Sumitomo Cyclo 6000, Operation And Maintenance Manual

Page: 27 / 64

Exxon Unirex N2
Grease
Those units designated as maintenance free in Tables B-3 ~ B-6
do not require replenishment when supplied with standard greases.
Certain optional greases do require replenishment. Those units will
have a Zerk fitting either on the high speed endshield or near the
input shaft bearing housing.
Replenish grease to the reduction mechanism with 1/3 to 1/2 of the
quantity listed in Table B-9 or B-10 at the interval recommended
in Table B-8. Remove the drain plug from gearbox output section.
Replenish grease through the Zerk fitting. After inserting the rec-
ommended amount of grease run the unit for five or 10 minutes to
circulate the grease and purge any excess. Replace the drain plug
and return to service.
When the unit is disassembled for overhauling, refill with the grease
quantities indicated in Table B-9 or B-10. Or alternatively, 80% of
the space around the reduction mechanism and slow speed shaft
bearings of single reduction units, and 50% around the reduction
mechanism of both the first and second stage of double reduction
units.
Apply grease liberally to the central part (i.e., around the eccentric
bearings) of the mechanism. Apply grease to both the slow speed
and high speed shaft bearings as you would to ordinary bearings at
the time or re-assembly.
If excessive grease is added, agitation heating of the grease will
raise the operating temperature of the unit. Avoid excessive greas-
ing, but do not supply an insufficient amount of grease. When the
grease is insufficient, it will raise the unit’s operating temperature
due to breakdown of the lubrication films on the eccentric bearing.
In this case, if the operating temperature rises, supply grease im-
mediately.
[5] For non-standard grease units, refer to page Appendix D-2 for grease quantities
Ambient
Temperature [2]
Cyclo
®
Disc-Type
Cyclo
®
Planetary-Type
°F
°C
14 to 122 -10 to 50
Exxon Unirex N2
Grease
Shell Gadus S2 V220
0 Grease
[5]
Frame Size
6060
6065 6070
6075 6080
6085 6090
6095
6100
6105
610H
6110
6115
6120
6125
612H
Speed Reduction Mechanism
0.9
(25)
1.4
(40)
2.1
(60)
4.2
(120)
6.7
(190)
8.8
(250)
Slow Speed Shaft Bearing
0.5
(15)
0.9
(25)
1.1
(30)
1.1
(30)
1.6
(45)
1.9
(55)
[1] Avoid the use of grease other than shown in Table B-7. For Food-Grade Lubricants, see Appendix D-3.