Rockwell Automation 1503 OEM Starter Frame Components Installation Manual - Manual (Page 50)

5-2 Maintenance
1503-IN050E-EN-P – June 2013
Clevis Pins and
Cotter Pins
Isolation Switch
Operating Lever
Interlock Lever
Lubrication Points
(Only at replacement)
Threaded
Connecting Rod
Contactor
Interlock Rod
Figure 5.1 – Isolation Switch Handle Mechanism Lubrication Points
4) If it is necessary to replace the isolation switch operating lever or the
interlock lever, apply Dow Corning 55 O-ring lubricant (or equivalent)
to the pivot points before installing the new components (see Figure
5.1).
5) Inspect the mounting hardware on the isolation switch operating lever
and contactor interlock rod (see Figure 5.1). Tighten any loose hardware.
6) Inspect the isolation switch blades and the incoming line stabs (see
Figure 3.9). The mating surfaces must be clean and well lubricated.
7) Remove any dirt and dried grease.
Do not scrape or fi le the parts. This may remove the plat-
ing and expose the underlying copper to corrosion.
8) Lubricate the isolation switch blades and the isolation switch blade pivot
points with Nyogel 759G - part number T9327-105 (see Figure 5.2).
Lubricate the isolation switch blades a minimum of once
per year to avoid excessive wear to the components and
to prevent the isolation switch blades from overheating.
Isolation Switch Mechanism
Inspection and Lubrication
(cont.)
I M P O R T A N T I M P O R T A N T
I M P O R T A N T I M P O R T A N T