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, Biodiesel Fuel, Exhaust Aftertreatment System, Heated Dump Bodies, In-Transit Heat Cooling System, Fuel Line replacement

3. Electrical / Electronics

VECU4 / VECU5, Routing and Clipping, Body Builder Preparation Packages, Connector Locations & Information, ECU Functions & Parameters, Remote Throttle, Aux Switches, Remote Start n Stop

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. PTO & Pumps

VECU4 / VECU5, Overview, Transmission-mounted PTO, Rear-mounted Engine PTO, Front-mounted Engine PTO, Hydraulic Pumps, PTO Programming, Parameter Programming

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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.

Our customer chassis has an I-Shift and has a need for moving PTO operation. What PTO is recommended?

I-Shift transmission mounted PTO’s are primarily used for stand-still operation, with the gearbox in neutral. However it is possible to engage PTO in vehicle speeds up to 6 MPH. If the vehicle is to have a moving PTO operation faster than 6 MPH, an I-Shift with a REPTO or FEPTO may be the better choice.