Elliott Traffic Safety Service L60, Operator'S Manual

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Maintenance Schedules EEC-0129 V1.1
Maintenance Schedules
plate (  100 psi). If the pressure is not correct, re-set the boom control valve
pressure relief cartridge.
4. Test outrigger control valve relief pressure. With warm oil and with engine on
high speed, stow boom, retract outrigger, then continue to hold outrigger control
lever in retract position. Pressure gauge should read approximately 2500 psi
(  100 psi). If the pressure is not correct, re-set the outrigger control valve
pressure relief cartridge.
5. Check dirty filter indicators on both the pressure filter, located in the line between
the pump and the boom control valve, and the return-line filter, located at the
hydraulic reservoir. See Filters .
6. On equipped units, inspect external surface of insulating boom(s). Inspect the
inside boom for contamination, oil and dirt. Clean the fiberglass boom tube(s) of
any contamination and dry thoroughly.
7. On equipped units, test all limit switches for rotation stop system, boom
sequence control system, boom range control system, outrigger interlock system
and light outrigger alarm system from the ground controls to ensure they are
functioning properly.
Weekly Maintenance Schedule
1. Perform daily maintenance schedule.
2. Grease fittings according to recommended lubrication chart.
3. Clean sliding boom sections to remove dirt, sand or other foreign matter.
4. Coat steel boom sections with a very thin film of light oil. For units exposed to
sand blasting or similar dirty operations, lubricate boom with a dry molybdenum
spray.
5. Wash insulated boom. These booms must be kept clean and dry to maintain
their insulating characteristics.
6. Inspect winch line (on units so equipped) for possible defects.
A. Perform and document wire rope inspection. See attached Wire Rope
Care/Maintenance Section for inspection Rrquirements.