Jumpstarting And Towing; Emergency Procedures - freightliner WALK-IN VAN CHASSIS Operator's Manual

04/14/2011
1. Low Pressure Reservoir
2. Rupture Disc
Fig. 16.22, LPR Rupture Disc
LPR Relief Valve
The LPR relief valve opens when LPR internal pres-
sure reaches 90 psi (621 kPa) to prevent a danger-
ous buildup of high-pressure nitrogen gas.

Jumpstarting and Towing

Emergency Starting With Jumper
Cables
Using jumper cables to start a vehicle equipped with
a hydraulic hybrid system is identical to a non-
hydraulic vehicle, with one exception—the ignition
switch must be held in the START position for up to
five seconds before the engine will start. See
ter 13 for instructions when using jumper cables.
Towing Hookup
NOTICE
Remove the rear driveshaft before towing a ve-
hicle equipped with a hydraulic hybrid system.
Failure to do so will damage the hydraulic hybrid
components. Once the driveshaft has been re-
moved, do not attempt to start a vehicle
equipped with a hydraulic hybrid drive system.
Doing so will damage the hydraulic hybrid sys-
tem components.
1
2
f261423
Chap-
Hydraulic Hybrid
For towing instructions, see

Emergency Procedures

Manual Bleed-Down
To relieve the high-pressure fluid in the hydraulic hy-
brid system, the manual bleed-down valve must be
opened to divert fluid back to the LPR. It takes ap-
proximately 10 minutes for the system to fully dis-
charge. See Manual Bleed-Down Valve in this
chapter for instructions.
Fluid Spill
The hydraulic hybrid drive system uses synthetic hy-
draulic and transmission fluids. In the event of a fluid
spill, follow normal protocols in dealing with these
fluids.
Chapter 14.
16.20