Unimog U500, Инструкция по монтажу

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Body and Implement Mounting Guidelines U500 North America General Information
August 2005 Page 25 of
294
Figure 1.2: Plugs at the engine control unit
Welding must not be carried out at the following components:
•
At the engine, transmission, axles, etc.
•
The chassis frame (for exceptions, see Section 10.9 Welding on
the frame, page 278 onwards)
•
Hydraulic fittings and components such as valves, cylinders, etc.
•
Cavities containing electric cables and other heat-sensitive lines.
Caution: In the case of welding operations at the vehicle,
the ground terminal of the welding unit must
never be connected to any of the above listed
components or their periphery. The welding cur-
rent may cause arcing at the bearings. This can
lead to destruction of the heat-treated surfaces
and consequently lead to premature failure.
1.11.6 Springs
Only use genuine MERCEDES-BENZ springs, which have been
approved for the relevant model. Modifications to springs and
shock absorbers are not permitted.
Spring pads are only permitted in coordination with, and with the
written approval of, the Unimog Implement Manager listed at the
beginning of this guideline.
The surface and corrosion protection of the springs must not be
damaged when they are fitted.
The protective measures described in Section 1.11.5 Welding op-
erations, page 24 must be applied during welding operations.
1.11.7 Painting procedures
In order to avoid color variations on painted bodies, information
regarding the primer coats and cover coats used in manufacturing
may be requested by the Unimog Implement Manager listed at the
beginning of this guideline.
Before painting, cover the following areas:
•
Bearing surfaces between the wheel and wheel hub
•
Bearing surfaces of the wheel nuts
•
All bearing surfaces of high tensile threaded connections
(e.g. engine mounting system, rear cross member, etc)
•
Coupling flanges of drive shafts, power take-off shafts and
power take-offs
•
Hydraulic cylinder piston rods (platform tipping cylinder,
cab tilting hydraulics, etc.)
•
All compressed air and hydraulic system control valves
and the interfaces of these components
•
Breather pipes in transmission, axles, etc.
•
Brake discs
•
Electrical connections