Description

DAF XF105, LF, CF 2010 Technical Manual

If you’re planning to cut, drill, weld, or mount anything on a DAF XF105, LF, CF 2010 Technical Manual chassis, you need the factory guidelines. I’ve seen too many frame cracks and electrical fires because somebody guessed at bolt placement or tapped into the wrong wire. This manual stops that nonsense before it starts. Published by DAF in 2010, it runs 428 pages and covers every system from frame rails to tail-lift wiring. No aftermarket copy – this is the actual document the factory sends to body builders.

Drilling and Welding on the Chassis: What the Manual Says

Section 2.2 (Drilling of holes) and 2.3 (Welding on the chassis) are the first places I’d mark with a highlighter. Don’t even think about drilling a ½” hole into a frame flange without checking the location limits DAF specifies. The welding instructions are even stricter – preheat requirements, weld types, and stress-relief steps are all laid out. Skip those, and you’ll own a cracked frame. Page 5 shows the full Table of Contents so you can see exactly where each spec lives.

Electrical System Coverage for LF, CF, and XF105

Three separate sections (9, 10, and 11) cover the LF series, CF series, and XF105 electrical systems. That means you get model-specific connector locations, fuse sizes, and wire cross-sections. Section 7.3 mentions the circuit diagram, but the real detail is in the series-specific chapters. Need to hook up a tail lift? Look at 7.17 (Taillift preparation) and the LF series trailer connection points. For the XF105, section 11.1 gives the cab switch and connector locations. Pair this with the DAF XF105 Electrical system Wiring Diagram for the full picture.

Does This Manual Cover PTO Installation?

Yes – Chapter 6 is dedicated to PTO and other energy consumers. It covers clutch-independent and clutch-dependent PTOs, transfer boxes, and compressed air feeds. The PTO specification table (6.3) lists what each engine/transmission combo can handle. If you’re installing a hydraulic pump or a tipper body, section 6.11 (Air feed, tipper preparation) is mandatory reading. The manual also references the truck’s Manual Transmission to determine which PTO mount is compatible. For a broader view of manual transmissions, check the Wikipedia article on the topic.

11 Major Sections in This Manual

Here’s what you’ll find inside:
– General (purpose, vehicle specs, weight distribution)
– Chassis Information (leveling, drilling, welding, wheelbase mods)
– General Information on Superstructures (sub-frames, BAM attachment methods)
– Superstructures (fixed body, tail lift, cranes, tippers, tankers, concrete mixers)
– Cab Information (modifications, maximum added weight, roof spoiler setting)
– PTO and Other Energy Consumers (PTO specs, compressed air, heating)
– Electrical System General (safety, circuit diagram, batteries, alternator)
– Data Communication Systems (CAN J1939, CANopen, ISO 11992)
– Electrical System LF Series (switch locations, connections, power supply)
– Electrical System CF Series (similar detail for CF75/85)
– Electrical System XF Series (cab switches, connectors)
– Application Connector (Code) Number List, Part Numbers, Reaction Form.

Each section has subsections you can jump to without reading the whole book. That’s the beauty of an OEM document – it’s written for the guy on the shop floor, not a professor.

Weight Distribution and Chassis Modification: Factory Specs

Section 1.6 (Weight distribution) gives the allowable loads per axle and how body weight shifts that distribution. If you’re adding a crane or a fifth wheel, you need to check 4.3 (Vehicle loading cranes) and 4.9 (Fifth wheel). The manual tells you exactly where to drill the mounting holes and what bolt grade to use. Don’t rely on internet forums for this – one wrong hole and you’ve weakened the frame. The DAF LF CF XF105 2011 Bodybuilder Guidelines includes updates, but the 2010 edition is still the baseline for Euro 3-5 chassis.

Why This Is Not a Generic Aftermarket Guide

Aftermarket manuals often reprint the same generic instructions for all trucks. This one came from DAF’s engineering department. It includes statutory requirements (1.4), EC-approved rear underrun protection (2.16), and EMC compatibility specs (7.8). The torque values for chassis bolts are in Nm – you’ll need to convert to ft-lb for your torque wrench, but at least they’re the real numbers. When you’re working on a manual transmission, you can cross-reference the driveline specs in the PTO chapter. The Manual Transmission section in a general Wikipedia article won’t give you DAF-specific mounts; this manual does.

For a complete electrical wiring reference, the DAF XF CF Wiring Diagram complements this bodybuilder manual. Together they cover every connector and circuit on the truck.

Frequently Asked Questions

Does this manual cover engine specifications or internal repairs?

No, it focuses on body and chassis modifications only.

What kind of torque values are provided for attaching superstructures?

Section 2.6 (Attachment of components to the chassis) lists bolt grades, tightening torques in Nm, and the number of bolts required per bracket. Section 3.2 (BAM’s – body attachment methods) gives specific torque for each attachment point depending on the chassis model (LF45, LF55, CF65, CF, XF105). For example, the FA CF and XF mounting points (3.10) have different torque specs than the FAG CF (3.12) due to frame thickness differences. The manual also warns against reusing bolts that have been torqued once – a detail most aftermarket guides skip. If you’re working on an XF105 with a heavy tipper body, you’ll need the values from 4.4 (Tipper bodies) as well.

You need factory data when you’re cutting into a chassis or wiring a $10,000 tail lift. This 428-page PDF is the real deal – no shortcuts, no generic drawings. Access the Factory Manual and keep it on the tablet next to your toolbox. It’s the difference between a job that passes inspection and one that leaves your customer stranded.