Governor Actuator F01
For service information on this component refer to the
Proprietary Literature Manual
Manufacturer – Regulateurs Europa
Model – Series 2221
Contents
Page 2 Introduction
Page 2 Assembly and installation
Page 2 Maintenance
M5f01005 Page 1 of 2
Governor Actuator Ruston RK215
Introduction
Actuator
The engines are fitted with a Regulateurs Europa series
2221 actuator of the electro-hydraulic type, comprising
an electrically operated pilot valve and hydraulic servo-
mechanism which operates the fuel pump racks.
The hydraulic system is completely self contained, with
its own servo oil reservoir and an internal oil pump
driven directly by the drive shaft. The hydraulic system is
self bleeding, and maintains oil pressure at a pre-set
value by means of two spring loaded accumulators - one Fig.1 Governor Actuator as fitted to the engine.
of which acts as a relief valve.
Assembly & installation
Full information on the actuator is contained in the
manufacturers literature.
Maintenance
For maintenance hours see schedule
B - Interval
Lubricate the external linkage and check the operation
F - Interval
Drain the oil and refill.
H - Interval
Fit service-exchange unit
M5f01005 Page 2 of 2 Section F01
Governor Actuator drive F02
Contents
Page 2 Diagram
Page 3 Introduction
Page 3 Removal/replacement
Page 3 Data
M5f02004 Page 1 of 3
Governor Actuator drive Ruston RK215
M5f02004 Page 2 of 3 Section F02
Governor Actuator drive Ruston RK215
Introduction
The governor actuator is driven by the camshaft gear, at
the free end of the engine, through a spur gear keyed to
the governor actuator shaft.
Removal/replacement
If the gears or bearings require renewing, ensure the
drive shaft, keys and distance piece are free from
damage and tighten the retaining nut to the figure quoted
in DATA.
If the governor gear requires renewal, check that the
shaft and key are free from damage and tighten the
retaining nut to the figure quoted in DATA.
When fitting the governor actuator to the drive housing,
shim as necessary to give correct backlash as quoted in
DATA
Data
Camshaft to drive gear backlash
new 0.123/0.30mm.
Drive gear retaining nut torque 190Nm.
Governor gear retaining nut
torque 10Nm.
Bevel gear to governor gear
backlash new 0.06/0.28mm.
Number of teeth 20
M5f02004 Page 3 of 3 Section F02
Governor Actuator linkage F03
Contents
Page 2 Diagram
Page 3 Introduction
Page 3 Governor fuel pump relationship
Page 4 Maintenance
Page 5 Adjustment / Initial Set-up
Page 5 Special Tools
M5F03011 Page 1 of 5
Governor Actuator linkage Ruston RK215
Governor/Actuator and Linkage
M5F03011 Page 2 of 5 Section F03
Governor Actuator linkage Ruston RK215
Introduction
The fuel control shafts are connected to the governor by
a series of levers and control rods. The control rods are
adjustable to compensate for wear in the linkage.
Fitted to the end of the 'A' bank control shaft, outside the
crankcase, is a control lever that is connected to the
governor and a hand shut off lever.
Turnbuckle Link Control lever
The control lever, which is free to rotate on the shaft, is
operated by a link from the governor. As the governor
moves from the minimum to the maximum fuel position
the control lever is moved upwards. The coil spring then
rotates the shut off lever, which is fixed to the shaft, to
operate the linkage to the unit injectors. The spring link
serves to protect the internal components of the Manual
governor and unit injectors should any part of the linkage Fig.1 Governor lever and linkage to theshutdown
control lever.
lever
be stiff or seized.
When the governor returns to the minimum fuel position Fig.1 Governor linkage
a pin operates on the shut down lever to close the unit
injectors. Spring protection, against seized or stiff
components, is provided on the linkage at its connection
with the unit injectors.
Governor fuel pump relationship
This relationship is most important and the figures given
below should be set and checked before attempting to
run the engine.
NOTE:- To ensure the correct relationship between the
Governor and fuel pumps adjustment must be made to
the turnbuckle link and ratio lever to ensure the engine
load matches the governor output indicator.
A final adjustment may be required when the locomotive
load control system is tested.
GOVERNOR OUTPUT 0 –
Ensure the fuel pump rack is at zero fuel 20mm
GOVERNOR OUTPUT 2 –
Full speed no load rack position 16mm Fig.2 Ratio control lever and linkage.
GOVERNOR OUTPUT 5 –
Full speed 50% load rack position 10mm
GOVERNOR OUTPUT 8 –
Full speed 100% load rack position 2.9mm
GOVERNOR OUTPUT 8.5 –
Overload stop set
GOVERNOR OUTPUT 10 –
Maximum fuel limited by overload stop
Fig.3 Governor fuel pump relationship
M5F03011 Page 3 of 5 Section F03
Governor Actuator linkage Ruston RK215
Maintenance
For maintenance hours see schedule
B - Interval
Lubricate the linkage and check for wear and tightness
of the components.
Adjustment / Initial Set-up
Should the linkage have been dismantled or components
replaced the alignment should be checked as follows:-
1. Set injector racks at mid position (10mm block)
and the Governor at position 5.
2. Fix link J (nominal length 570 mm) to levers D
and K with link F (nominal length 510 mm)
assembled to levers C and D. Set link F at 90O
to lever C as shown. Drill and pin lever C.
3. Repeat for lever E at 90O to link as shown. Drill
and pin lever E.
4. Set injector racks at no fuel (20mm block) and
governor at 0.
5. Fit governor lever H, Rod end bearings and
turnbuckle with locknuts to give a length of
115mm, and fit to ratio control lever A.
6. Set fixed lever B against stop on lever A and
lock in position with grub screw. Drill and pin
lever B.
.
7. Linkage is now set. If adjustment between
banks is found to be required. Links F and G
can be adjusted in steps of 1/2mm (1/2turn of
ball ends). Finer adjustment must be carried out
on individual control rack adjusting screws.
M5F03011 Page 4 of 5 Section F03
Governor Actuator linkage Ruston RK215
Special tools
Setting injector racks tool(zero fuel) 80.561.02340.300
Setting injector racks tool (mid fuel) 80.561.02339.300
Setting injector racks tool (max fuel) 80.561.02407.200
Fuel rack adjuster 80.561.02413.300
M5F03011 Page 5 of 5 Section F03
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