ATN PIAF 1000R, Safety And Maintenance Manual

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SAFETY AND MAINTENANCE MANUAL
1NO0024UK-09
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LUBRICATION FREQUENCY
Lubrication frequency varies depending on the use and the environment. Lubrication is advisable
every 150 hours when there are no specific stresses. This frequency should be reduced to 50
hours if the application conditions are hostile or if the atmosphere is dusty or damp.
Before and after a long period of shutdown, lubrication is needed. During periods of extended
shutdown, re-lubricate in cycle every six months.
QUANTITY OF GREASE
On rolling bearing raceway:
In every case, a small roll of new grease must appear on the lips of the protective seal.
On toothing:
By spraying or brush, the grease must entirely cover the edges of the pinion and the ring gear.
SUPERVISION OF PROTECTION
Visual examination makes it possible to ensure the integrity of the protective seals:
- absence of excessive tension and tears
- correct positioning
- wear rate of the floating lip
If necessary, replace the seal. After re-greasing, evacuate the used grease rejects and check the
absence of pollution like sand, coal, metal particles, etc...
SUPERVISION OF FASTENING
The fastening bolting of the slewing rings works essentially in fatigue mode, it is therefore
particularly important to check that the level of preload required in the bolts is always maintained
(H M 16X90 8.8 ZI screws).
Tightening of the fastening bolting must be carried out after the first two to four months of use, then
at a yearly systematic visit.
If fastening bolts are found to be loosened, an appraisal is essential. Above all it is not sufficient to
tighten these bolts up again, it is important to remove the bolts completely for brushing, then to
tighten up again to the appropriate tightening torque with strong locktight. Certain rules impose
replacing fixation screws and bolts every 7 years or every 14000 working hours.
SLEWING SUPERVISION
At the time of the cleaning prior to re-lubrication of the toothing:
- take care to check the absence of any foreign body at the root of the teeth, ring gear and pinion.
- check the regularity of the bearing length of the pinion over the entire width of the toothing of the
ring gear and correct the alignment of the spindles if necessary.
1.2. MASTS
1.2.1 FIXED CAGE AND ASSOCIATED CYLINDER
The machine is made up of a turret (referred to as fixed cage) and three mobile cages. The whole
is a telescopic mast.
The mast cylinder is fixed on the turret and on the first mobile cage. The link between the two
others is made by lifting chains.