RDG603A31- Issue 4
Page 51 of 88
Periodically squirt a lubricant into the key switch slot when the key has been
removed (see Section 8
– Service Schedule). A lubricant such as WD40 – with silicon,
would be suitable. Other lubricants are available. Then with the battery master switch
turned off, operate the key switch a couple of times. This will ensure the lubricant
works into the mechanism.