jcb G70RS User manual

1
RS T4F Diesel Generator
G70RS – G125RS
EN - 9818/3700 ISSUE A 02/2020
Quick Start Guide

2Please consult your manual for full information or consult your local dealer.
> This Quick Reference Guide is to provide quick and simple information to the Operator
and does not include any health and safety aspects. In addition, because of our continual
development of machines, features described in this Quick Reference Guide may differ
from those on your machine. Nor errors and emissions be entirely ruled out
> This Quick Reference Guide DOES NOT replace the Operators Manual. You MUST
read ALL the disclaimers and safety and other instructions in the Operators Manual
before initially operating this product. Accordingly, no legal claims can be entertained on
the basis of the data, illustrations or descriptions in this Quick Reference Guide.
> This machine should not be operated by any person who isn’t appropriately qualified or
had the appropriate training.
> Operation of this machine without periodic maintenance could cause it to malfunction.
> For more information please contact your JCB Dealer.
Disclaimer

RS T4F Diesel Generator | G70RS – G125RS 3
Disclaimer ..........................................................................................................................................2
Dimensions & volumes .......................................................................................................................4
Key components .................................................................................................................................5
General checks ...................................................................................................................................9
Control panel ................................................................................................................................... 11
Battery isolator .................................................................................................................................20
Multi voltage selection ......................................................................................................................21
Fuel connections ...............................................................................................................................22
Positioning ........................................................................................................................................23
Lifting ...............................................................................................................................................24
Emergency stops ..............................................................................................................................25
Maintenance schedule.......................................................................................................................26
Service checks ..................................................................................................................................27
Your notes ........................................................................................................................................30
Index

4Please consult your manual for full information or consult your local dealer.
Dimensions and volumes
Model G70RS G125R S
3 Phase – 480v – kW (prime power) 56 100
3 Phase – 480v – A 84 151
3 Phase – 208v – kW 56 100
Single phase – 240v – kW 37 66
Dimensions – inches (LxWxH) 126 x 43 x 83 126 x 43 x 83
Weight (operating) – lbs 5739 6615
Dimensions (with trailer) – inches (LxWxH) 182 x 73 x 105 182 x 73 x 105
Weight (operating) with trailer – lbs 7239 8115
Aftertreatment SCR SCR
Fuel tank capacity – US gallon 132 132
Fuel consumption @ 75% PRP – US gallon 3.65 5.42
Fuel autonomy – hours 36 24
DEF tank capacity – US gallon 4.5 4.5
DEF consumption @75% PRP – US gallon 0.12 0.16
DEF autonomy– hours 37. 5 28
Noise level (23ft @ 75% load) 66 66
Fuel – EN590 Diesel fuel types - Auto/C0/C1/C2/C3/C4 BS2869 Class A2
Lube Oil – API CH4-SAE 10W40
Coolant – ASTM D6210
* Wet weight with fuel

RS T4F Diesel Generator | G70RS – G125RS 5
Key components – enclosure
A Trailer
B Front left access door
C Rear left access door
D Front – exhaust system panel
E Rear – air inlet panel
F Rear right access door
G Front right access door
Fig 1
B
D
A
C
E
F
G

6Please consult your manual for full information or consult your local dealer.
Key components – generator
A Cooling filler access point
B Bulkhead
C Radiator
D Battery
E Voltage control rotary switch
F Alternator
G Fuel tank filler
H DEF (Diesel Exhaust Fluid) tank filler
J SCR (Selective Catalytic Reduction)
K Air filter
Fig 2
E
F
C
A
B
D
A
KJ
B
C
HG
FED
A Exhaust system
B Engine
C Skid
D Camlock connections
E Control panel
F Power cable exit

RS T4F Diesel Generator | G70RS – G125RS 7
Key components – engine
A Inlet manifold
B EGR (Exhaust Gas Recirculation) cooler
C Flywheel housing
D Fuel filters – primary & secondary
E ECU (Electronic Control Unit)
F CCV (Crankcase Ventilation) filter
G Engine oil filter
H Engine oil filler
J Engine dipstick
K Throttle
Fig 3
A
B
JK
C
G
H
F
ED
A
C
B
D
E
G
F
H
J
K
A Coolant filler
B Expansion tank
C Radiator
D Charge alternator
E Turbocharger
F Oil sump
G Starter motor
H DEF injector
J SCR
K Air filter

8Please consult your manual for full information or consult your local dealer.
K
C
D
L
A
B
H
J
G
F
E
Key components – control panel
A Panel mount buzzer
B Analogue hour counter
C Digital controller
D Connection box
E Limit switch
F Din rail terminal
G Automatic Voltage Regulator (AVR)
H Breaker
J Test point
K Camlock connections 400A
L Coolant heater and battery charger sockets
Fig 4

RS T4F Diesel Generator | G70RS – G125RS 9
General checks
Before starting the engine
Once you have installed your generator, we
recommend making some important checks before
starting your machine. Points to check include:
> Make sure the battery isolator is at ‘off’
position before carrying out any checks.
> Check all belts, guards and panel covers are
firmly secured.
> Check the installed wiring to ensure all
connections are firmly installed in the correct
position, and that wires are in good condition.
> Make sure the battery connections are secure
and polarity of connections are correct.
> Ensure there is fuel in the fuel tank.
> If the machine has not been run previously,
if it has run out of fuel or if the fuel supply
has been reconnected then the fuel system
must be primed prior to starting. Check for
fuel leaks during this process.
> Check level of coolant in machine radiator,
and top-up if low.
> Check hoses for damage or loose clamps.
> Check level of engine oil using dipstick.
> Check fuel filter/water separator for presence
of water or contaminants.
> Check the position of the 3-way valve to
correct fuel source. Do not run the generator
with the 3-way valve set to the ‘off’ position
(if applicable).
> Visually inspect the engine and alternator for
any signs of damage, water, oil or fuel leaks.
> Make sure that all supplied documents are
kept in the document holder case.
> Always ensure the machine intake and outlet
air vents and grills are not obstructed or
blocked in any way to allow good airflow
through the machine.
> Check the engine intake air filter is correctly
fitted, and that there are no obstructions to
the incoming air.
> Make sure the alternator windings and assembly
are not damp, or dirty. Failure to do so could
result in damage to the alternator windings.
A
Fig 5
A Lever

10 Please consult your manual for full information or consult your local dealer.
General checks
If the windings are damp/dirty contact your
JCB Dealer to schedule a service.
> Make sure all the engine access doors are
closed and secured.
> With the exception of emergency power
generators, the engine should be warmed
up with a reduced load before applying the
full load.
Checks after running
Ensure the electrical load is switched OFF before
stopping the engine.
> Check the battery isolator is at the ‘off’ position.
> Fill the fuel tank. Make sure the filler cap and
the area round the filler opening are clean to
avoid contamination of the fuel.
> Make sure all the engine access doors are
closed and secured.
> If there is a risk of freezing, the cooling system
must contain the correct antifreeze.
> At temperatures below 0°C, prepare for the
next start by connecting the engine heater.
Coolant should be topped up when the engine is
stopped. Make sure enough time is allowed for
the engine/coolant to cool before the radiator cap
is removed.

RS T4F Diesel Generator | G70RS – G125RS 11
A
D
C
C
E
F
G
H
J
T
S
R
QP
L
MNMLK
BC C
Control panel – DEIF AGC 150
Fig 6
Item Function
A Power On Green – The controller power is On.
Off – The controller power is Off.
B Display Screen Viewing area 88.5 x 51.4mm. 6 lines, each with 25 characters.
CNavigation Move the selector on the screen.
DOK Enter the menu system.
Confirm the selection on the screen.
EBack Go to the previous page.
F Auto Mode The controller automatically starts and stops the generator according to the
system settings. No operator actions are needed.

12 Please consult your manual for full information or consult your local dealer.
Item Function
G Silence Horn Turns off an alarm horn (if configured) and enters the alarm menu.
H Shortcut Menu Gives access to: Jump menu, mode selection, test and lamp test .
J Semi-Auto Mode The controller cannot automatically start, stop, connect or disconnect the generator.
The operator can start, stop, connect or disconnect the generator.
The controller automatically synchronises before closing a breaker, and
automatically de-loads before opening a breaker.
K Mains Symbol Green: The mains voltage and frequency are ok, and the controller can
synchronise and close the breaker.
Red: Mains failure.
L Close Breaker Press to close the breaker.
M Open Breaker Press to open the breaker.
NBreaker Symbols Green: Breaker is On.
Green flashing: Synchronising or de-loading.
Red: Breaker failure.
PGenerator Green: The generator voltage and frequency are OK, and the controller can
synchronise and close the breaker.
Green flashing: The generator voltage and frequency are OK, but the Voltage
and Hertz OK timer is still running. The controller cannot close the breaker.
Red: The generator voltage is too low to measure.
QEngine Green: There is running feedback.
Green flashing: The engine is getting ready.
Red: The engine is not running or there is no running feedback.
RStop Stops the generator if semi-auto or manual is selected.
SStart Starts the generator if semi-auto or manual is selected.
T Load Symbol Off: Power management application.
Green: The supply voltage and frequency are OK.
Red: Supply voltage/frequency failure.
Control panel – DEIF AGC 150

RS T4F Diesel Generator | G70RS – G125RS 13
Control panel – DEIF
Stand Alone Manual Operation
Single generator, controlled manually through
its generator controller. Load is monitored by
the operator.
Starting Procedure
Perform all the pre-start checks before starting
the generator.
1. Set the MCCB to ‘off’ position.
2. Check all cabling connection and make sure
that all safety devices are functional.
3. Turn the battery isolator to ‘on’ position.
4. Controller will start the initialling process.
5. Press the ‘stop/reset’ button to clear any alarms.
6. Press the ‘semi auto mode’ button.
7. Press the start button. The generator
controller displays the start-up sequence.
8. After a short delay the engine will crank for up
to ten seconds followed by another ten second
pause. This cycle will repeat up to three times
until the engine runs smoothly. If the engine
does not start within this cycle the generator
controller will display ‘fail to start’.
9. Check the voltage displayed on the genset
controller.
10. Close the main circuit breaker. The generator
breaker LED will illuminate.
11. The power available indicator lamp will illuminate.
REMEMBER: Before stopping the
generator set, remove all electrical
load ensuring all consumers are
aware of the loss of power prior
to shutdown.
Stopping Procedure
Perform the procedure below to stop the
generator:
1. Turn off all loads to the generator.
2. Open the main circuit breaker. The power
available lamp will go off.
3. Press the ‘stop/reset’ button once. The
generator will stop after the specified cooling
time. Duration: 5min.
4. If ‘stop/reset’ button is pressed again the
generator will stop immediately.
5. The ready to load and generator available
LED indicators will go off.
6. Turn the battery isolator to ‘off’ position after
the engine has stopped.
Auto and Load Sharing Operation
Remote start and synchronizing multiple sets
must only be set up by a suitably trained and
competent person. Please refer to the operator
manual for more detailed instructions.

14 Please consult your manual for full information or consult your local dealer.
Control panel – DSE 7310
Fig 7
This button places the module into its STOP/RESET mode. This will clear any alarm
conditions for which the triggering criteria have been removed. If the engine is running
and the module is put into STOP/RESET mode, the module will automatically instruct the
generator to unload (‘Close Generator output’ becomes inactive. In STOP/RESET mode
the generator remains at rest.
This button places the module into its MANUAL mode. Once in MANUAL mode, the
module responds to the start button to start the generator and run it off load. The MCCB
need to be closed manually.
A Module display
B Four configurable status LED (Light
Emitting Diode)
C Transfer to generator - manual
mode only (not used)
D Generator available LED
E Start button
F Alarm mute and lamp test
G Generator breaker LED (not used)
H Auto mode
J Test mode (not used)
K Mains breaker LED (not used)
L Manual mode
M Stop/reset button
N Selected mode indication LED
P Mains available LED (not used)
Q Transfer to mains – manual mode
only (not used)
R Module display navigation button
A
B
C
E
F
H
L
M
N
R
J
Q
KG
D
P

RS T4F Diesel Generator | G70RS – G125RS 15
This button places the module into its AUTO MODE. This mode allows the module to
control the function of the generator automatically. The module monitors numerous
start requests via digital input, PLC and MSC link and when one has been made, the set is
automatically started. Once the generator is available, the module automatically instructs
the generator to synchronise and once in sync, to be place the generator on load (‘Close
Generator Output’ becomes active). Upon removal of the starting signal, the module
starts the Return Delay Timer and once expired, the load is automatically ramped off the
generator and then it is taken off load (‘Close Generator Output’ becomes inactive). The
generator then continues to run for the duration of the Cooling Timer until it stops. The
module then waits for the next start event.
This button is only active in the STOP/RESET mode, MANUAL mode. Pressing the Start
button in Stop/Reset Mode powers up the engine’s ECU but does not start the engine. This
can be used to check the status of the CAN communication and to prime the fuel system.
Used for navigating the instrumentation, event log and configuration screens.
Used to silences the audible alarm in the controller, de-activates the audible alarm output
(if configured) and illuminates all of the LED on the module’s facia as a lamp test function.

16 Please consult your manual for full information or consult your local dealer.
Control panel – DSE 8610
Fig 8
This button places the module into its STOP/RESET mode. This will clear any alarm
conditions for which the triggering criteria have been removed. If the engine is running
and the module is put into STOP/RESET mode, the module will automatically instruct the
generator to unload (‘Close Generator output’ becomes inactive. In STOP/RESET mode
the generator remains at rest.
This button places the module into its MANUAL mode. Once in MANUAL mode, the
module responds to the start button to start the generator and run it off load. To place
the generator on load, use the ‘Transfer to Generator‘ button. The module automatically
instructs the generator to synchronise and once in sync, to be place the generator on
load (‘Close Generator Output’ becomes active). To place the generator off load, use the
‘Open Generator‘ button. The module automatically ramps the load off the generator and
then takes it off load (‘Close Generator Output’ becomes inactive). Additional digital inputs
are available to perform these functions. If the generator is running off-load in MANUAL
mode and on load signal becomes active, the module automatically instructs the generator
to synchronise and once in sync, to be place the generator on load (‘Close Generator
Output’ becomes active). Upon removal of the on load signal, the generator remains on
load until either selection of the ‘STOP/RESET’ mode or ‘AUTO’ mode.
A Module display
B Four configurable status LED
C Close generator
D Generator available LED
E Start button
F Alarm mute and lamp test
G Auto mode
H Generator breaker LED
J Manual mode
K Stop/reset button
L Selected mode indication LED
M Open generator (manual mode
only)
N Module display Menu
navigation buttons
A
B
C
E
F
G
H
J
K
M
L
N
D

RS T4F Diesel Generator | G70RS – G125RS 17
This button places the module into its AUTO MODE. This mode allows the module to
control the function of the generator automatically. The module monitors numerous
start requests via digital input, PLC and MSC link and when one has been made, the set is
automatically started. Once the generator is available, the module automatically instructs
the generator to synchronise and once in sync, to be place the generator on load (‘Close
Generator Output’ becomes active). Upon removal of the starting signal, the module
starts the Return Delay Timer and once expired, the load is automatically ramped off the
generator and then it is taken off load (‘Close Generator Output’ becomes inactive). The
generator then continues to run for the duration of the Cooling Timer until it stops. The
module then waits for the next start event.
This button is only active in the STOP/RESET mode, MANUAL mode. Pressing the Start
button in Stop/Reset Mode powers up the engine’s ECU but does not start the engine. This
can be used to check the status of the CAN communication and to prime the fuel system.
Used for navigating the instrumentation, event log and configuration screens.
Used to silences the audible alarm in the controller, de-activates the audible alarm output
(if configured) and illuminates all of the LED on the module’s fascia as a lamp test function.
Close Generator – The Close Generator button controls the operation of the generator
load switch and is only active in the Manual Mode once the generator is available. Pressing
the Close Generator button when the generator is available and off load automatically
instructs the generator to synchronise and once in sync, to be place the generator on load
(‘Close Generator Output’ becomes active). If the generator bus is dead (has not supply
on it) the generator is placed on load immediately. Further presses of the Close Generator
button have no effect.
Open Generator – The Open Generator button is only active in the Manual Mode and
allows the operator to open the generator load switch. Pressing the Open Generator
button when the Generator is on load, automatically ramps the load off the generator and
then takes it off load (‘Close Generator Output’ becomes inactive). Further presses of the
Open Generator button have no effect.

18 Please consult your manual for full information or consult your local dealer.
Control panel – DSE
Stand Alone Manual Operation
Single generator, controlled manually through
its generator controller. Load is monitored by
the operator.
Starting Procedure
Perform all the pre-start checks before starting
the generator.
1. Turn on the digital controller switch.
2. Wait for a few seconds, to allow the controller
to power up and the display to stabilise.
3. Make sure the LED (Light Emitting Diode) is
illuminated on the earth leakage trip and there
is no trip active where required.
4. Make sure the main power supply MCCB
is switched off.
5. Check the emergency stop button is fully out,
if necessary twist to reset the button.
6. Complete all pre-start, system and engine
checks.
7. Press the start button and the machine will
start in manual.
8. The engine will run up to speed and stabilise.
9. Check that the machine operation is correct
using the screen information.
10. Make sure the ‘power on’ LED is illuminated
on the earth leakage trip and there is no
trip active.
11. Turn on the main power supply MCCB.
12. The generator can now be loaded.
13. If the earth leakage relay trips at this point
consult the site electrical installation engineer.

RS T4F Diesel Generator | G70RS – G125RS 19
REMEMBER: Before stopping the
generator set, remove all electrical
load ensuring all consumers are
aware of the loss of power prior
to shutdown.
Stopping Procedure
Perform the procedure below to stop the generator:
1. To stop the generator, remove any
electrical loads.
2. Turn the main power supply MCCB to the
off position.
3. Press the ‘stop/reset’ button once. The
generator will stop after the specified cooling
time. Duration: 5min.
4. If the ‘stop/reset’ button is pressed again then
generator will stop immediately.
5. The Ready to load and generator available
LED indicators will go off.
6. Turn the battery isolator to ‘off’ position
after the engine has stopped.
Auto and Load Sharing Operation
Remote start and synchronizing multiple sets
must only be set up by a suitably trained and
competent person. Please refer to the operator
manual for more detailed instructions.

20 Please consult your manual for full information or consult your local dealer.
Battery isolator
The battery isolator switch is used to disconnect the
battery from the machine electrics. The switch must
be turned to the off position if any maintenance
work is to be performed on the machine.
Some machine systems perform shut down
cycles after the engine stops. Wait until shut
down cycles are complete before setting the
battery isolator switch to the off position.
The Battery must be isolated at the end of a
working cycle or if the machine is being left
unattended and the lights are not required.
Disconnect
If the machine has an electronically controlled
engine, you must wait a period of time before
you isolate the battery. This is to allow the ECM
(Engine Control Module) to shutdown correctly.
The time period starts when you turn the ignition
off. Check the isolator switch label and the
operators manual for the correct time period.
In the event of an emergency, remove the
isolator key without waiting.
1. Wait for the specified duration after the
engine is turned off before you isolate the
battery (30 s).
2. Make the machine safe.
3. Turn the ignition key to the off position.
4. Wait for the engine ECM to shutdown
correctly (if installed).
5. Get access to the isolator key.
6. Turn the battery isolator key in the indicated
direction and remove.
Connect
Before you start the engine or use the machine
electrics, the battery isolator key must be installed
and switched on.
1. Make sure the ignition is set to off.
2. Insert the battery isolator key and turn in the
indicated direction.
A
B
Fig 9
Battery Isolator (where fitted)
A Battery
B Isolator switch