FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
CONTENTS
INTRODUCTION TO CNG..................................................................................................... 3
SAFETY PRECAUTIONS (Do’s & Don’ts).......................................................................... 3
LAYOUT OF THE CNG SYSTEM......................................................................................... 4
FUEL MODES........................................................................................................................ 5
SELECTOR SWITCH POSITION........................................................................................... 5
PETROL MODE...................................................................................................................... 5
AUTO MODE.......................................................................................................................... 5
FORCED CNG MODE........................................................................................................... 6
AUTOMATIC CHANGEOVER FROM CNG MODE TO PETROL MODE............................ 6
CNG LEVEL INDICATOR...................................................................................................... 6
CNG FILLER VALVE.............................................................................................................. 7
CNG CYLINDER ................................................................................................................... 7
MANUAL SHUT-OFF VALVE................................................................................................. 8
LIST OF GOVERNMENT APPROVED CNG CYLINDER TESTING STATIONS................ 9
CNG FUSES........................................................................................................................... 9
INSTRUMENT CLUSTER....................................................................................................... 9
CNG MALFUNCTION WARNING LAMP............................................................................ 10
CNG KIT IDENTIFICATION................................................................................................. 10
CNG WARNING LABEL...................................................................................................... 10
lifting partition grill (cargo) ............................................................................. 11
PERIODIC MAINTENANCE SCHEDULE .......................................................................... 12
SPECIFICATIONS................................................................................................................. 13
Fire Extinguisher (if equipped)................................................................................. 14
Parts Description........................................................................................................ 15
Removal Procedure .................................................................................................. 15
Procedure of Operation......................................................................................... 15
Fitment Procedure...................................................................................................... 16
Refilling Schedules................................................................................................... 16
1
2
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
INTRODUCTION TO CNG:
SAFETY PRECAUTIONS (Do’s):
SAFETY PRECAUTIONS (Don’ts):
CNG (Compressed Natural Gas) is principally constituted by methane. CNG is
considered as clean burning fuel. Due to
low density of CNG, it is compressed at a
pressure of around 200 bars to enhance the
vehicle on-board storage capacity.
1. If any service or body repair is to be
carried out, turn the manual shut off
valve on CNG cylinder valve to close
position prior to commencement of the
repair work.
1. Do not change/modify the configuration,
settings or the components from CNG
system.
CAUTION
In case of any symptom of CNG leakage or releasing noise or any external
damage to CNG piping or during accident, do not panic.
• Stop the vehicle and switch off the
engine, roll down the windows and
open all the doors
• Ensure to close manual shut off
valve.
• Contact Maruti Suzuki authorized
workshop immediatly for further
assistance.
2. Get the CNG cylinder checked every
Three (3) years from the date of last
testing / retesting of cylinder by government authorized CNG cylinder testing
agency.
3. If the vehicle does not changeover to
CNG in AUTO MODE, then have your
vehicle checked by Maruti Suzuki authorized workshop at the earliest.
4. Switch "OFF" engine while fuel filling
(CNG/Petrol).
5. After refueling CNG, ensure that the
CNG filler valve cover is closed (Other-wise vehicle cannot be started).
2. The CNG cylinder should not be repaired under any circumstances, in case
of any problem, consult with Maruti
Suzuki authorized workshop.
3. Do not adjust setting of CNG system.
4. Never install LPG or any other gas
cylinder in place of CNG cylinder.
5. Avoid carrying inflammable material near
the CNG cylinder.
6. Do not fill any other type of gas other
than CNG.
7. Do not press the accelerator pedal to
change from petrol to CNG MODE.
6. In AUTO MODE, It is programmed to
start the vehicle in petrol and automatically shift to CNG based on the
engine temperature etc. Do not press
the accelerator pedal to change from
petrol to CNG.
3
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
LAYOUT OF THE CNG SYSTEM
1
2
3
4
5
6
4
Changeover switch
High pressure pipe
Receptacle
Fuel lid switch
CNG cylinder valve
CNG cylinder
7
8
9
10
11
12
Vent hose
CNG controller (For Eeco passenger)
CNG injectors
Low pressure & temperature sensor
Engine
Pressure regulator
13
14
15
16
17
18
Water hose
High pressure sensor
High pressure gauge
Low pressure hose
CNG filter
CNG controller (For Eeco cargo)
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
FUEL MODES
SELECTOR SWITCH POSITION
There are three fuel modes in the vehicle
(Petrol, Auto and Forced CNG) which are
selectable by pressing the selector switch
(1) located on the right side of the steering
wheel on the dashboard.
AUTO MODE
CNG LED
(GREEN) blinks
w WARNING
Make sure that the parking brake is
applied fully and the transmission is
in Neutral before attempting to start
the engine.
CAUTION
• Stop turning the starter immediately
after the engine has started or the
starter system can be damaged.
• Do not crank the engine for more
than 15 seconds at a time. If the
engine doesn’t start on the first try,
wait about 15 seconds before trying
again.
Petrol LED
(ORANGE) "ON"
PETROL MODE
CNG LED
(Green)
"OFF"
PRESS
NOTE:
• Do not press the accelerator pedal to
changover from petrol to CNG model.
• With ignition switch "ON" and engine
not running, blinking of CNG malfunction
warning lamp indicates that fuel filler valve
cover is not closed properly. Vehicle will
not start in this condition.
PETROL LED
(ORANGE) "ON"
In this mode vehicle starts in petrol and
continue running in petrol mode. In this
mode, petrol indicator glows continuously in
ORANGE color and CNG indicator (GREEN)
will remain "OFF".
In this mode engine starts in petrol mode
and then automatically changes to CNG
after reaching programmed warming up condition. With ignition switch ON and vehicle
started in “AUTO MODE”, CNG indicator
blinks (Green Color), and PETROL indicator
glows (Orange color) continuously. After
changeover to CNG, CNG indicator will glow
continuously and PETROL indicator switches
OFF automatically.
Note:
• It is always recommended to start the
vehicle in AUTO MODE or PETROL
MODE to enhance the engine life.
• The fuel changeover to CNG may not
happen if the vehicle is started when the
ambient / engine temperature is below
Zero Degree Celsius. In such a case,
5
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
run the engine in PETROL MODE till
it warms up and then try restarting the
engine to changeover to CNG.
FORCED CNG MODE
(Emergency use Only)
CNG LED
(GREEN) "ON"
Press
Petrol LED (ORANGE) "OFF"
This is emergency mode and may be used
in cases where there is no petrol in petrol
tank. In this mode vehicle starts in CNG
and continues running in CNG mode. With
ignition “ON” and engine not running, press
and hold the changeover switch till CNG
indicator glows continuously. In this mode,
CNG indicator glows continuously in GREEN
color and Petrol indicator (ORANGE) remains "OFF".
Note:
• It is recommended to keep sufficient
amount of petrol in the petrol tank and
refill it periodically.
6
•
The vehicle may not start in Forced CNG
mode if the ambient / engine temperature is below Zero Degree Celsius. It
is recommended to start the vehicle in
Auto mode.
CNG LEVEL INDICATOR
(On Dashboard)
Maximum
AUTOMATIC CHANGEOVER FROM CNG
MODE TO PETROL MODE
CNG Level
indicator
If CNG is finished while the engine is running, vehicle will automatically change over
from CNG mode to Petrol mode & CNG
malfunction warning lamp will start blinking.
Petrol indicator (ORANGE color) will glow
continuously and CNG indicator (GREEN
color) will switch OFF automatically.
To acknowledge this information, press
the changeover switch once. The CNG
malfunction warning lamp will stop blinking
after the changeover switch is pressed and
Petrol indicator (ORANGE color) will glow
continuously.
NOTE:
• It is recommended to keep sufficient
amount of petrol in the petrol tank to
prevent engine stalling while automatic
changeover from CNG mode to Petrol
mode.
• In case the CNG malfunction warning
lamp does not stop blinking after pressing the changeover switch, take the
vehicle to the nearest MARUTI SUZUKI
dealer.
Minimum
Reserve CNG
level Indicator
(RED)
CNG level indicator is built into the changeover switch. It consists of four green and
one red LEDs, which indicates approximate
amount / level of remaining CNG in the
cylinder. Red LED of CNG level indicator
glows when reaches to reserve quantity.
NOTE:
•
When CNG reserve level indicator glows,
refill CNG as soon as possible.
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
CNG FILLER VALVE
CNG CYLINDER WARNING LABEL
(2)
CNG CYLINDER
The CNG filler valve (1) is located on the
left side of vehicle outboard.
CNG filler valve (1) can be unlocked by
pulling out the Filler valve cover (2) and
can be covered by simply pushing it back.
Filling automatically gets cut off when the
cylinder pressure becomes equal to dispenser pressure. After CNG filling, ensure that
the filler valve cover (2) is closed.
Note:
• If the Fuel filler cover (2) is not closed
properly, you will not be able to start
the vehicle.
• Engine will stop if the fuel filler cover (2)
is opened in vehicle stationary condition.
CNG cylinder (1) is installed in the luggage
compartment, and is covered with protective
cage (if equipped)
CAUTION
Do not sit or carry items luggage or
load on the top of cylinder cage, even
if items are small & light. Objects on
the top of the cage could be thrown
about in case of accident, causing injury or obstruct the driver's rear view.
Cylinder cage may also get damaged.
You may find this label on the CNG cylinder.
7
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
Manual Shut-off valve
CNG supply can be switched off by closing
the manual shutoff valve.
Valve closing: Turn the knob completely
in clockwise direction to close the CNG
supply to Engine.
Valve opening: Turn the knob completely
in anti-clockwise direction to open the CNG
supply to Engine.
Manual shut-off valve (2) is located on the
left hand side of the CNG cylinder.
Manual Shut-off valve operation
Open
8
Close
Note:
• If the manual shut-off valve is not
opened fully, then the engine may not
run properly.
• If the manual shut-off valve is in closed
condition, it is not possible to fill CNG
into the cylinder.
Note:
• As per Government regulation, CNG cylinder needs to be checked and certified
every three (3) years from the date of
initial testing as mentioned on the CNG
cylinder identification plate.
• Customer has to present the vehicle to
a government approved testing agency.
• Failure to test the cylinder may result
in denying of CNG filling by the CNG
dispensing stations or may result in
confiscating the vehicle by enforcement
authorities.
• All the expenses for CNG cylinder testing
has to be borne by the customer.
•
•
•
As per Government regulation, CNG
cylinder has to be discarded at 20 years
from the date of initial testing as mentioned in the CNG cylinder identification
plate.
Customer has to discard the cylinder at
his / her expense through government
approved scrap agencies.
No person shall refill any cylinder, which
has been repaired under sub-rule (2)
with any gas unless a full report on
the repairs and test carried out on the
cylinder, accompanied by the repairer's
certificate of testing are furnished to the
Chief Controller and his permission is
obtained for its refilling.
w WARNING
• Never remove the cylinder valve
from the cylinder assembly. For any
assistance consult Maruti Suzuki
authorized workshop.
• Never try to clean the cylinder. In
case of any problem, contact Maruti
Suzuki authorized workshop.
• Do not reuse the cylinder valve,
once it is replaced / removed from
cylinder assembly.
• Even if the CNG from the cylinder
is consumed till engine stops, some
amount of CNG will be left out in
the tank under pressure.
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
list of approved cng cylinders
testing stations
To obtain testing stations infromation visit
the following internet website address :
“www.peso.gov.in”
CNG Fuses
INSTRUMENT CLUSTER
1) Speedometer
2) Odometer / Tripmeter
3) Odometer / Tripmeter selector knob
4) Other warning & indicator lamps
5) Fuel Indicator
6) CNG malfunction warning Indicator lamp
EXAMPLE
9
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
CNG Malfunction Warning Lamp
When the ignition switch is turned "ON",
this CNG malfunction warning lamp comes
on briefly, to check that the CNG system
is troublefree.
•
If CNG malfunction warning lamp glows
continuously, with ignition "ON" there is
some problem with the CNG system.
Immediately get your vehicle checked
by Maruti Suzuki authorized workshop.
•
If CNG malfunction warning lamp blinks
during engine running, it means there is
some problem in CNG system in which
vehicle cannot continue running on CNG
MODE and automatically switchover to
petrol mode. Have your vehicle checked
at Maruti Suzuki authorized workshop.
In case of Automatic switchover from
CNG to Petrol when CNG gas is finished, CNG malfunction warning lamp
also blinks. Please refer to section
"AUTOMATIC CHANGEOVER FROM
CNG MODE TO PETROL MODE"
10
Note:
With ignition switch "ON" and engine not
running, blinking of CNG lamp indicates that
CNG filler valve cover is open. Vehicle will
not start in this condition. Close CNG filler
valve cover in order to start the vehicle.
CNG KIT IDENTIFICATION
CNG WARNING LABEL
CNG cylinder identification number and CNG
kit installation date is located below CNG
filler valve as shown.
Front Driver door
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
lifting partition grill (CARGO)
Rear Slide Door (Right Side)
There are four locking points for partition
grill (a), (b), (c) and (d)
Disengage bracket (2) from clamp (3) by
lifting it upwards
CNG warning label is located on front and
rear RH doors.
Lift lever (1) located at four points (a),
(b), (c) and (d)
Partition (4) can be raised by lifting upwards
as shown in figure.
11
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
PERIODIC MAINTENANCE SCHEDULE
Kms (1 x 1000)
Month
1
1
5
6
10
12
20
24
30
36
40
48
50
60
60
72
70
84
80
96
90
108
100
120
All Joints (Gas leakage)
I
I
I
I
I
I
I
I
I
I
I
I
Coolant Hoses
(Leakage, Damage)
I
I
I
I
I
I
I
I
I
I
I
I
All Fasteners Torque values
T
T
T
T
T
T
T
T
T
T
T
T
CNG reducer filter cartridge
with O-Ring
-
-
-
-
-
R
-
-
-
R
-
-
CNG low pressure filter
cartridge with O-Ring
-
-
-
R
-
R
-
R
-
R
-
R
CNG cylinder leak testing and
certification
Every 3 years from the date of initial testing by govt. approved testing agency
CNG filler receptacle O-Ring Replace every 4 years or 300,000 Km, whichever comes earlier
T.........Tighten to Specified Torque
I...........Inspect and correct or replace if necessary
R.........Replace
Note:
This table includes services as scheduled up to 100,000 km mileage. Beyond 100,000 km, carry out the same services at the
same intervals respectively.
For other maintenance details refer “Inspection & Maintenance” section in main Owner’s Manual.
12
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
SPECIFICATIONS
Mass (Weight) (Kgs)
Passenger
Cargo
Kerb Weight
1010-1040 Kgs
1000 Kgs
Gross Weight
1510 Kgs
1540 Kgs
Seating Capacity
5 persons
2 Persons
Fuel Capacity (litres)
Petrol
CNG (Water Filling Capacity)
40 L
65 L
Note:
Specifications are subject to change without notice.
NOTE:
1) It is recommended to run the vehicle on petrol mode for 5~10 kms after every 300~500 km run in CNG mode to keep fuel system
in good condition.
2) Always keep minimum 5 litres of petrol in your petrol tank.
3) For others specifications refer main Owner's Manual provided along with the vehicle.
13
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
fire extinguisher (if equipped)
Do's and Don'ts
LOCATION (IN PASSENGER)
5. Refill the fire extinguisher immediately
after use.
Don't
1. Do not use water for cleaning fire extinguisher. (Use clean cloth for removing
dust)
2. Do not rely on used or discharged fire
extinguisher.
lOCATION (IN Cargo)
Do's
1. Check pressure gauge periodically. Max
charging pressure is 15Kgf/cm2 (in green
zone (2)).
2. When pressure drops, indicator needle (1)
will shift to the red zone (3). Immediately
contact the fire extinguisher manufacturer
as per the information provided on the
fire extinguisher.
3. Get the fire extinguisher serviced, only
through the manufacturer service centre.
Refer the information provided on the fire
extinguisher to locate the nearest service
centre.
4. Ensure that the Fire extinguisher is always kept at its prescribed position in
the vehicle.
14
(1)
Fire extinguisher (1) is located below the
rear seat as shown.
(1)
Fire extinguisher (1) is located between
driver's and co-passenger as shown.
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
Parts Description
Removal Procedure
Procedure of Operation
1) Fire extinguisher cylinder
2) Seal
3) Safety Pin
4) Lever
5) Nozzle
Lift Lever (1) of fire extinguisher slightly
upwards and pull the fire extinguisher in the
direction as shown in the figure, in order to
disengage it from clamp (2).
1. Hold the fire extinguisher (1) upright.
2. Break seal (2) by rotating the safety pin
(3).
3. Pull Safety pin (3)
15
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
Fitment Procedure
Refilling schedules
1. Refilling is necessary after every use.
2. Fire extinguisher needs refilling after every
3 years even if it is not used.
3. Inspect every 6 month by the manufacturer authorised service centre.
4. Squeeze lever (4) and direct the jet from
nozzle (5) towards the near edge of the
fire with a rapid (fast) sweeping motion.
5. Drive the fire towards the far edge until
flames are extinguished.
Note:
Fire extinguisher is only meant for small fire
caused in vehicle by external source only.
16
Insert the body of fire extinguisher (1) in
to the clamp (3) and place the nozzle (2)
carefully downwards, on the clamp
NOTE:
Ensure that the nozzle of fire extinguisher
is properly seated on the clamp.