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AUTOMATIC TRANSMISSION — IF EQUIPPED .140
▫ Key Ignition Park Interlock ................141
▫ Brake/Transmission Shift Interlock System . . . .141
▫ Six-Speed Automatic Transmission — If
Equipped ........................... .141
MANUAL TRANSMISSION — IF EQUIPPED . . .150
▫ Shifting ............................. .151
▫ Downshifting ......................... .152
▫ Reverse Shifting ....................... .153
AUXILIARY SWITCHES — IF EQUIPPED ......153
POWER TAKE OFF OPERATION — IF EQUIPPED
(CHASSIS CAB ONLY) ....................154
▫ Stationary Mode ...................... .154
▫ Mobile Mode ......................... .155
ENGINE RUNAWAY .....................156
FUEL REQUIREMENTS ...................157
▫ Fuel Specifications ..................... .157
▫ Bio-Diesel Fuel Requirements ..............158
ADDING FUEL — 2500/3500 DIESEL MODELS . .160
ADDING FUEL — CHASSIS CAB MODELS .....162
▫ Fuel Filler Cap ........................ .163
▫ Avoid Using Contaminated Fuel ............163
▫ Bulk Fuel Storage — Diesel Fuel ............163
▫ Diesel Exhaust Fluid Storage ...............164
▫ Adding Diesel Exhaust Fluid ...............164
DIESEL EXHAUST FLUID ..................167
▫ System Overview ...................... .168
120 STARTING AND OPERATING
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Maximum Recommended Downshifting Speeds
Gear Selection 6 to 55 to 44 to 33 to 22 to 1
Maximum Speed 68 mph
(109 km/h) 50 mph
(80 km/h) 32 mph
(51 km/h) 19 mph
(31 km/h) 10 mph
(16 km/h)
CAUTION!
If you skip a gear while downshifting or downshift at
too high of a vehicle speed, these conditions may cause
the engine to overspeed if too low of a gear is selected
and the clutch pedal is released. Damage to the clutch
and the transmission can result from skipping a gear
while downshifting or downshifting at too high of a
vehicle speed even if the clutch pedal is held pressed
(i.e., not released).
Reverse Shifting
To shift into REVERSE (R), bring the vehicle to a complete
stop. Press the clutch and pause briefly to allow the gear
train to stop rotating. Beginning from the NEUTRAL (N)
position, move the gear selector in one quick smooth
motion straight across and into the REVERSE (R) area (the
driver will feel a firm “click” as the shifter passes the
“knock-over”). Complete the shift by pulling the gear
selector into REVERSE (R). The “knock-over” prevents the driver from accidentally
entering the REVERSE (R) shift area and warns the driver
that they are about to shift the transmission into REVERSE
(R). Due to this feature, a slow shift to REVERSE (R) can be
perceived as a high shift effort.
To shift out of REVERSE bring the vehicle to a complete
stop and press the clutch. Shifting out of REVERSE prior to
a complete stop may cause high shift effort.
AUXILIARY SWITCHES — IF EQUIPPED
There can be up to five auxiliary switches located in the
lower switch bank of the instrument panel which can be
used to power various electronic devices and PTO (Power
Take Off) – If Equipped. If Power Take Off is equipped, it
will take the place of the fifth Auxiliary switch. Connec-
tions to the switches are found under the hood in the
connectors attached to the auxiliary Power Distribution
Center.
5
STARTING AND OPERATING 153
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You have the ability to configure the functionality of the
auxiliary switches via the instrument cluster display. All
switches can now be configured for setting the switch type
operation to latching or momentary, power source of either
battery or ignition, and ability to hold last state across key
cycles.
NOTE:Holding last state conditions are met when switch
type is set to latching and power source is set to ignition.
For further information on using the auxiliary switches,
please refer to the Ram Body Builders Guide by accessing
www.rambodybuilder.comand choosing the appropriate
links.
POWER TAKE OFF OPERATION — IF EQUIPPED
(CHASSIS CAB ONLY)
This vehicle when equipped with PTO Prep and either the
AS69RC automatic six-speed or G-56 manual six-speed
transmissions, will allow for an aftermarket upfit with a
transmission driven PTO (power take off). The customer
will have the ability to operate the PTO in either a
“stationary” or “mobile” mode. The vehicles will be factory
set to the “stationary” mode. To select ’mobile mode’ You
will need to enter the commercial vehicle menu on the
instrument cluster display and select mobile PTO mode. Details of the PTO selection modes and further PTO
information is available at the Ram Truck Bodybuilders
web site.
rambodybuilder.com
AS69RC Six-Speed Automatic Transmission Only
The PTO drive gear (part of the AS69RC) operates at torque
converter turbine speed. The turbine speed will be less
than engine speed when the torque converter clutch is not
engaged and will be same as engine speed when the torque
converter clutch is engaged.
Stationary Mode
To operate the PTO in this mode the vehicle must meet the
following conditions:
•
Transmission in PARK position (vehicles equipped with
automatic transmission.)
• PTO switch has been activated.
• Parking brake applied (vehicles equipped with manual
transmission).
• Brake pedal must not be applied.
• Vehicle engine must be running.
• No vehicle, brake or clutch switch faults present.
154 STARTING AND OPERATING
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ENGINE COMPARTMENT — 6.7L DIESEL — SIX-SPEED 68RFE (2500/3500 Models)
1 — Battery7 — Washer Fluid Reservoir
2 — Engine Coolant Reservoir 8 — Power Steering Fluid Reservoir
3 — Automatic Transmission Dipstick 9 — Power Distribution Center
4 — Brake Fluid Reservoir 10 — Engine Oil Dipstick
5 — Battery 11 — Engine Oil Fill
6 — Aux Power Distribution Center 12 — Air Cleaner Filter
174 MAINTAINING YOUR VEHICLE
Page 177 of 228
ENGINE COMPARTMENT — 6.7L DIESEL — SIX-SPEED AS69RC HD (3500/CHASSIS CAB MODELS)
1 — Battery7 — Washer Fluid Reservoir
2 — Engine Coolant Reservoir 8 — Power Steering Fluid Reservoir
3 — Automatic Transmission Dipstick 9 — Power Distribution Center
4 — Brake Fluid Reservoir 10 — Engine Oil Dipstick
5 — Battery 11 — Engine Oil Fill
6 — Aux Power Distribution Center 12 — Air Cleaner Filter
7
MAINTAINING YOUR VEHICLE 175