JLG 450AJ Operator Manual - Manual (Page 23)

SECTION 2 - PREPARATION AND INSPECTION
3120868 – JLG Lift – 2-7
GENERAL
Begin the "Walk-Around Inspection" at Item 1, as noted on
the diagram. Continue to the right (counterclockwise
viewed from top) checking each item in sequence for the
conditions listed in the Walk-Around Inspection Checklist.
TO AVOID INJURY, DO NOT OPERATE A MACHINE UNTIL ALL
MALFUNCTIONS HAVE BEEN CORRECTED. USE OF A MALFUNC-
TIONING MACHINE IS A SAFETY VIOLATION. TO AVOID POSSI-
BLE INJURY, BE SURE MACHINE POWER IS OFF DURING WALK-
AROUND INSPECTION.
NOTE: Do not overlook visual inspection of chassis under-
side. Checking this area often results in discovery of
conditions which could cause extensive machine
damage.
1. Platform Assembly - No loose or missing parts, no
visible damage. Lockbolts in place. Footswitch in
good working order, not modified, disabled or
blocked.
2. Platform Control Console - Switches and levers
return to neutral and are properly secured, no loose
or missing parts, no visible damage, decals/placards
secure and legible, control marking legible.
3. Slave Cylinder - No visible damage; pivot pins
secure hydraulic hoses undamaged, not leaking.
4. Boom Sections/Uprights/Lift Cylinders and Master
Cylinder - No visible damage; pivot pins secure;
hydraulic hoses undamaged, not leaking. Uprights
in vertical position.
5. Horizontal Limit Switches - Switches operable; no
visible damage.
6. Drive Motor, Brake, and Hub - No visible damage; no
evidence of leakage.
7. Wheel/Tire Assembly, Right Rear - Properly secured,
no loose or missing lug nuts, no visible damage.
8. Hydraulic Filter - Housing secure no visible damage;
no evidence of leakage.
9. Hood, Right Side - Properly secured; no loose or
missing parts.
10. Control Valve - No loose or missing parts; evidence
of leakage; unsupported wires or hoses; damaged
or broken wires.
11. Fuel Supply - Filler cap secure, no visible damage to
the tank or evidence of leaks.
12. Ground Controls - Switches operable, no visible
damage, decals secure and legible.
13. Hydraulic Oil Supply - Recommended oil level sight
gauge. (Check level with cold oil, systems shut
down, machine in stowed position) Cap in place and
secure.
14. Wheel/Tire Assembly, Right Front - Properly secured,
no loose or missing lug nuts, no visible damage.
15. Oscillating Axle - No loose or missing hardware; no
visible damage.
16. Steer Cylinder - Properly secured; no visible damage
or signs of leakage; evidence of proper lubrication.
17. Tie Rod Ends and Steering Spindles - No loose or
missing parts; no visible damage.
18. Wheel/Tire Assembly, Left Front - Properly secured,
no loose or missing lug nuts, no visible damage.
19. Battery - Proper electrolyte levels; cables tight, no
visible damage or corrosion.
20. Engine Air Filter - No loose or missing parts; no visi-
ble damage; element clean.
21. Hood, Right Side - Properly secured; no loose or
missing parts.
22. Engine Oil Supply - Full mark on dipstick; filler cap
secure.
Figure 2-3. Daily Walk-Around Inspection - Sheet 2 of 3