SECTION 3 - CHASSIS & TURNTABLE
3120746
– JLG Lift –
3-53
If the Loctite is holding the screws too tightly, heat the
motor housing, with a propane torch, while turning screw.
Apply heat to where the screw threads into the motor
housing. Apply just enough heat to remove screw, do not
over heat the motor housing or mounting flange.
6. Remove the mounting flange from the motor hous-
ing. The exclusion seal, pressure seal, and back - up
ring will come off with the mounting flange.
7. Carefully remove the exclusion seal, pressure seal,
and back - up ring from the mounting flange. A seal
removal tool may be fabricated by bending and
rounding the end of a small blade screwdriver.
DO NOT DAMAGE THE MOUNTING FLANGE WHERE THE SHAFT
PASSES THROUGH IT.
Reassembly
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 pressur-
ized 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 seal during assembly.
NOTE:
Always use new seals when reassembling hydraulic
motors.
DURING REASSEMBLY LUBRICATE THE NEW SEALS WITH A
P E T R O L E U M J E L L Y L I K E V A S E L I N E . A L S O L U B R I C A T E
MACHINED SURFACES AND BEARINGS WITH CLEAN HYDRAU-
LIC FLUID.
1. Remove all of the old Loctite from the mounting
flange cap screws and their threaded holes. The
threads must be clean and dry for the new Loctite to
hold properly.
2. Lubricate and install the output shaft, needle thrust
bearing, and bearing race into the housing.
DO NOT PERMIT OIL TO GET INTO THE FOUR THREADED
HOLES.
3. Lubricate the exclusion seal and press it into its seat
in the mounting flange.
4. Lubricate and install the back - up ring and pressure.
Use a seal installation tool to press the pressure seal
into place.
Summary of Contents for 601S
Page 1: ...Service and Maintenance Manual Model 601S P N 3120746 November 22 2016 ...
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Page 16: ...x JLG Lift 3120746 TABLE OF CONTENTS Continued This page left blank intentionally ...
Page 26: ...SECTION 1 SPECIFICATIONS 1 10 JLG Lift 3120746 Figure 1 3 Torque Chart ...
Page 36: ...SECTION 2 GENERAL 2 10 JLG Lift 3120746 Figure 2 7 Connector Installation ...
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Page 49: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 9 Figure 3 1 Torque Hub Drive Fairfield ...
Page 51: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 11 Figure 3 2 Torque Hub Drive Auburn Gear ...
Page 53: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 13 Figure 3 3 Drive Brake Assembly Ausco ...
Page 91: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 51 Figure 3 40 Swing Brake Assembly Ausco ...
Page 99: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 59 ...
Page 119: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 79 Figure 3 46 EFI Component Location ...
Page 122: ...SECTION 3 CHASSIS TURNTABLE 3 82 JLG Lift 3120746 Figure 3 47 ECM EPM Identification ECM EPM ...
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Page 132: ...SECTION 4 BOOM PLATFORM 4 4 JLG Lift 3120746 Figure 4 5 Boom Assembly Cutaway Sheet 1 of 2 ...
Page 133: ...SECTION 4 BOOM PLATFORM 3120746 JLG Lift 4 5 Figure 4 6 Boom Assembly Cutaway Sheet 2 of 2 ...
Page 145: ...SECTION 4 BOOM PLATFORM 3120746 JLG Lift 4 17 Figure 4 22 Rotator Assembly Helac ...
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Page 174: ...SECTION 5 HYDRAULICS 5 26 JLG Lift 3120746 This page left blank intentionally ...
Page 176: ...SECTION 6 JLG CONTROL SYSTEM ADE 6 2 JLG Lift 3120746 Figure 6 1 EPBCS Block Diagram ...
Page 238: ...SECTION 7 SCHEMATICS 7 16 JLG Lift 3120746 Figure 7 15 Hydraulic Schematic Sheet 1 of 4 ...
Page 240: ...SECTION 7 SCHEMATICS 7 18 JLG Lift 3120746 Figure 7 17 Hydraulic Schematic Sheet 3 of 4 ...
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