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SECTION 3 - CHASSIS & TURNTABLE
3-20
3121160
Bleeding
1.
Install brake in system and connect pressure lines.
2.
Bleed pressure release section of brake by pressurizing
side inlet port and allowing air to escape from top port.
Pressure should not exceed 6.9 bar (100 psi) during
bleeding.
3.
Apply sufficient pressure to release brake and check for
proper operation in system.
Table 3-2. Troubleshooting
PROBLEM
CAUSE
EXPLANATION
ACTION
Brake slips
Excessive pressure in hydraulic system
If there is back pressure in the actuation line of the
brake, holding torque will be reduced.
Check filters, hose size, restrictions in other
hydraulic components.
Oil in brake if designed for dry use
Wet linings generate 67% of the dry torque rating.
If the brake has oil in it, check the type of oil hydrau-
lic or gearbox.
1. Gearbox oil
2. Hydraulic oil
Replace oil seal in brake.
Check motor seal
Check piston seals
NOTE:
Internal components will
need to be inspected,
cleaned and replaced as
required.
Disc plates worn
The thickness of the disc stack sets the torque level.
A thin stack reduces torque.
Check disc thickness.
Springs broken or have taken a permanent set
Broken or set springs can cause reduced torque - a
rare occurrence.
Check release pressure. (See spring replace-
ment).
Brake drags or runs hot
Low actuation pressure
The brake should be pressurized to minimum of
1.38 bar (20 psi) over the full release pressure under
normal operating conditions. Lower pressures will
cause the brake to drag thus generating heat.
Place pressure gauge in bleed port & check pres-
sure with system on.
Bearing failure
If the bearing should fail, a large amount of drag
can be generated.
Replace bearing.
Brake will not release
Stuck or clogged valve
Brakes are designed to come on when system pres-
sure drops below stated release pressure. If pres-
sure cannot get to brake, the brake will not release.
Place pressure gauge in bleed port - check for
adequate pressure. Replace inoperative line or
component.
Bad o-rings
If release piston will not hold pressure, brake will
not release.
Replace o-rings.
Discs frozen
These brakes are designed for only limited dynamic
braking. A severe emergency stop or prolonged
reduced release pressure operation may result in
this type of damage.
Replace disc stack.
Содержание 740AJ
Страница 1: ...Service and Maintenance Manual Model 740AJ Prior to S N 0300185827 P N 3121160 October 24 2017 AS NZS...
Страница 2: ......
Страница 51: ...SECTION 2 GENERAL 3121160 2 11 Figure 2 2 Engine Operating Temperature Specifications Ford 4150548 E...
Страница 55: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 3 This page left blank intentionally...
Страница 56: ...SECTION 3 CHASSIS TURNTABLE 3 4 3121160 1 Figure 3 2 Axle and Steering Installation Sheet 1 of 2 0258286 C...
Страница 100: ...SECTION 3 CHASSIS TURNTABLE 3 48 3121160 Figure 3 37 Swing Bearing Tolerance Boom Placement Sheet 1 of 2...
Страница 101: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 49 Figure 3 38 Swing Bearing Tolerance Boom Placement Sheet 2 of 2...
Страница 116: ...SECTION 3 CHASSIS TURNTABLE 3 64 3121160 Figure 3 44 Swing Hub Prior to SN 0300074383...
Страница 124: ...SECTION 3 CHASSIS TURNTABLE 3 72 3121160 Figure 3 45 Swing Drive Hub Fairfield SN 0300074383 through 0300134352...
Страница 180: ...SECTION 3 CHASSIS TURNTABLE 3 128 3121160 1 Figure 3 66 Auxiliary Pump Location 1 AuxiliaryPump 2 HydraulicTank...
Страница 203: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 151 Figure 3 77 EFI Component Location...
Страница 206: ...SECTION 3 CHASSIS TURNTABLE 3 154 3121160 Figure 3 78 ECM EPM Identification ECM EPM...
Страница 213: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 161 Megajector Regulator LockoffSolenoid Figure 3 80 LPG System Components Mixer...
Страница 219: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 167 Figure 3 81 Check Out and Initial Start Up Procedures...
Страница 224: ...SECTION 3 CHASSIS TURNTABLE 3 172 3121160 Figure 3 83 Deutz EMR 2 Troubleshooting Flow Chart...
Страница 225: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 173 Figure 3 84 Deutz EMR 2 Vehicle Side Connection Diagram...
Страница 226: ...SECTION 3 CHASSIS TURNTABLE 3 174 3121160 Figure 3 85 Deutz EMR 2 Engine Side Connection Diagram Sheet 1 of 2...
Страница 227: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 175 Figure 3 86 Deutz EMR 2 Engine Side Connection Diagram Sheet 2 of 2...
Страница 228: ...SECTION 3 CHASSIS TURNTABLE 3 176 3121160 Figure 3 87 EMR 2 Engine Plug Pin Identification...
Страница 229: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 177 Figure 3 88 EMR 2 Vehicle Plug Pin Identification...
Страница 230: ...SECTION 3 CHASSIS TURNTABLE 3 178 3121160 Figure 3 89 EMR2 Fault Codes Sheet 1 of 5...
Страница 231: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 179 Figure 3 90 EMR2 Fault Codes Sheet 2 of 5...
Страница 232: ...SECTION 3 CHASSIS TURNTABLE 3 180 3121160 Figure 3 91 EMR2 Fault Codes Sheet 3 of 5...
Страница 233: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 181 Figure 3 92 EMR2 Fault Codes Sheet 4 of 5...
Страница 234: ...SECTION 3 CHASSIS TURNTABLE 3 182 3121160 Figure 3 93 EMR2 Fault Codes Sheet 5 of 5...
Страница 303: ...SECTION 4 BOOM PLATFORM 3121160 4 31 Figure 4 20 Rotator Assembly HELAC...
Страница 335: ...SECTION 4 BOOM PLATFORM 3121160 4 63 THIS SENSOR ON NON ADE MACHINES ONLY Figure 4 27 UMS Sensor Location...
Страница 336: ...SECTION 4 BOOM PLATFORM 4 64 3121160 Figure 4 28 UMS Module Location ADE MACHINES NON ADE MACHINES...
Страница 425: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 3121160 5 81 Figure 5 131 Variable Displacement Pump Rexroth...
Страница 443: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 3121160 5 99 Figure 5 146 Fault Logic Troubleshooting...
Страница 444: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 5 100 3121160 Figure 5 147 Fault Logic Troubleshooting...
Страница 445: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 3121160 5 101 Figure 5 148 Fault Logic Troubleshooting...
Страница 460: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 5 116 3121160 NOTES...
Страница 467: ...SECTION 6 JLG CONTROL SYSTEM 3121160 6 7 Figure 6 2 ADE Block Diagram...
Страница 471: ...SECTION 6 JLG CONTROL SYSTEM 3121160 6 11 Figure 6 6 Analyzer Flow Chart Prior to Version 5 X Software Sheet 4 of 4...
Страница 473: ...SECTION 6 JLG CONTROL SYSTEM 3121160 6 13 Figure 6 8 Analyzer Flow Chart Version 5 X Software Sheet 2 of 4...
Страница 534: ...SECTION 6 JLG CONTROL SYSTEM 6 74 3121160 NOTES...
Страница 545: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 3121160 7 11 Figure 7 15 Connector Installation...
Страница 580: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 46 3121160 NOTES...
Страница 581: ......