Lukas P 660 SG - Manual (Page 24)

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2. If the spark plug is covered with soot, you must remove the soot with a spark plug cleaner
or a brush. If the spark plug is irreparably damaged (e.g. due to melt-off of the electrodes),
it must be replaced by a new one.
3. Set the gap between the electrodes to 0.6 to 0.7 mm.
4. Then reinstall the spark plug.
0.6 - 0.7 mm
11.3.1 Monocouplings
The monocouplings must be replaced if:
- exterior damage is present,
- lock does not function,
- in the coupled and/or decoupled state, hydraulic À uid continuously escapes.
WARNING / CAUTION / ATTENTION!
Couplings should not be repaired; they should be replaced with original LUKAS
parts!
Procedure:
1. Unscrew the coupling from the valve block.
2. Screw new coupling into the valve block with a torque of M
A
= 40 Nm.
11.3 Repairs
To perform the allowed repairs, observe the corresponding spare parts lists with the remarks
and drawings illustrated thereon.
Should ambiguities persist with respect to the repair, please consult your authorized LUKAS
dealer or LUKAS customer service.
11.3.2 Changing decals
All damaged and/or illegible decals (safety instructions, name plates, etc.) must be replaced.
Procedure:
1. Remove damaged and/or illegible decals.
2. Clean surfaces with acetone or industrial alcohol.
3. Adhere new decals.
Make sure to adhere the decals in the correct positions. If this is no longer known, you should
consult your authorized LUKAS dealer or contact LUKAS directly.