Service Bulletin
General 161 Supplement 1
To fit the Perkins LC governor February 2002
Warning! Ensure that the engine cannot be started.
1 Clean the upper surface of the pump to remove all dirt and other debris.
Caution: Ensure that the fuel is turned off.
2 Release the locknut (A1) and remove the allen screw (A2) together with the locknut. Fit the
setscrew (B1) together with the sealing washer supplied with the governor. Tighten the setscrew to 5,1 Nm
(45 lbf in) 0,52 kgf m.
3 Release the locknut (C1) and adjust the governor droop allen screw (C2) clockwise until it can be turned no
further.
4 Adjust the screw (C2) in a counter-clockwise direction the number of turns specified, see table 1 on page 3.
Tighten the locknut (C1) to 4,5 Nm (40 lbf in) 0,46 kgf m.
Note: If an electronic overspeed device is fitted to the generator adjust it to operate at 65 Hz or above. Please
refer to the generator set instruction manual.
Continued
1
A Gen 1031 B Gen 1038
1
2
C Gen 1037
1
Service Bulletin - General
5 Start the engine and, while the engine runs, release the throttle lever locknut (A1) and the pivot locknut (B1).
Finger tighten only the pivot locknut and slowly adjust the throttle lever screw (C1) until the engine speed is
1950 rev/min to 2000 rev/min (65 Hz to 67 Hz) with no load. Tighten the adjustment screw locknut (A1) and
the pivot locknut (B1) to 5,7 Nm (50 lbf in) 0,58 kgf m. Stop the engine.
Note: To raise the engine speed from 1500 rev/min to 1950 rev/min (65 Hz to 67 Hz) will be approximately
nine turns clockwise on the throttle lever screw (C1).
6 Ensure that the engine is stopped and cannot be started. Remove the protector unit (if fitted) from the
governor mounting holes and ensure the threaded holes are free from dirt, oil and any other debris.
7 Ensure that the area around the governor blanking plug (A2) is clean and free from dirt and other debris.
Use a suitable tool to remove the threaded governor blanking plug, ensure that the plug seal remains attached
to the plug and retain the plug and seal. Ensure that the threads in the pump body are not damaged.
Caution: Ensure that no dirt or debris enters the pump.
Continued
1
2
A Gen 1033/1 B Gen 1032
1
C Gen 1034
2
Service Bulletin - General
8 Lubricate the LC governor ‘O’ ring (A3) with clean diesel fuel, rotate the actuator lever (A2) fully clockwise,
and insert the governor (A4) into the pump top cover. Ensure that the actuator lever (A2) is to the right of the
fuel control linkage (A1) see inset.
Warning! Diesel fuel and lubricating oil (especially used lubricating oil) can damage the skin of certain
persons. Protect your hands with gloves or a special solution to protect the skin.
Caution: Ensure that the governor is aligned correctly into the pump body. Incorrect alignment may cause
serious damage to the generator if there is no over-speed protection.
9 Press the governor (B1) fully into position and secure it with the four setscrews (B3). Tighten the setscrews
to 4,0 Nm (35.4 lbf in) 0,41 kgf m.
Note: The governor should fit easily into the pump. If it does not fit easily, do not use force, remove the
governor and check that the actuator lever (A2) is correctly aligned to the fuel control linkage.
10 Connect the electrical connector (B2).
11 The LC governor may now be programmed, please refer to the Installation Manual TPD 1470.
12 For 3.1524 series engines only, fit the heat shield (C2) over the nuts and washers to the lift bracket
stud (C1) and to the coolant elbow stud (C3). Secure with the nuts and washers supplied. Tighten the lift
bracket nut (C1) to 37 Nm (29 lbf ft) 3,7 kgf m, and the coolant elbow nut (C3) to 27 Nm (20 lbf ft) 2,8 kgf m.
Table 1:
Engine governor droop screw adjustment (counter clockwise)
3.1524G 1004G 1004TG 1004TG2 1004TG2A 1006 TAG 1006TAG1
1 turn 2 turns TBA TBA 0.75 turn TBA TBA
4
1
3 1
A Gen 1039 B Gen 1040
C Gen 1041
3
Service Bulletin - General
Notes:
l The Installation Manual TPD 1470 describes installation, programming and diagnostics for the
LC governor.
l Parts are available in various kits for the installation of the LC governor and associate components.
Table 2:
Kit number 1 2 3 4 5 6 7
Part number U5MK0650 U5MK0651 U5MK0652 U5MK0653 2880A016 U5MK0654 29990004
12-pin plug,
LC governor, Plug,
Socket,
‘O’ ring, Heatshield, Magnetic ‘O’ ring,
Wedge, Programming CD for
Contents Allen screws, Nuts, pickup, Screw,
Connector harness programming
Setscrew, Washers and adaptor Nut,
pins,
Sealing washer Washer
Blanking plugs
End
Issued by Perkins Engines Company Ltd, Peterborough PE1 5NA, England. Proprietary information of Perkins Engines Company Ltd
2002, all rights reserved. The information is correct at the time of print. This bulletin is for technical information only and cannot be used
as a basis for any claim including but not limited to warranty.
