Basic Engine Adjustments; Engine Accessories Adjustment; Electric Governor System Adjustment; Actuator Linkage Adjustment - Hobart 140GT17P Operation And Maintenance Manual With Illustrated Parts List

C. Basic Engine Adjustments
Adjustment procedures applicable to the diesel engine are included in the John Deere Diesel Hand-
book which accompanies this Hobart manual. Specific information for this particular engine is listed in
Figure 3.
D. Engine Accessories Adjustment
(1) Generator and fan belt adjustment Refer to 2-1; Para. 8 for fan belt adjustment instructions.
NOTE: Replace fan belts as a matched set.
Manufacturer
Model
Type
Displacement
Compression ratio
Firing order 1-5-3-6-2-4
Horsepower at 2000 RPM
Governed speed
Idle Speed
Electrical System
Oil capacity
Coolant capacity (approx.)
Fuel
Lube oil
E. Electric Governor System Adjustment
Two electric governor system main components, namely the magnetic pickup and controller, have
critical adjustments which can affect engine performance and therefore generator output. The adjust-
ment of the actuator linkage can also affect engine performance.
When the complete system is to be checked and/or adjusted, a definite sequence of procedures
should be followed:
First - Check or adjust actuator linkage
Second - Check or adjust magnetic pick-up
Third - Check or adjust electric control box

(1) Actuator linkage adjustment

The proper adjustment of the mechanical linkage between the electric actuator and engine speed
control lever is important to the satisfactory operation of the complete system.
Exact adjustment instructions regarding effective length of rod assembly (6, Fig. 4), or regarding
the proper hole in actuator lever in which to attach ball joint (4) cannot be determined because of
slight variations in brackets, mountings, and engine performance characteristics. However, defi-
nite rules must be followed in making the adjustments:
March 16/90
John Deere
6466T
Turbocharged, In-line, 6-cylinder,
4-cycle Diesel
466 cu. in. (7.64 liters)
15.8 : 1
250
1714 RPM +/-4.5%
850 +/-25 RPM
12 volt
18 quarts (17 liters)
12.44 gallons (47.00 liters)
Diesel oil conforming to ASTM
Specification D.975-66T,
Nos. 1-D and 2-D
MIL-L-2014C or MIL-L-2014D
Engine Specifications
Figure 3
OM-2029
2-3
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