Page 30 - Penske_Student Guide Book

Slide Topic Content Notes
If a Leak Is Detected…
 Do not drive the vehicle into
the maintenance facility
 Leave the vehicle
outdoors
 Identify the source of the
leak
 Repair the leak ONLY IF
YOU ARE TRAINED
 If you are not trained,
notify your supervisor
and/or the manufacturer

If You Suspect CNG Fuel System  Do not drive CNG vehicle into

Damage the maintenance facility until:
 CNG cylinders are

defueled and the high-

pressure fuel system is

depressurized
 Contact fuel system

manufacturer for

assistance
 All defueling is

outsourced to a

qualified vendor

Step 2: Prepare the CNG 2.3. ¼ Turn Valve
Vehicle  Confirm that the ¼ turn
valve is in the open
position and
 Attach a red “¼ Turn
Valve Open” tag to the
handle

2.4 Prior to bringing the CNG
vehicle into the facility
 Isolate each fuel tank
(cylinder) on the vehicle
by turning the manual ball
valve on each tank
clockwise to the
off/closed position
 Attach a red “Tank Valve
Closed” tag to each closed
tank (cylinder) valve
 On saddle mounted
systems, you must
open the rear access
door to access the
tank valve

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