Hobart Brothers 6910, Operation And Maintenance Manual With Illustrated Parts List

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B. Assuming other conditions are normal, the actuator will go to, or remain in, IDLE position under the
following conditions.
(1) No 12-V DC power
(2) No voltage from control box to actuator
C. The actuator will “surge” under the following conditions:
(1) “Stability” or “gain” adjustment set too “high”
(2) Throttle linkage binding
9. Engine Trouble Shooting Procedures
A. General
The following engine trouble shooting procedures were taken from John Deere Diesel Handbook. Certain
abnormal conditions which may interfere with satisfactory engine operation, together with methods of de-
termining the cause of such conditions, are covered in the Trouble Shooting Chart.
The ability of the engine to start and operate properly depends primarily on two things:
(1) The presence of an adequate supply of air, compressed to a sufficiently high compression pres-
sure.
(2) The injection of the proper amount of fuel at the right time.
Lack of power, uneven running, excessive vibration, stalling, and hard starting may be caused by low com-
pression, faulty injection in one or more cylinders, or lack of sufficient air. Refer to John Deere Diesel
Handbook for trouble shooting and repair procedures.
10.Illustrations
Illustrations, Figures 1 through 4, are referred to throughout the Trouble Shooting Chart.
3-1 Dec 17/93 Revised
Page 4
OM-2028