Maintenance; Safety Precautions; Routine Maintenance; Engine Adjustments - Red-D-Arc ZR-8 Operator's Manual

MAINTENANCE

Safety Precautions

WARNING
•
Have qualified personnel do maintenance and
troubleshooting work.
Turn the engine off before working inside the
•
machine.
Remove guards only when necessary to
•
perform maintenance, and replace them when
the maintenance requiring their removal is
complete.
If guards are missing from a machine, obtain
•
replacements from a Lincoln Distributor. (See
Operating Manual Parts List.)
Read the Safety Precautions in the front of this manu-
al and the engine instruction manual before working
on this machine.
Keep all equipment safety guards, covers, and
devices in position and in good repair. keep hands,
hair, clothing, and tools away from gears, fans, and all
other moving parts when starting, operating, or repair-
ing the equipment.

Routine Maintenance

1. At the end of each day's use, refill the fuel tank to
minimize moisture condensation in the tank.
Running out of fuel tends to draw dirt into the fuel
system. Also, check the crankcase oil level and
add oil if indicated.
CAUTION
Make certain that the oil filler cap is securely tight-
ened after checking or adding oil. If the cap is not
tight, oil consumption can increase significantly
which may be evidenced by white smoke coming
from the exhaust.
2. OIL - Maintenance schedule for changing the oil
and oil filter after break-in:
Oil
Oil Filter
The above schedule is for normal operating condi-
tions. More frequent oil changes are required with
dusty, high temperature and other severe operating
conditions. Refer to the maintenance section of the
Engine Owner's Manual for more information.
NOTE: Engine life will be reduced if the oil and oil
filter are not changed according to the manufacturer's
recommendation.
3. Air Cleaner - With normal operating conditions,
the maintenance schedule for cleaning and re-oil-
ing the foam pre-filter is every 25 hours and
replacement of the air cleaner filter every 100
hours. More frequent servicing is required with
dusty operating conditions. Refer to the mainte-
nance section of the Engine Owner's Manual for
more information.
4. Refer to the maintenance section of the Engine
Owner's Manual for the maintenance schedule,
spark plug servicing, cooling system servicing,
and fuel filter replacement.
5. Blow out the machine with low pressure air
periodically. In particularly dirty locations, this
may be required once a week.
6. Output Ranger Selector and Polarity Switches:
Switch contacts should not be greased. To keep
contacts clean, rotate the switch through its entire
range frequently. Good practice is to turn the han-
dle from maximum to minimum setting twice each
morning before starting to weld.

Engine Adjustments

OVERSPEED IS HAZARDOUS
The maximum allowable high idle speed for this
machine is 3750 RPM, no load. Do NOT tamper
with governor components or setting or make any
other adjustments to increase the maximum
speed. Severe personal injury and damage to the
machine can result if operated at speeds above
maximum.
Adjustments to the engine are to be made only by a
Lincoln Service Center or an authorized Field Service
Shop.
– 24 –
Kohler CH20S
100 hr
200 hr
WARNING