
INTRODUCTION
3120863
– JLG Lift –
A-1
SECTION A. INTRODUCTION - MAINTENANCE SAFETY
PRECAUTIONS
A
GENERAL
This section contains the general safety precautions which
must be observed during maintenance of the aerial plat-
form. It is of utmost importance that maintenance person-
nel pay strict attention to these warnings and precautions
to avoid possible injury to themselves or others, or dam-
age to the equipment. A maintenance program must be
followed to ensure that the machine is safe to operate.
MODIFICATION OF THE MACHINE WITHOUT CERTIFICATION BY
A RESPONSIBLE AUTHORITY THAT THE MACHINE IS AT LEAST
AS SAFE AS ORIGINALLY MANUFACTURED, IS A SAFETY VIOLA-
TION.
The specific precautions to be observed during mainte-
nance are inserted at the appropriate point in the manual.
These precautions are, for the most part, those that apply
when servicing hydraulic and larger machine component
parts.
Your safety, and that of others, is the first consideration
when engaging in the maintenance of equipment. Always
be conscious of weight. Never attempt to move heavy
parts without the aid of a mechanical device. Do not allow
heavy objects to rest in an unstable position. When raising
a portion of the equipment, ensure that adequate support is
provided.
SINCE THE MACHINE MANUFACTURER HAS NO DIRECT CON-
TROL OVER THE FIELD INSPECTION AND MAINTENANCE,
SAFETY IN THIS AREA RESPONSIBILITY OF THE OWNER/OPER-
ATOR.
B
HYDRAULIC SYSTEM SAFETY
It should be noted that the machines hydraulic systems
operate at extremely high potentially dangerous pressures.
Every effort should be made to relieve any system pres-
sure prior to disconnecting or removing any portion of the
system.
Relieve system pressure by cycling the applicable control
several times with the engine stopped and ignition on, to
direct any line pressure back into the reservoir. Pressure
feed lines to system components can then be disconnected
with minimal fluid loss.
C
MAINTENANCE
FAILURE TO COMPLY WITH SAFETY PRECAUTIONS LISTED IN
THIS SECTION MAY RESULT IN MACHINE DAMAGE, PERSONNEL
INJURY OR DEATH AND IS A SAFETY VIOLATION.
• NO SMOKING IS MANDATORY. NEVER REFUEL DUR-
ING ELECTRICAL STORMS. ENSURE THAT FUEL
CA P IS CLOSE D AND SE CURE AT ALL OTHE R
TIMES.
• REMOVE ALL RINGS, WATCHES AND JEWELRY
WHEN PERFORMING ANY MAINTENANCE.
• DO NOT WEAR LONG HAIR UNRESTRAINED, OR
LOOSE-FITTING CLOTHING AND NECKTIES WHICH
ARE APT TO BECOME CAUGHT ON OR ENTANGLED
IN EQUIPMENT.
• OBSERVE AND OBEY ALL WARNINGS AND CAU-
TIONS ON MACHINE AND IN SERVICEMANUAL.
• KEEP OIL, GREASE, WATER, ETC. WIPED FROM
STANDING SURFACES AND HAND HOLDS.
• USE CAUTION WHEN CHECKING A HOT, PRESSUR-
IZED COOLANT SYSTEM.
• NEVER WORK UNDER AN ELEVATED BOOM UNTIL
BOOM HAS BEEN SAFELY RESTRAINED FROM ANY
MOVEMENT BY BLOCKING OR OVERHEAD SLING,
OR BOOM SAFETY PROP HAS BEEN ENGAGED.
• BEFORE MAKING ADJUSTMENTS, LUBRICATING OR
PERFORMING ANY OTHER MAINTENANCE, SHUT
OFF ALL POWER CONTROLS.
• BATTERY SHOULD ALWAYS BE DISCONNECTED-
DURING REPLACEMENT OF ELECTRICAL COMPO-
NENTS.
• KEEP ALL SUPPORT EQUIPMENT AND ATTACH-
MENTS STOWED IN THEIR PROPER PLACE.
• USE ONLY APPROVED, NONFLAMMABLE CLEANING
SOLVENTS.
Содержание 80HX
Страница 2: ......
Страница 10: ...vi JLG Lift 3120863 TABLE OF CONTENTS Continued THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 16: ...SECTION 1 SPECIFICATIONS 1 6 JLG Lift 3120863 Figure 1 2 Lubrication Diagram...
Страница 27: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 5 Figure 2 1 Proportional Control Valve...
Страница 34: ...SECTION 2 PROCEDURES 2 12 JLG Lift 3120863 Figure 2 5 Typical Hydraulic Cylinders Sheet 1 of 4...
Страница 35: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 13 Figure 2 6 Typical Hydraulic Cylinders Sheet 2 of 4...
Страница 36: ...SECTION 2 PROCEDURES 2 14 JLG Lift 3120863 Figure 2 7 Typical Hydraulic Cylinders Sheet 3 of 4...
Страница 37: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 15 Figure 2 8 Typical Hydraulic Cylinders Sheet 4 of 4...
Страница 44: ...SECTION 2 PROCEDURES 2 22 JLG Lift 3120863 Figure 2 12 Boom Assembly Sheet 1 of 2...
Страница 45: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 23 Figure 2 13 Boom Assembly Sheet 2 of 2...
Страница 53: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 31 Figure 2 16 Adeco Actuator Adjustments F4L912...
Страница 59: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 37 Figure 2 22 Pressure Setting All Hydraulic Machines Sheet 1 of 4...
Страница 60: ...SECTION 2 PROCEDURES 2 38 JLG Lift 3120863 Figure 2 23 Pressure Setting All Hydraulic Machines Sheet 2 of 4...
Страница 61: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 39 Figure 2 24 Pressure Setting All Hydraulic Machines Sheet 3 of 4...
Страница 62: ...SECTION 2 PROCEDURES 2 40 JLG Lift 3120863 Figure 2 25 Pressure Setting All Hydraulic Machines Sheet 4 of 4...
Страница 64: ...SECTION 2 PROCEDURES 2 42 JLG Lift 3120863 Figure 2 27 Solenoid Valve Pressure Settings 4 Wheel Steer...
Страница 65: ...SECTION 2 PROCEDURES 3120863 JLG Lift 2 43 Figure 2 28 Extend A Reach Valve Pressure and Speed Settings...
Страница 68: ...SECTION 2 PROCEDURES 2 46 JLG Lift 3120863 Figure 2 32 Swing Bearing Torquing Sequence...
Страница 70: ...SECTION 2 PROCEDURES 2 48 JLG Lift 3120863 Figure 2 33 Torque Hub Assembly...
Страница 78: ...SECTION 2 PROCEDURES 2 56 JLG Lift 3120863 Figure 2 34 Drive Brake Ausco Machines Built Prior to 1992...
Страница 80: ...SECTION 2 PROCEDURES 2 58 JLG Lift 3120863 Figure 2 35 Drive Brake Mico Machines Built from 1992 to Present...
Страница 108: ...SECTION 3 TROUBLESHOOTING 3 20 JLG Lift 3120863 Figure 3 1 Wiring Schematic Sheet 1 of 4...
Страница 109: ...SECTION 3 TROUBLESHOOTING 3120863 JLG Lift 3 21 Figure 3 2 Wiring Schematic Sheet 2 of 4 1870003A...
Страница 110: ...SECTION 3 TROUBLESHOOTING 3 22 JLG Lift 3120863 Figure 3 3 Wiring Schematic Sheet 3 of 4...
Страница 111: ...SECTION 3 TROUBLESHOOTING 3120863 JLG Lift 3 23 Figure 3 4 Wiring Schematic Sheet 4 of 4 1870003A...
Страница 112: ...SECTION 3 TROUBLESHOOTING 3 24 JLG Lift 3120863 Figure 3 5 Hydraulic Schematic Sheet 1 of 6...
Страница 113: ...SECTION 3 TROUBLESHOOTING 3120863 JLG Lift 3 25 Figure 3 6 Hydraulic Schematic Sheet 2 of 6 2792231...
Страница 114: ...SECTION 3 TROUBLESHOOTING 3 26 JLG Lift 3120863 Figure 3 7 Hydraulic Schematic Sheet 3 of 6...
Страница 115: ...SECTION 3 TROUBLESHOOTING 3120863 JLG Lift 3 27 Figure 3 8 Hydraulic Schematic Sheet 4 of 6 2792231...
Страница 116: ...SECTION 3 TROUBLESHOOTING 3 28 JLG Lift 3120863 Figure 3 9 Hydraulic Schematic Sheet 5 of 6...
Страница 117: ...SECTION 3 TROUBLESHOOTING 3120863 JLG Lift 3 29 Figure 3 10 Hydraulic Schematic Sheet 6 of 6 2792231...
Страница 118: ...SECTION 3 TROUBLESHOOTING 3 30 JLG Lift 3120863 This page left blank intentionally...
Страница 119: ......