Navistar Electrical Systems CV
Integration Guide
Page 20 of 84
Revision Date: 9/12/2019
regeneration. If operating from outside the vehicle maintain a safe personal distance
away from the hot exhaust or you could be burned.
3.7. Variable PTO Operating Modes and Programming
3.7.1. Variable PTO - In-cab operation: Enable Conditions - [requires programming
with Navistar CV vehicle Service tool]
1.
With the engine running shift the transmission to P [PARK].
2.
Release the brake pedal and set the parking brake.
3.
Assure the cruise control is OFF and the hood is closed.
4.
Press and release the PTO In-cab switch. The PTO telltale will blink
rapidly until the PTO load becomes engaged. The telltale will then be
steady. The engine will advance to the PTO Standby speed.
5.
After PTO Standby speed is achieved, the Cruise Control Set - and Res
+ switches can be used to tap up and tap down the engine speed.
Notes:
1. Factory setting for the tap step is 100 rpm and the setting for the ramp
rate is 150 rpm/sec. The Navistar CV vehicle service tool can enable the
capability to change the default value for tap step via the Radio
Customization menu. The default values for both tap step and for ramp
rate can be changed with a Navistar CV vehicle service tool.]
2. The accelerator pedal is disabled and cannot be used to control PTO
engine speed.
3. [Stationary] Variable PTO operation can be ended by pressing In-Cab
PTO Switch, releasing the parking brake, depressing the brake pedal or
shifting the transmission out of P (Park). The PTO load relay will
bedisengaged and Engine speed will decline to idle speed.
3.7.2. Variable PTO - Remote Operation: Enable Conditions - [requires
programming with Navistar CV vehicle service tool and appropriate remote
switch panel provided by Truck Equipment Manufacture (TEM)]
1.
Shift the transmission to P [Park] and set the parking brake.
2.
Assure the Cruise Control is OFF, turn the key off and remove it.
3.
The operator may now exit and lock vehicle.
4.
From the Remote Switch Panel close and open the PTO Remote Arm
Switch.
5.
Within 5 seconds open and close the PTO Remote Engine
Start/Shutdown switch
6.
The vehicle horn will chirp 3 times, and then engine starting will
automatically be initiated. The PTO system will then elevate engine rpm
to PTO Standby speed and engage the PTO load relay.
