6. overload protection, 7. servicing optional ether starting aid – Miller Electric Big Blue 251D User Manual
Page 33

OM-480 Page 29
8-6. Overload Protection
Ref. 156 199-B / 801 320-B
Y Stop engine.
.
When a fuse opens, it usually
indicates a more serious prob-
lem exists. Contact a Factory
Authorized Service Agent.
1
Magnetic Shutdown Switch
MS1 (Optional)
2
Fuse F (See Parts List)
Fuse F protects magnetic shut-
down switch MS1. If fuse F opens,
the engine stops.
3
Throttle Solenoid Fuse F4
(Optional)
Fuse F4 protects the throttle sole-
noid from overload on models with
automatic idle option. If fuse F4
opens, the engine does not run at
idle speed.
Check fuses and replace if open.
1
2
3
Tools Needed:
8-7. Servicing Optional Ether Starting Aid
ether2 7/96 − 153 382-A / S-0692
Y Stop engine.
Y Improper handling or expo-
sure to ether can harm your
health. Follow manufactur-
er’s safety instructions on
cylinder.
If engine does not start in cold
weather, check ether cylinder as
follows:
Remove cylinder from valve.
1
Ether Cylinder
2
Valve
3
Scale
Weigh cylinder to see if it is empty.
Be sure atomizer is not plugged and
valve fitting is clean.
Replace cylinder according to
Section 5-5.
1
2
Empty
Full
15 oz
33 oz
(935 g)
(425 g)
3