IAI America RCA2-SD4N - Manual (Page 90)

12. Maintenance and Inspection
82
12.4 Inspection of Interior
When inspecting the interior, check the items specified below.
Main unit Loose actuator mounting bolts, other loose items
Lead screw Lubrication, buildup
Spiral cover
To check the Lead screw or ball screw, turn off the power, extend the rod, and pull the narrower
end of the spiral cover toward the wider end (in the direction of the arrow) to expose the screw
shaft and inspect the shaft visually.
If the lead is too small and the rod does not move, insert a slotted screwdriver, etc., into the cutout
groove provided in the shaft on the rear side and turn. [Refer to 10.2, “How to Move Rod by Hand.”]
Visually check the lubrication condition of the Lead screw or ball screw.
Even when the grease is brown, the screw is lubricated property as long as the traveling surface
looks wet and shining. If the grease is mixed with dust and dirty or has no shiny appearance, or if
the grease has lost its efficacy due to prolonged use, clean the applicable area and then replenish
grease.