Lincoln Electric IM869-D - Manual (Page 20)

D-1 MAINTENANCE D-1
ELECTRIC SHOCK can kill.
● Do not touch electrically live parts
such as output terminals or inter-
nal wiring
ENGINE EXHAUST can kill.
● Use in open, well ventilated areas
or vent exhaust outside
MOVING PARTS can injure.
● Do not operate with doors open or
guards off
● Stop engine before servicing
● Keep away from moving parts
● Remove guards only when necessary and
replace when work requiring removal is com-
plete.
● Only qualified personnel should install, use, or
service this equipment.
ROUTINE MAINTENANCE
At the end of each dayʼs welding, refill the fuel tank to
minimize moisture condensation in the tank. Also, run-
ning out of fuel tends to draw dirt into the fuel system.
Check the engine crankcase oil levels.
If the fuel supply runs out while the fuel pump is oper-
ating, air may be entrapped in the fuel distribution sys-
tem. If this happens, bleeding of the fuel system may
be necessary. See the engine instruction manual.
ENGINE AIR FILTER
The engine air filter element is a dry cartridge type. It
is located above the engine. It can be cleaned and re-
used; however, damaged elements should not be
washed or re-used. Remove loose dirt from element
with compressed air or water hose directed from inside
out. Compressed Air: 100 psi maximum. The filter
should never be removed while the engine is running.
PERIODIC MAINTENANCE
1. Blow out the welder and controls with an air hose at least
once every two months. In particularly dirty locations, this
cleaning may be necessary once a week. Use low pres-
sure air to avoid driving dirt into the insulation.
2. The current control reactor brushes are self-lubricating
and should not be greased. Keep the contacts clean. This
control should be moved from maximum to minimum daily
to prevent the controls from sticking.
3. See the engine Instruction Manual for periodic engine
maintenance information. Change the crankcase oil at
regular intervals using the proper grade of oil as recom-
mended in the engine operating manual. Change the oil
filter in accordance with the instructions in the engine
operating manual. When the oil filter is changed add one
quart of oil to the crankcase to replace the oil held in the
filter during operation.
4. Belts tend to loosen after the first 30 or 40 hours of oper-
ation. Check the cooling fan belt and tighten if necessary.
DO NOT OVER TIGHTEN.
BEARING MAINTENANCE
This welder is equipped with a double-shielded ball bearing
having sufficient grease to last indefinitely under normal ser-
vice. Where the welder is used constantly or in excessively
dirty locations, it may be necessary to add one-half ounce of
grease per year. A pad of grease one inch wide, one inch
long and one inch high weighs approximately one-half
ounce. Over greasing is far worse than insufficient greasing.
When greasing the bearings, keep all dirt out of the area.
Wipe the fittings completely clean and use clean equipment.
More bearing failures are caused by dirt introduced during
greasing than from insufficient grease.
SAE-400
WARNING