Hobart Welding Products OM-477 - Manuel (Page 19)

OM-477 Page 15
4-4. Engine Prestart Checks
Full
Full
1/2 in
(13 mm)
Full
Capacity:
9 qt (8.5 L)
Above
40
°
F (4
°
C)
Top View
2
Below
40
°
F (4
°
C)
1
5/16 in
Gasoline
ST-801 026-A / Ref. ST-159 727-C / Ref. ST-159 728-A
Tools Needed:
Check all fluids daily. Engine must
be cold and on a level surface.
.
This unit has a low oil pressure
shutdown switch. However,
some conditions may cause
engine damage before the en-
gine shuts down. Check oil lev-
el often and do not use the oil
pressure shutdown system to
monitor oil level.
1 Carburetor Heat Selector Pipe
2 Manifold
Turn pipe toward manifold in cold
weather and away from manifold in
warm weather.
3 Fuel
Add fresh fuel before starting
engine the first time (see mainte-
nance label for specifications). Fill
fuel tank up to 1/2 in. (13 mm) from
top to allow room for expansion.
Open fuel shut-off valve. Check fuel
level on a cold engine before use
each day.
4 Oil
After fueling, check oil with unit on
level surface. If oil is not up to full
mark on dipstick, add oil (see main-
tenance label).
5 Coolant
Add coolant if level is below bottom
of radiator filler neck.
Engine coolant is a mixture of water
and ethylene glycol base anti-
freeze. Add anti-freeze to mixture if
using unit in temperatures below 0
°
F (–18
°
C).
Keep radiator, air intake, and cool-
ing fins clean and free of dirt.
Y Incorrect engine tempera-
ture can damage engine. Do
not run engine without a
properly working 180
°
F
(80 ° C) thermostat and a 7 psi
(48 kPa) radiator cap.
.
To improve cold weather
starting:
Keep battery in good condition.
Store battery in warm area off
concrete surface.
Use correct grade oil for cold
weather.