IAI America CT4 - Manual (Page 35)

4. Maintenance Inspection
29
4.4 Internal Inspection
Turn OFF the power, remove the screw cover and have a visual inspection.
Include the items below in the internal check.
Main Body
Looseness of attachment
screws
Ball screw
guide
Condition and dirt of
lubricant
In the inspection, check if dust is involved inside and the condition of the lubricant.
Even if the grease looks brown, it will be fine as long as the sliding area seems wet and shiny.
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 the grease.
Described below is how to check inside.
[X1-axis, X2-axis, Y-axis]
1) Detach the four screws holding the screw cover (at the points where circled) and remove the
screw cover.
Tool to use: Hex Wrench 2.5mm-sized
2) Check inside.
3) After the work is finished, attach the screw cover and tighten the screws.
Tightening Torque:88.7N㨯cm
X1-axis
Screw Cover
Y-axis
X2-axis