Generator And Fan Belt Adjustment; Electric Governor System Adjustment; General - Hobart 60PL20 Operation And Maintenance Manual

OM-2053
D. Engine Accessories Adjustment

(1) Generator and fan belt adjustment

Refer to 2-1; Para. 8 for fan belt adjustment instructions.
Manufacturer
Model
Type
Displacement
Compression ratio
Firing order
Horsepower at 2000 RPM
Governed speed
Idle Speed
Electrical System
Oil capacity
Coolant capacity (approx.)
Fuel
Lube oil
E. Electric Governor System Adjustment (Woodward Governor Kit)

(1) General

The Hobart electric governor kit, used on units built before November, 1990 is identified as Hobart
Part No. 488701, and consists of Woodward governor parts with brackets and hardware added by
Hobart Brothers to install the governor system on generator sets in this series. The Woodward
governor system consists of (1) an electric controller, (2) an actuator, and (3) a magnetic-pick-
up that is installed in the flywheel housing, which senses engine speed off the flywheel teeth.
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 ad-
justment 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
2-3
Page 8
Perkins
6.3544
In-line, 6-cylider,
4-cycle Diesel
354 cu. in. (5.8 liters)
16 :1
1-5-3-6-2-4
107
2000 RPM +/- 4.5%
850 +/- 25 RPM
12 volt
15 quarts (14 liters)
20 quarts (13.5 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 2
December 31/91 Revised