Gear units – Operating and Assembly Instructions
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3.7 Fitting push-on gear units
When the screw fastenings of the torque arm are removed, the gear unit will rotate around the
output shaft
• Secure the screw fastening against loosening, e.g. with Loctite 242 or a second nut.
NOTICE!
The gear unit may be damaged by axial forces.
Bearings, gear wheels, shafts and housings may be damaged by incorrect assembly.
• Use suitable pulling devices.
• Do not strike the gear unit with a hammer.
Assembly and subsequent dismantling is facilitated by applying an anti-corrosive lubricant to the shaft
before fitting (e.g. NORD Anti-Corrosion Part No. 089 00099). Excess grease or anti-corrosion agent
may escape after assembly and may drip off. Thoroughly clean these points on the output shaft after a
running-in time of approx. 24 hours. This escape of grease is not due to a leak in the gear unit.
Figure 7: Applying lubricant to the shaft and the hub
Information
The gear unit can be fitted to shafts with and without a shoulder using the fastening element
(Option
B). Tighten the screw of the fastening element with the appropriate torque (please see
chapter 7.4 "Screw tightening torques")For gear units with option H66, the closing cap fitted at the
factory must be removed before assembly.
For push-on gear units with option H66 and fastening element (Option B) the pressed-in closing cap
must be pushed out before installing the gear unit. The pressed-in closing cap may be destroyed
during dismantling. As standard, a 2nd closing cap is supplied as a loose spare part. After installing
the gear unit, fit the new closing cap as described in Section 3.9 "Fitting the covers".
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