
dry with paper towels or cloth. Lint in a hydraulic system will
cause damage. Check the key way and chamfered area of the
output shaft; remove any nicks, burrs, or sharp edges that
could damage the shaft seals during reassembly.
13 Install the thrust bearing and washer onto the output shaft.
Dip the bearing end of the output shaft, thrust bearing and
washer in clean hydraulic fluid. Then carefully slide the output
shaft into the bearing housing.
Important: Do not damage the shaft seals, use of a protective
bullet is recommended.
14 Install the shaft spacer, spool drive, and drive. The end of
the drive with the small opening goes into the output shaft.
15 Lightly lubricate and install an o-ring seal in the groove in
the bearing housing.
16 Install the spacer plate and align the screw holes.
17 Lightly lubricate and install an o-ring seal in the groove in
the Geroler.
Note: Always use new seals when reassembling hydraulic
motors. Refer to Parts List 6-147 for seal kit part numbers,
replacement parts, and ordering information.
3
General Purpose Motors
J Series Geroler Motors
18 Install the Geroler and time the motor.
– Align the corners of the spool drive end with the star points
for standard timing, see figure 2.
– Align the corners of the spool drive end with the star valleys
for reverse timing, see figure 2.
Standard Timing
19 Align the screw holes in the geroler with the screw holes in
the bearing housing and spacer plate.
Star
Point
Spool
Drive
20 Lubricate the spool and slide it into the valve housing.
Note: The spool is match fit to the valve housing, replace them
as a subassembly.
Reverse Timing
Star
Valley
21 Lubricate and install an o-ring seal in the groove in the valve
housing.
22 Carefully install the valve housing and spool. Engage the
spool with the spool drive, then rotate the valve housing until
the scribe marks on the bearing and valve housings align.
Spool
Figure
2
Drive
23 Install the five cap screws and pretorque them in a crisscross pattern to 9-10 Nm [80-90 lb-in.]. Final torque in a
crisscross pattern to 14-15 Nm [120-130 lb-in].
22 If no case drain is used, Install the plug in the valve housing. Use a new o-ring and tighten it to 7 Nm [60 lb-in.].
23 If a 2 bolt mounting flange is used, install the flange and
tighten the screws, in a criss-cross pattern, to 8 - 10 Nm
[71 - 89 lb-in.].
How to Order Parts
Each order must include the
following information:
1
2
3
4
5
Product Number
Date Code
Part Name
Part Number
Quantity
Date Code
Char-Lynn
®
00 0
Product number
Eaton Limited, Hydraulics Division
Glenrothes, Scotland KY7-4NW
Product Number
Week of
Year 01
Thru 52
Last
Number
of Year
129 0000 000
Product Line
Identification
Number
Product
Identification
Number
Engineering
Change
Code
ACCREDITED BY
THE DUTCH COUNCIL
FOR CERTIFICATION
Reg. No. 24
Eaton Corporation
Hydraulics Division
15151 Hwy. 5
Eden Prairie, MN 55344
Telephone 612/937-9800
Fax 612/937-7130
Eaton Ltd.
Hydraulics Division
Glenrothes, Fife
Scotland, KY7 4NW
Telephone 01-592-771-771
Fax 01-592-773-184
http://www.eaton.com
Form No. 7-144
Copyright Eaton Corporation, 1991, 1994 and 1996
All Rights Reserved
Printed in USA
Eaton GmbH
Hydraulics Products
Am Schimmersfeld 7
40880 Ratingen, Germany
Telephone 02102-406-830
Fax 02102-406-800
ISO-9001 CERTIFICATED FIRM
DET NORSKE VERITAS INDUSTRY BV, THE NETHERLANDS
Quality System Certified
Products in this catalog are manufactured
in an ISO-9001-certified site.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising