Engine Operation; Before Starting The Engine; Starting The Engine - Lincoln Electric POWER-ARC 4000 SVM103-A Service Manual

B-5
7. AIR MIXTURE ADJUSTMENT SCREW: Adjusts the
amount of air mixed with fuel to obtain the
smoothest operation under load or at idle. The
POWER-ARC 4000 is shipped with the proper
adjustment already set. DO NOT ADJUST THE
AIR MIXTURE SCREW WITHOUT FOLLOWING
THE PROCEDURES OUTLINED BY BRIGGS &
STRATTON.
8. RECOIL STARTER: Manual, rope-type starter.
The handle position allows easy starting from
either ground level or pickup-truck level.
9. CHOKE: Provides a richer air/fuel
mixture for cold engine starting con-
ditions. See the topic ENGINE
OPERATION, below, for details on setting the
choke.
10. FUEL MIXTURE ADJUSTMENT SCREW: Adjusts
the amount of fuel mixed with air to obtain the
smoothest operation under load or at idle. The
POWER-ARC 4000 is shipped with the proper
adjustment already set. DO NOT ADJUST THE
FUEL MIXTURE SCREW WITHOUT FOLLOW-
ING THE PROCEDURES OUTLINED BY BRIG-
GS & STRATTON.
11. OIL DRAIN PLUG: Permits convenient draining of
engine oil during maintenance. Both sides of the
engine are equipped with an oil drain plug.
12. OIL FILL PLUG: Permits convenient filling of
engine oil during maintenance. Both sides of the
engine are equipped with an oil fill plug.

ENGINE OPERATION

WARNING
DO NOT RUN THE ENGINE AT EXCESSIVE SPEEDS.
The maximum allowable high idle speed for the
POWER-ARC 4000 is 3750 RPM, no load. Do NOT
adjust the governor screw on the engine. Severe per-
sonal injury and damage to the machine can result if it
is operated at speeds above the maximum rated
speed.
Read and understand all safety instructions included
in the Briggs & Stratton Operating and Maintenance
Instructions manual that is shipped with the POWER-
ARC 4000.
POWER-ARC 4000
OPERATION

BEFORE STARTING THE ENGINE

CHECK AND FILL THE ENGINE OIL LEVEL:
1. Place the machine on a level
surface.
2. Open the oil fill plug.
3. Fill (if necessary) until oil flows out the top of the fill
plug hole.
4. Replace the fill plug and tighten securely.
CHECK AND FILL THE ENGINE FUEL TANK:
1. Remove the fuel tank cap.
2. Fill the tank to allow approximately 1/4
inch (5 mm) of tank space for fuel
expansion. DO NOT FILL THE TANK
TO THE POINT OF OVERFLOW.
3. Replace the fuel tank cap and tighten securely.
NOTE: The engine will operate satisfactorily on any
gasoline meant for automotive use. A mini-
mum of 87 octane is recommended. DO NOT
MIX OIL WITH THE GASOLINE.
Use clean, fresh, lead-free gasoline. Leaded gasoline
may be used if lead-free is not available. However,
lead-free gasoline leaves fewer combustion deposits
and gives longer valve life. For engine protection from
fuel deposits, use Briggs & Stratton Gasoline Additive,
part number 5041. Purchase gasoline in quantities
that will be used within 30 days, to assure freshness.
NOTE: We DO NOT recommend using gasoline that
contains alcohol, such as gasohol. However,
if gasoline with alcohol is used, it MUST NOT
contain more than 10% Ethanol and MUST be
removed from the engine during storage. DO
NOT use gasoline containing Methanol.

STARTING THE ENGINE

NOTE: Remove all loads connected to the AC power
receptacles before starting the gasoline
engine.
FOR A "COLD" ENGINE:
1. Open the fuel shutoff valve on the bottom of the
fuel tank.
2. Place the choke lever in the lowest, downward
position.
3. Pull slightly on the recoil starter handle
until resistance is felt.