freightliner WALK-IN VAN CHASSIS Operator's Manual page 80

Pre- and Post-Trip Inspections and Maintenance
With the vehicle on a level surface, check the oil
level in the transmission using one of the follow-
ing procedures:
Hot Check
•
Operate the transmission in a Drive (D) range
until normal operating temperature, 160 to
200°F (71 to 93°C), is reached.
•
Park the vehicle. Shift to Neutral (N) and apply
the parking brake. Let the engine run at idle.
•
Wipe the dipstick clean and check the fluid
level. A safe operating level is any level within
the HOT-run (upper) band on the dipstick. See
Fig. 11.6.
A
02/27/2002
A. Hot-Run Band
Fig. 11.6, Automatic Transmission Dipstick Markings
•
If the fluid is not within this range, add or drain
fluid as needed to bring the level to the top of
the HOT-run band. See the Walk-In Van Chas-
sis Maintenance Manual for fluid types and ca-
pacities.
IMPORTANT: Do not drain the fuel/water sepa-
rator completely. Drain no more than three
tablespoons of fluid at a time.
8. Check the fuel/water separator for contaminants
and leaks.
IMPORTANT: When draining fluid from a fuel/
water separator, drain the fluid into an appropri-
ate container and dispose of it properly. Many
states now issue fines for draining fuel/water
separators on the ground. On all types of sepa-
rators, stop draining fluid when you see fuel
come out of the separator drain valve.
B
f270077
B. Cold-Run Band
9. Inspect the fuel tanks, fuel lines, and connections
for leaks.
On vehicles equipped with a compressed natural
gas (CNG) engine, inspect the fuel tanks, fuel
regulators, fuel filters, and the fuel lines. Use a
natural gas detector to check for any leaks, or
spray the components with a soap-and-water
solution and check for bubbles.
9.1 Check that the fuel tanks are secured to
their mounting brackets and that the
mounting brackets are secured to the
frame.
9.2 Replace leaking fuel tanks.
9.3
If lines or connections are leaking, have
them repaired or replaced.
For repair and/or replacement procedures,
see Group 47 of the Walk-In Van Chassis
Workshop Manual, or take the vehicle in
to an authorized Freightliner dealer.
9.4
If equipped with fuel tank shutoff valves,
be sure the valves are fully open.
WARNING
Never operate the engine with the fuel tank shut-
off valves partly closed. This could damage the
fuel pump, causing sudden loss of engine power,
possibly resulting in serious personal injury due
to reduced vehicle control.
10. Check the fuel level in the fuel tank(s).
On vehicles equipped with a diesel engine be
sure that the fuel cap vent area is clean. Check
the fuel/water separator (if so equipped) for leaks
and, if needed, prime the fuel tank system.
On vehicles equipped with a compressed natural
gas (CNG) engine, check the pressure gauge
mounted in the fuel fill box to determine the
amount of fuel in the fuel tanks.
WARNING
Never fill fuel tanks to more than 95 percent of
their liquid capacity. This could make them more
likely to rupture from impact, possibly causing
fire and resulting in serious personal injury or
death by burning.
11.4