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OM-166 941 Page 23
SECTION 8 − MAINTENANCE
8-1. ROUTINE MAINTENANCE (Table 8-1)
IMPORTANT: Every six months inspect the labels on
this unit for legibility. All precautionary labels must be
maintained in a clearly readable state and replaced
when necessary. See the Parts List for part numbers of
precautionary labels.
WARNING: ELECTRIC SHOCK can kill.
• Do not touch live electrical parts.
• Stop engine, and disconnect negative (−)
battery cable from battery before inspecting,
maintaining, or servicing.
MOVING PARTS can cause serious injury.
• Keep away from moving parts such as fans,
belts, and rotors.
HOT ENGINE PARTS can cause severe
burns.
• Wear protective gloves and clothing when
working on a hot engine.
BATTERY ACID can burn eyes, skin, destroy
clothing, and damage other material.
• Wear correct eye and body protection.
Maintenance to be performed only by qualified
persons.
A. Cables And Wiring
WARNING: Read and follow safety informa-
tion at beginning of entire Section 8-1 before
proceeding.
Check interconnecting wiring and connections for
tightness and flaws. Be sure that the weld output cable
connections are clean and tight. Check the insulation for
breaks or other signs of damage. Repair or replace
cables or wiring as necessary.
B. Battery
WARNING: Read and follow safety informa-
tion at beginning of entire Section 8-1 before
proceeding.
Inspect the battery for loose connections, damaged
cables, corrosion, cracked case or cover, loose
holddowns, and loose or deformed terminal posts.
Clean and tighten connections, replace cables, or
replace battery if necessary.
C. Oil, Filter, And Drain
WARNING: Read and follow safety informa-
tion at beginning of entire Section 8-1 before
proceeding.
The engine is equipped with a full-flow oil filter. Change
the oil and filter according to instructions on unit mainte-
nance label and in engine Owner’s Manual (Deutz
F4L-912 engine). Use correct type and grade of oil as
listed in instructions for expected temperature range be-
fore next oil and filter change.
This unit is equipped with an oil drain hose secured in a
clamp behind the rear panel. A valve is provided in the
hose inside the right side base rail. To drain oil from en-
gine, remove drain hose from clamp and open valve.
Close valve and reinstall hose into clamp before adding
new oil.
IMPORTANT: This engine is equipped with an Oil Pres-
sure Shutdown gauge/switch and an Oil Temperature
Shutdown gauge/switch. If oil pressure becomes too
low or oil temperature rises to a level that may cause en-
gine damage, the respective gauge/switch shuts down
the unit. The shutdown oil pressure has been factory set
at 30 psi (207 kPa), and the shutdown oil temperature
has been set at 265° F (130° C).
D. Cleaning And Inspecting
WARNING: Read and follow safety informa-
tion at beginning of entire Section 8-1 before
proceeding.
When performing routine oil changes at intervals
specified on the unit maintenance label, clean and
inspect the unit as follows:
1. Keep the inside of the welding generator clean by
blowing out the unit with clean, dry compressed
air.
2. Wipe oil and fuel spills from engine immediately
to avoid accumulation of dust.
3. Check for fluid leaks indicating loose oil or fuel
connections. Tighten loose connections, and
clean oil or fuel spills off engine.
IMPORTANT: See the engine Owner’s Manual (Deutz
F4L-912 engine) for complete engine care.
Table 8-1. Maintenance Schedule
Frequency* Maintenance
Every day. Check fuel and oil levels (see Sections 4-4, 4-5, and 8-1C, and engine Owner’s Manual,
Deutz F4L-912 engine).
Every 100 to 150 hours. Change oil and filter (see engine Owner’s Manual, Deutz F4L-912 engine).
Check cables, wiring (see Section 8-1A), and battery (see Section 8-1B).
Units in heavy service environments: Check labels; clean and inspect unit (see Section 8-1).
Change fuel/water separator (see Section 8-3).
Every 250 hours. Check and clean spark arrestor muffler (see Section 8-11).
Every 1000 hours. Replace fuel filter (see Section 8-4).Check brushes and slip rings (see Section 8-9).
Check all labels (see IMPORTANT block, Section 8-1). Clean and inspect unit (see Section 8-1D).
*Frequency of service is based on unit operated 40 hours per week. Increase frequency of maintenance if usage exceeds 40 hours per week.