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3

Disc Valve Hydraulic Motor

10 000 Series
Geroler Motors—Two Speed

Figure 1

Tools Required:

-  Torque Wrench, 165 Nm [120 lb-ft] * capacity

-  15/16, 1, and 1–1/4 inch sockets

-  5/32, 3/16, 5/16, and 5/8 inch hex keys

-  300 mm to 450 mm [12 to 16 inch] breaker bar

-  Small blade screwdriver, 150 to 200 mm [6 to 8 inch] long

-  Plastic or rubber hammer

Special Tools:

-  Small internal bearing puller, sliding hammer type

-  Output shaft sleeve

* Inch equivalents given in [brackets].

Disassembly

Cleanliness is extremely important when repairing hydraulic motors.
Work in a clean area.  Before disconnecting the oil lines thoroughly
clean the port area of the motor.  After the oil lines have been
disconnected, plug the motor’s ports to prevent dirt from entering.
Clean the exterior of the motor with a wire brush.  Check the keyway
and chamfered area of the output shaft and remove any nicks, burrs,
or sharp edges that could damage the shaft seals during reassembly.
Drain the oil from the motor before beginning disassembly.

Note:  On the standard and wheel motors the output shaft seal and dust
seal can be changed without completely disassembling the motor.
Steps 23 through 41 describe shaft and dust seal replacement. If
complete disassembly is planned, both the shaft seal kit and motor seal
kit will be needed. Refer to parts list 6-131 for seal kit part numbers.

  1  Place the motor in a vise with the output shaft down.  Clamp on the
motor’s mounting flange as shown in Figure 1.  Protect the mounting
flange with soft vise jaws, wood, or hard rubber.  Use just enough
clamping force to hold the motor securely during repairs. Excessive
force will distort the motor housing.

Note:  Even though the motor is not shown in a vise in all the
drawings, it is recommended that the motor be kept clamped in a
vise during repairs.

  2  Remove the four hex head bolts from the motor.

Summary of Contents for Char-Lynn 10000 Series

Page 1: ...October 1997 Char Lynn Hydraulic Motor 10 000 Series Geroler 1 0 0 d e e p S o w T r o t o M Repair Information...

Page 2: ...ar Flange Mounting Wear Plate 18 Plug O ring S A 32 32a O ring Ref No 32 Screw Cap 16 Plate Valve 17 Geroler Plug O ring S A Retainer Front Drive Plug O ring S A Ball Spring 20 Valve 13 14 15 30 Balan...

Page 3: ...of the output shaft and remove any nicks burrs or sharp edges that could damage the shaft seals during reassembly Drain the oil from the motor before beginning disassembly Note On the standard and whe...

Page 4: ...ce Remove the case drain plug and o ring from the bottom of the valve housing see Figure 3 6 Remove the balance ring and four balance ring springs The balance ring fits into the valve housing tightly...

Page 5: ...3 Remove the valve drive 14 Remove the Geroler Be sure to keep the Geroler star and rollers within the outer ring if they are loose 15 Remove the 108 mm 4 25 in seal and 9 5 mm 375 in o ring from each...

Page 6: ...emove the eight cap screws that hold the retainer to the bearing housing 25 Carefully pry the retainer loose with a small blade screwdriver Do not damage the mating surfaces of the retainer or bearing...

Page 7: ...a vise with the mounting flange up see Figure 11 Remember use just enough clamping force to hold the bearing housing securely while the output shaft and retainer are reinstalled 33 Install the bearin...

Page 8: ...to guide the drive spacer into the output shaft Note Do not use spacer with current motors or replacement shafts Motors with this shaft spacer will still have to be reassembled with this spacer unless...

Page 9: ...cate the open slot in the valve plate that is in line with the largest open pocket in the Geroler Timing Step 3 Align any one of the side openings in the valve with the open slot in the valve plate th...

Page 10: ...ance ring springs into their holes in the valve housing 63 To aid the installation of the balance ring lubricate its o rings and back up rings with petroleum jelly Align the balance ring index pins wi...

Page 11: ...re installed This will insure that they seat properly see Figure 27 68 Install the two check ball plugs with new o rings and tighten them to 6 8 12 Nm 5 10 lb ft Wheel Motor A different bearing housin...

Page 12: ...entification Number Engineering Change Code Week of Year 01 Thru 52 Last Number of Year Date Code 00 0 Displ cm3 r in3 r Product Number Shaft Mounting 480 29 3 665 40 6 940 57 4 345 21 0 Ports 2 1 4 I...

Page 13: ...rie MN 55344 USA Tel 952 937 9800 Fax 952 294 7722 www eaton com hydraulics Eaton Fluid Power Group Hydraulics Business Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600 Fax...

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