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Mounting<br />
General<br />
1. The gear should be placed on a flat and solid<br />
foundation.<br />
2. Sprocket, pulley or coupling on shaft can not be<br />
mounted with force. This will damage the gear.<br />
3. To avoid increasing load on shafts and bearings, the<br />
gear and the driven machine should be carefully<br />
aligned, even if an elastic coupling is used.<br />
Hollow shaft gears<br />
1. The gear is normally mounted on a shaft with tolerance<br />
js6. The hollow shaft have tolerance H7.<br />
Grease the shaft with Molykote BR2 or equivalent<br />
before the gear is mounted. The gear shall not be<br />
mounted with force.<br />
The gear shall be locked against axiel movement. Set<br />
screws in hollow shaft can be used for BS88 and 112.<br />
4. If sprockets are used on the output shaft the preferable<br />
direction of pull should be such that the gear housing<br />
willbe pressed towards the foundation.<br />
5. When situated outdoors or working under adverse<br />
conditions as heat, dust or damp, the gear must be<br />
provided with sufficient protection, but the cooling air<br />
circulation must not be unduly restricted.<br />
Lubrication<br />
Before delivery BS40-112 are filled with synthetic oil -<br />
Mobil SHC 634 and BS35 with synthetic grease - Mobil<br />
SHC 007. This type of lubrication is extra suitable for<br />
worm gears.<br />
At normal condition the oil/grease never needs to be<br />
changed.<br />
Ambient temperature -30°C - +30°C.<br />
Maintenance<br />
1. Benzler worm gears are lubricated for life with synthetic<br />
oil/grease and are therefore maintenance free.<br />
3. The worm gears shall under no circumstances be<br />
entirely filled with oil or grease.<br />
2. Check that there are no leakage.<br />
Running in<br />
1.The gear should be run under low load conditions<br />
during the first 10-30 hours. Then the load should<br />
gradually be increased to full load.<br />
2.The length of the running-in period depends on the size<br />
of the gear and the actual working conditions.<br />
3. When increasing the load the temperature of the gear<br />
can exceed the ambient temperature by 60-70° C. Oiland<br />
geartemperatures of 95-100° C are harmless and<br />
have no influence on the function af the gear. When<br />
the temperature exceeds 100° C special sealrings must<br />
be used.<br />
4. Gears which are not used for a long period should be<br />
run for short periods, approximately every third month.<br />
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