Electrical, PTO, Hydraulic Pump, Parameter Logic, Programming and more
Disclaimer: Persons who perform further manufacturing operations on (modify) a Volvo vehicle are responsible for the vehicle’s continued and/or subsequent compliance with applicable regulations, must ensure that the vehicle as modified by them is safe to operate, and assume any liability related thereto. Volvo Trucks NA, Inc. cannot anticipate all of the possible modifications to a Volvo vehicle, know the ultimate configuration of every completed vehicle, and be aware of the intended function, operation and/or use of a completed vehicle. Regardless of assistance provided to subsequent manufacturers (others), Volvo Trucks NA, Inc. is not responsible for modifications made to a Volvo vehicle by others, nor the safe assembly and/or operation of any equipment installed on a Volvo vehicle by them, nor for injury or damage caused by such modification and/or equipment.
Latest Manual Updates
Check regularly for updates to the Volvo Body Builder Manual to learn of new features and updates.
0. Body Builder General Information
Certification Label, Towing Procedure, Weight Distribution, Chassis Diagrams, Chassis Configurations, Fuel Tank Positioning
1. Oil + Filters
Approved Oils, Engine Oil Type, Transmission, Lubrication, Biodiesel Fuel, Coolant Requirements
2. Engine
Engine Overview, Exhaust Aftertreatment System, Heated Dump Bodies, In-Transit Heat Cooling System, Fuel Line replacement
3. Electrical / VECU5 / Model Year 2022 / VIN’s 10th digit = N
VECU5 / Routing and Clipping Guidelines, Body Builder Connectors, Remote Start n Stop. Adding Aux Pedal, Aux Switches, Diagnostic Connectors, Multiplexing Body Builder J1939 CAN
3. Electrical / VECU4 / pre-Model Year 2022
Legacy VECU4 / Routing and Clipping Guidelines, Body Builder Connectors, Remote Start n Stop. Adding Aux Pedal, Aux Switches, Diagnostic Connectors, Multiplexing Body Builder J1939 CAN
4. Transmission
I-Shift Transmission, Transmission Oil Cooler, Transmission Gear Ratios
5. Brakes
Air lines / Fittings, Air Brake System Schematics, Brake System Options
6. Suspension & Steering
Front Axles, Rear Suspension, Air Suspension Height, Adjustment
7. Frame
Frame Specifications, Bolt Hole Patterns, Frame Rail Cutouts, Subframes, Welding, Frame Length, Adjustment
8. Cab / Body
Instrument Panel, Instrument Panel Layout, Gauges, Switches
9. VECU5 Legacy / PTO & Pumps / pre-Model Year 2022
VECU5, Overview, Transmission-Mounted PTO, Rear-Mounted Engine PTO, Front-Mounted Engine PTO , Hydraulic Pumps, PTO Programming, Parameter Programming
9. VECU4 Legacy / PTO & Pumps / pre-Model Year 2022
VECU4 Legacy, Overview, Transmission-Mounted PTO, Rear-Mounted Engine PTO, Front-Mounted Engine PTO , Hydraulic Pumps, PTO Programming, Parameter Programming
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Frequently Asked Questions
What is the minimum RPM I should operate my PTO, so that my vehicle will perform Regeneration during PTO mode?
Regeneration in PTO Mode - when a vehicle is being operated in PTO mode and a diesel particulate filter (DPF) regeneration is commanded, the engine must be run at a speed above the minimum speeds listed in the tables in Body Builder Manual, Section 9, Table of Contents / Regeneration in PTO Mode. The minimum speed setting can be affected by ambient temperature and/or altitude.
Can the I-Shift change gears while transmission mounted PTO is active?
When a I-Shift mounted PTO is engaged, it is only possible to move the truck in one gear (1st, 2nd, or 3rd) – the transmission will not shift gears when the PTO is active. The transmission will not disengage the PTO once it is turned on and recognized by the VECU or TECU via the factory-installed PTO switch.
On Volvo I-Shift, with PTO engaged while in neutral, and then selecting Drive the PTO stops turning. Why?
Remember that the I-Shift is an automated manual transmission with a clutch. With the PTO engaged while in neutral, when selecting Drive, the clutch is released, then the transmission shifts into gear. When the driver takes his foot off the brake pedal and presses the throttle pedal the clutch will reengage and the PTO will start to turn again. The transmission will not shift gears and driver is limited to about 6 MPH.