Engine Speed - Prochem EVEREST LP Operating Instructions Manual

MAINTENANCE
SERVICE GENERAL ADJUSTMENTS
USE EXTREME CAUTION while servicing while
machine is running. The high-speed mechanical
parts as well as high temperature components
may result in severe injury, severed limbs, or
fatality.

ENGINE SPEED

1. This unit uses a governor to set and maintain
engine speed. The engine speed is adjusted by
shifting the throttle adjustment lever located on
the front panel. The throttle adjustment lever
has four positions. The first position is idle, 900
RPM. At this position the throttle adjustment
lever is pulled out and is not locked in at the
console. The throttle adjustment lever has three
notches at its base. Push in the throttle
adjustment lever to the first notch and lock in
position for low speed, 1250 RPM. Push in and
lock the throttle adjustment lever at the second
notch for 1900 RPM, and the third notch for
2400 RPM.
2. The throttle adjustment lever is attached to a
governor. The governor has internal weights
that apply pressure to a shaft with an extending
arm. Attached to the arm is the carburetor
linkage, adjusting engine speed. NOTE: Units
are pre-set at the factory.
3. Engine RPM should drop approximately
100 RPM on high and low speed when the
vacuum inlets are covered.
4-9
LINKAGE ADJUSTMENT (Engine Off)
Unsnap the tip of the linkage from the throttle arm
ball, See "Linkage Adjustment" illustration. Pull the
throttle adjustment lever all the way out to the idle
position.
While holding the throttle arm down with your finger,
position the linkage underneath the ball as shown in
See "Linkage Adjustment" illustration. The ball
should barely touch the top of the adjustment arm.
If adjustment is required, loosen the locking nut,
adjust the linkage to the proper length, and re-
tighten the locking nut.
IDLE SPEED ADJUSTMENT (Engine Running)
Pull the throttle adjustment lever all the way out to
the idle position. Using a tachometer, turn the idle
adjustment screw, until 900 RPM is indicated. See
"Throttle Adjustment" illustration.
HIGH SPEED ADJUSTMENT (Engine Running,
pump off)
Push the throttle adjustment lever in and lock at the
third notch position (high speed). Using a
tachometer, adjust the spring tension nut, until 2400
RPM is indicated. See "Throttle Adjustment"
illustration.
DO NOT attempt to adjust without a tachometer
and NEVER adjust the engine above 2500 RPM .
Permanent damage may occur.
EVEREST 980086 02/18/03