Miller Bobcat 250 Diesel Owner's Manual page 48

D. Making Engine Speed Adjustments
To prevent binding,
be sure throttle link
is parallel with
throttle lever.
Do not twist
3
solenoid boot
while adjusting
engine speed.
OM-258413 Page 44
.
Complete Parts List is available at www.MillerWelds.com
6
1 2
4 5
!
Perform engine speed adjustments
only through side door.
.
Before adjusting engine speed, verify
throttle solenoid is installed properly
(see Section C on previous page).
Check engine speeds with a tachometer
or frequency meter (see Maintenance La-
bel). If necessary, adjust speeds as fol-
lows:
Start engine and run until warm. Turn V/A
control to max.
Adjusting Idle Speed
Turn Engine Control switch to Run/Idle po-
sition to energize throttle solenoid.
1 Throttle Solenoid
2 Idle Speed Jam Nut
3 Plunger
4 Throttle Link
5 Throttle Lever
Loosen jam nut. While holding throttle link
with a 3/8 in. wrench, turn plunger clock-
wise to increase idle speed or counter-
clockwise to decrease idle speed.
Tighten jam nut.
.
After adjusting idle speed, verify the
throttle link is parallel with the throttle
lever. If necessary, rotate plunger to
align throttle link.
.
7 Do not twist solenoid boot while ad-
justing engine speed.
Adjusting Weld/Power Speed
Start engine and run until warm. Turn V/A
control to max. Turn Engine Control switch
to Run position.
6 High Speed Jam Nut
7 Adjustment Screw
Loosen nut and turn high speed adjust-
ment screw counterclockwise to increase
speed. Turn screw clockwise to decrease
speed. Tighten jam nut.
Tools Needed:
3/8, 7/16 in.
10, 14 mm
259 852-A