DAF CF65, CF75, CF85 Series . Manual — part 1086

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1-5

General

CHASSIS

ΧΦ65/75/85 series

9

2

1.2 DRILLING IN THE CHASSIS

Note:

There are several stress zones in a chassis.

Working on the chassis without proper

knowledge (and not according to DAF

instructions) may cause irreversible damage to

the chassis. The repair shop or bodybuilder

would be held fully responsible for such work and

for any superstructure fitted.

If holes must be drilled in the chassis frame, note

the following points:

-

Drilling holes within a distance of 70 mm

(distance A) from a bend in the chassis is not

permitted.

-

It is on no account permitted to drill holes in

the tapered ends at the rear of a tractor

chassis.

-

Drilling holes in the flanges of the chassis

side members is not permitted.

-

The maximum diameter for drilled holes is

17 mm (dimension D in the drawing).

-

The distance between the holes, and

between the holes and the side member

flange, must be at least 3xD - with a

minimum of 30 mm (dimension B in the

drawing).

-

The distance between the lower stud hole

and the chassis underside should at least be

equal to distance C.

Distance C is > 70 mm for a tractor chassis.

Distance C is > 50 mm for all other chassis.

-

Deburr (at an angle of 45

) and paint the

drilled hole.

Wheelbase alteration
Any alteration to the wheelbase or changes to the

rear overhang should be done in accordance with

the latest DAF Trucks Bodybuilders' Guidelines.

Note:

When using the Bodybuilders' Guidelines, you

are advised to first read the "General" section.

A

A

A

A

A

A

A

A

C9 00 304

B

D

B

B

C

B

C9 00 291

CHASSIS

1-6

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General

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ΧΦ65/75/85 series

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1.3 REPLACING RIVETS BY BOLTS

Note:

A rivet may either be replaced by a flange bolt

M14 x 2, property class 8.8 (DIN 6921), or a

flange bolt M16 x 2, property class 10.9.

Removing the rivet
1.

Remove the rivet head. Make sure not to

damage the chassis during this procedure.

2.

Use a 10-mm drill to drill a hole in the rivet.

Remove the rivet from the chassis.

Fitting flange bolt M14
1.

Ream the rivet hole to fit 14 H7

(14 + .000 - 14 + .018 mm). Make sure not

to damage any lines running behind the

rivet hole. Deburr the edges.

2.

Repair the chassis paintwork. The new

paintwork should be no thicker than

50 microns.

3.

It is important that part of the bolt shank is not

threaded. Determine the length (L) of the

non-threaded shank part using the formula

below.

L = T1 + T3, in which T3 must be >

1

/

2

T2.

L = shank length without thread

T1 = part to be clamped

T2 = part to be clamped

4.

Tighten the flange bolt to the standard

tightening torque for bolts, property

class 8.8.

L

T3

T1

T2

C9 00 295

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General

CHASSIS

ΧΦ65/75/85 series

9

2

Fitting flange bolt M16
1.

Drill the rivet hole out to

 17 mm. Make sure

not to damage any lines running behind the

rivet hole. Deburr the edges.

2.

Repair the chassis paintwork. The

new paintwork should be no thicker than

50 microns.

3.

Install a flange bolt M16 x 2, property

class 10.9, with a non-threaded shank (A) of

6 mm.

4.

Tighten the flange bolt to the standard

tightening torque for bolts, property

class 10.9.

A

C9 00 296

CHASSIS

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General

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ΧΦ65/75/85 series

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