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 adjustment 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
(items 4,5,6, and 7,Fig. 4),
or
regarding the proper hole in actuator lever in which to attach ball joint
(4)
cannot be determined be-
cause of slight variations in brackets, mountings, and engine performance characteristics. However,
definite rules must be followed in making the adjustments:
RULE 1. Adjust linkage to use FULL TRAVEL of actuator output shaft
(1).
RULE 2. Linkage must move speed control lever from FULL IDLE to FULL SPEED position, or
VERY CLOSE to FULL SPEED position in order for the generator to pull 125% load.
Check and adjust linkage as follows, with engine stopped.
(a) Before making adjustment, observe and note which hole in actuator lever
(3)
is used to mount
ball joint
(4).
It does not necessarily have to be the same hole as may have been previously used.
Disconnect ball joint
(4)
from actuator lever
(3).
(b) Be sure neither lever (the actuator lever, 3, or the fuel control lever) has slipped on shafts. If a
lever has slipped, position it correctly and tighten securely.
(c) Place both levers
(3 and 7)
in FULL IDLE position an attempt to connect ball joint
(4)
at the
hole in actuator lever
(3)
from which it was removed in step
(a).
If connection cannot be made,
loosen nuts (5) and adjust effective length of rod assembly (4,5,6 and 7, Fig. 4) so that connec-
tion can be made.
(d) Manually operate actuator lever back and forth between FULL IDLE and FULL SPEED. If ad-
justment is unsatisfactory, try another hole in ACTUATOR lever and readjust rod length.
(e) Tighten all parts securely when adjustment is completed.
OM-2028
June 20/89 Revised
2-3
Page 11
Summary of Contents for 6910
Page 2: ...This page intentionally left blank ...
Page 14: ...This page intentionally left blank OM 2028 Introduction June 20 89 Revised Page 2 ...
Page 40: ...This page intentionally left blank OM 2028 1 1 May 1 91 Revised Page 26 ...
Page 66: ...Engine Control Panel in Tilt out Position Figure 6 OM 2028 2 1 August 31 90 Revised Page 12 ...
Page 72: ...This page intentionally left blank OM 2028 2 2 June 20 89 Revised Page 6 ...
Page 128: ...Generator Set Figure 1 OM 2028 4 3 May 1 91 Revised Page 2 ...
Page 130: ...Canopy Assembly Figure 2 OM 2028 4 3 May 1 91 Revised Page 4 ...
Page 132: ...This page intentionally left blank OM 2028 4 3 May 1 91 Revised Page 6 ...
Page 134: ...Generator Set Without Canopy Figure 3 OM 2028 4 3 May 1 91 Revised Page 8 ...
Page 136: ...This page intentionally left blank OM 2028 4 3 May 1 91 Revised Page 10 ...
Page 138: ...Radiator and Cooling System Group Figure 4 OM 2028 4 3 May 1 91 Revised Page 12 ...
Page 142: ...Electric Governor Kit Figure 6 OM 2028 4 3 May 1 91 Revised Page 16 ...
Page 144: ...Fuel Lines Assembly Figure 7 OM 2028 4 3 May 1 91 Revised Page 18 ...
Page 146: ...Oil Line Assembly Figure 8 OM 2028 4 3 May 1 91 Revised Page 20 ...
Page 148: ...Stator Terminal Panel Assembly Figure 9 OM 2028 4 3 May 1 91 Revised Page 22 ...
Page 150: ...Power Module Panel Assembly Figure 10 OM 2028 4 3 May 1 91 Revised Page 24 ...
Page 152: ...Control Box Assembly Figure 11 OM 2028 4 3 May 1 91 Revised Page 26 ...
Page 154: ...Generator Controls Tray Assembly Figure 12 OM 2028 4 3 May 1 91 Revised Page 28 ...
Page 156: ...Protective Relays Tray Assembly Figure 13 OM 2028 4 3 May 1 91 Revised Page 30 ...
Page 158: ...Control Box and Internal Components Group Figure 14 OM 2028 4 3 May 1 91 Revised Page 32 ...
Page 160: ...Engine Control Panel Assembly Figure 15 OM 2028 4 3 May 1 91 Revised Page 34 ...
Page 162: ...This page intentionally left blank OM 2028 4 3 May 1 91 Revised Page 36 ...
Page 164: ...Output Terminal Board Assembly Figure 16 OM 2028 4 3 May 1 91 Revised Page 38 ...
Page 166: ...Generator Assembly Figure 17 OM 2028 4 3 May 1 91 Revised Page 40 ...
Page 168: ...Mounting Frame Assembly and Lifting Yoke Figure 18 OM 2028 4 3 May 1 91 Revised Page 42 ...
Page 170: ...Water Heater Figure 19 OM 2028 4 3 May 1 91 Revised Page 44 ...
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Page 174: ...This page intentionally left blank OM 2028 5 0 May 1 91 Revised Page 2 ...
Page 176: ...This page intentionally left blank OM 2028 6 0 June 20 89 Revised Page 2 ...
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