2012 SUZUKI ALTO fuel pressure

2
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
68PH0-74E
LAYOUT OF THE CNG SYSTEM
1 Changeover switch
2 High pressure pipe
3 Receptacle
4 Fuel lid switch
5 CNG cylinder valve
6 CNG cylinder7 Vent hose
8 CNG controller
9 CNG injectors
10 Low pressure & temperature sensor
11 Engine
12 Pressure regulator53MHMC001
13 Water hose
14 High pressure sensor
15 High pressure gauge
16 Low pressure hose
17 CNG filter
9
6
7
5
2
10
11
13 1 43
1012
14
1516
17
8

5
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
68PH0-74E
CNG FILLER VALVE
53MHMC007
The CNG filler valve is integrated in fuel
box next to petrol filling area.
CNG filler valve (1) can be uncovered by
pulling out the Filler valve cover (2) and it
can be covered by simply pushing it back.
Filling automatically gets cut off when the
cylinder pressure becomes equal to dis-
penser pressure. After CNG filling, ensure
that the filler valve cover (2) and fuel filler
lid (3) is closed.
NOTE:
• If the Fuel filler lid (3) is kept open, you
will not be able to start the vehicle.
• Engine will stop if the fuel filler lid (3)is
opened in vehicle stationary condition.
CNG CYLINDER
53MHMC008
CNG cylinder (1) is installed in the luggage
compartment.
CNG CYLINDER WARNING LABEL
53MHMC009
You may find this label on the CNG cylin-
der.
(1)
(3) (2)
CAUTION
Do not place any luggage or load
over cylinder as it may damage the
cylinder, pipe, hose, valve etc.
(1)
TO OBTAIN TESTING STATION INFORMATION
Visit the following internet / website address:
“www.peso.gov.in”

6
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
68PH0-74E
MANUAL SHUT-OFF VALVE
53MHMC010
Manual shut-off valve (2) is located on the
left hand side of the CNG cylinder.
MANUAL SHUT-OFF VALVE
OPERATION
53MHMC011
CNG supply can be switched off by closing
the manual shut-off 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.
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 cyl- inder needs to be checked and certified
every three (3) years from the date of ini-
tial 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 dis-
pensing stations or may result in confis-
cating the vehicle by enforcement
authorities.
• All the expenses for CNG cylinder test- ing has to be borne by the customer.
• As per Government regulation, CNG cyl- inder has to be discarded at 20 years
from the date of in itial testing as men- tioned 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 cylin-
der, accompanied by the repairer's certif-
icate of testing are furnished to the Chief
Controller and his permission is obtained
for its refilling.
OPENOMBCN G
onl yCLOSE(2)
12Open
Close
WA R N I N G
• 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 au thorized work-
shop.
• 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.

10
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
68PH0-74E
PERIODIC MAINTENANCE SCHEDULEKms (1 x 1000)
Month 1
15
610
12 20
2430
3640
48 50
6060
7270
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 IIII I I
All Fasteners Torque values T T T T T T T T T T T T
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 mi leage. Beyond 100,000 km, carry out the same services at the same
intervals respectively.
• For other maintenance details refer “Inspectio n & Maintenance” section in main Owner’s Manual.

12
FOR VEHICLES FITTED WITH CNG FUEL SYSTEM
68PH0-74E
FIRE EXTINGUISHER
(if equipped) Do's and Don'ts
53MHMC021
Do's1. Check pressure gauge periodically.Max charging pressure is 15Kgf/cm2 (in
green zone (2)).
2. When pressure drops, indicator nee-
dle(1) will shift to the red zone
(3).Immediately contact the fire extin-
guisher manufacturer as per the infor-
mation provided on the fire
extinguisher.
3. Get the fire extinguisher serviced only
through the manufacturer service cen-
tre.Refer the information provided on
the fire extinguisher to locate the near-
est service centre.
4. Ensure that the Fire extinguisher is always kept at its prescribed position in
the vehicle.
5. Refill the fire extinguisher immediately after use. Don't
• Do not use water for cleaning fire extin-
guisher. (Use clean cloth for removing
dust)
• Do not rely on used or discharged fire extinguisher.
LOCATION
53MHMC023
Fire extinguisher is located below co pas-
senger's seat.
PARTS DESCRIPTION
53MHMC024
(1) Fire extinguisher cylinder
(2) Seal
(3) Safety Pin
(4) Lever
(5) Nozzle
REMOVAL PROCEDURE
(from front seat)
53MHMC025
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 clamps (2).
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