Atlas Copco QAC 1100 Sd, Instruction Manual

Page: 37 / 64

- 37 -
Maintenance
Maintenance chart
Before performing any maintenance operation, check if the start switch is in the O position and if there is not any current in the
terminals.
It is recommended to weekly check and drain the points indicated in the chassis, since the engine breathing and other fluid may be
precipitated in the watertight area.
Attention!
When using non original filters and parts, the engine and alternator service life can be impaired, and this may cause in the engine
a fault in the fuel injectors, wear in rings and jackets, piston blocking and/or more severe faults that may cause engine block, leaving
the machine out of operation.
500h 1000h 2000h
Quartely Annually Bi-annually
ALTERNATOR
Check and remove dust, oil and dirt that may have accumulated inside the Generator. (2) X X X
Check voltage level at the three phases, including the neutral, if necessary adjust at the panel
potentiometer.
X X X
Check the transient response of U/Hz and adjust in the regulating board if necessary.For this purpose use
the regulating board manual.This activity shall be made by a duly trained technician. (2)
X X
Check the proper positioning of the regulating board and its electric contacts. X X X
Check the supply cables.They shall not touch sharp edges.If necessary, correct cable path. X X
Check the tightness of electrical connection, mainly at the supply, neutral and grounding cables X X X
ENGINE
Check oil level (engine sump) – (2) X X X X
Replace lube oil and filter (2) X X X
Drain the water in the primary filter and fuel tank X X X X
Replace the primary and secondary fuel filter (1) (2) (4) X X X
Adjust clearance of intake and exhaust valves (2) X X
Inspect belt and adjust if required (2) X X X X
Replace the belt (2) X
Daily
INTERVALS
Activies