Parts Manual Owner manual
Table Of Contents
- SECTION 1 FRAME
- FIGURE 1-1. AXLE AND STEERING INSTALLATION - 2WD WITHOUT TOW BAR
- FIGURE 1-2. AXLE AND STEERING INSTALLATION - 2WD WITH TOW BAR (S/N 49971 TO PRESENT)
- FIGURE 1-3. AXLE AND STEERING INSTALLATION - 4WD.
- FIGURE 1-4. TIRE AND WHEEL DRIVE INSTALLATIONS
- FIGURE 1-5. DRIVE BRAKE ASSEMBLY.
- FIGURE 1-6. DRIVE HUB ASSEMBLY (PRIOR TO S/N 39594).
- FIGURE 1-7. DRIVE HUB ASSEMBLY (S/N 39594 TO PRESENT)
- FIGURE 1-8. DRIVE MOTOR ASSEMBLY - REAR
- FIGURE 1-9. DRIVE MOTOR ASSEMBLY - FRONT
- FIGURE 1-10. DRIVE VALVES INSTALLATIONS
- FIGURE 1-11. TOW BAR INSTALLATION - 2WD
- FIGURE 1-12. SEMI-TRACK INSTALLATION
- SECTION 2 TURNTABLE
- FIGURE 2-1. CONTROL VALVES INSTALLATIONS
- FIGURE 2-2. MAIN CONTROL VALVE ASSEMBLY - PROPORTIONAL
- FIGURE 2-3. TURNTABLE AND SWING DRIVE INSTALLATIONS
- FIGURE 2-4. SWING MOTOR ASSEMBLY
- FIGURE 2-5. SWING BEARING ASSEMBLY
- FIGURE 2-6. DEUTZ ENGINE INSTALLATION
- FIGURE 2-7. GENERATOR INSTALLATION - DEUTZ MACHINES (OPTIONAL)
- FIGURE 2-8. PISTON PUMP ASSEMBLY
- FIGURE 2-9. TANK INSTALLATIONS
- FIGURE 2-10. GROUND CONTROL BOX ASSEMBLY
- FIGURE 2-11. ELECTRICAL OPTIONS INSTALLATION (TURNTABLE MOUNTED)
- FIGURE 2-12. HOODS INSTALLATION
- SECTION 3 BOOM
- SECTION 4 PLATFORM
- FIGURE 4-1. PLATFORM INSTALLATION
- FIGURE 4-2. PLATFORM CONSOLE ASSEMBLY
- FIGURE 4-3. CONTROLLER ASSEMBLY (LIFT & SWING) (PRIOR TO S/N39857)
- FIGURE 4-4. CONTROLLER ASSEMBLY (LIFT & SWING) (S/N39857 TO PRESENT)
- FIGURE 4-5. CONTROLLER ASSEMBLY (DRIVE & STEER) (PRIOR TO S/N39857)
- FIGURE 4-6. CONTROLLER ASSEMBLY (DRIVE & STEER) (S/N39857 TO PRESENT)
- FIGURE 4-7. CONTROLLER ASSEMBLY (SPEED)
- FIGURE 4-8. SOFT TOUCH SYSTEM INSTALLATION (S/N 49601 TO PRESENT)
- SECTION 5 CYLINDER
- FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY
- FIGURE 5-2. PLATFORM LEVEL CYLINDER ASSEMBLY
- FIGURE 5-3. LIFT CYLINDER ASSEMBLY - JIB (450AJ ONLY)
- FIGURE 5-4. LIFT CYLINDER ASSEMBLY - MAIN
- FIGURE 5-5. LIFT CYLINDER ASSEMBLY - MID
- FIGURE 5-6. LIFT CYLINDER ASSEMBLY - TOWER
- FIGURE 5-7. ROTATOR CYLINDER ASSEMBLY - PLATFORM
- FIGURE 5-8. STEER CYLINDER ASSEMBLY
- FIGURE 5-9. TELESCOPE CYLINDER ASSEMBLY
- SECTION 6 HYDRAULIC
- SECTION 7 ELECTRICAL
- SECTION 8 DECALS
- SECTION 9 RECOMMENDED SERVICE PARTS STOCK
- SECTION 10 SPECIAL OPTIONS
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SECTION 9 RECOMMENDED SERVICE PARTS STOCK
MODELS 450A/450AJ WITH PROPORTIONAL CONTROLS
The following list will service fleets of machines (built to current production per date on the front cover) with
emergency repair parts which can be installed in the field. Parts from the list should be replaced when inven-
tory is depleted to keep service parts stock supplied. For further infomation, contact your JLG dealer or the
JLG Industries Parts Department.
JLG PART
NUMBER
DESCRIPTION
QTY PER FLEET
1-10 10-20 20 OR MORE
STANDARD PARTS
7012944 Coil (Figures 1-10, 2-1 & 2-2) 1 1 1
7012943 Coil (Figures 1-10 & 2-2) 1 1 1
2120150 Element, Filter (Figure 2-1) 4 8 12
2120158 Element Filter (Figure 2-1) 4 8 12
7017451 Coil (Figure 2-2) 1 1 1
7012664 Element, Air Cleaner (Figure 2-6) 1 Dozen 1 Dozen 1 Dozen
3740067 Relay (Figure 2-6) 1 1 1
7016331 Filter, Oil (Figure 2-6) 1 Dozen 1 Dozen 1 Dozen
7020023 Filter, Fuel (Figure 2-6) 1 Dozen 1 Dozen 1 Dozen
4360501 Breaker, Circuit (Figure 2-6) 1 1 1
7007496 Coil (Figure 2-8) 1 1 1
7014811 Breather, Hydraulic Tank (Figure 2-9) 1 2 3
4360475 Switch, Mushroom (Figures 2-10 & 4-2) 1 1 1
4360470 Switch, Key (Figure 2-10) 1 1 1
2860030 Key, Replacement (Figure 2-10) 1 1 1
3740112 Relay (Figure 2-10) 1 1 1
4360314 Switch, Toggle (Figures 2-10 & 4-2) 1 1 1
4360476 Contact, Switch Block (Figures 2-10 & 4-2) 1 1 1
3740049 Relay (Figures 2-10 & 4-2) 1 1 1
3740057 Relay (Figures 2-10 & 4-2) 1 1 1
3740113 Relay, Time Delay (Figure 4-2) 1 1 1
3740115 Relay, Time Delay (Figure 4-2) 1 1 1
4360387 Switch, Push Button (Figure 4-2) 1 1 1
4360232 Breaker, Circuit (Figure 4-2) 1 1 1
7003961 Microswitch (Figures 4-4 & 4-6) 1 1 1
7019178 Potentiometer (Figure 4-4) 1 1 1
7019190 PC Board Assembly (Lift) (Figure 4-4) 1 1 1
7019189 PC Board Assembly (Swing) (Figure 4-4) 1 1 1
7019124 Board, Circuit with Potentiometer (Figure 4-6) 1 1 1
7019182 Switch, Rotary (Figure 4-7) 1 1 1
7019187 Board, Circuit with Potentiometer (Figure 4-7) 1 1 1
3990010 Diode (Figure 7-3) 2 2 2
4360464 Switch, Proximity (Figure 7-3) 1 1 1