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5.5.2 How to Apply Grease
[1] Greasing the ball screw and whirl-stop
(1) For RA4, remove slim hexagonal socket head bolts (M3 × 4) blocking the greasing port by
Allen wrench.
For RA6/RA7/RA8, remove the rubber cap blocking the greasing port.
(2) Grease the ball screws and the whirl-stop according to the following instructions.
[Ball Screw]
Adjust the rod to the home position.
By adjusting it to the home position, the greasing port and the port for ball screws will match
inside the main unit.
Connect the controller and adjust it to the home position.
Insert the tip of the spray grease in greasing port and inject it for one second.
One injection time should not exceed one second.
[Whirl-stop]
Adjust the rod position above 40mm.
Insert the tip of the spray grease in greasing port and inject it for one second.
One injection time should not exceed one second.
【RA4】
・スリムヘッド
六角穴付ボルトM3x4
・シールワッシャ M3用
【RA6/RA7/RA8】
ホールキャップ
(3) Clean up the rod (sliding surface) and apply the grease with hands.
(4) After greasing, move the rod full-stroke to apply the grease thoroughly.
[RA4]
• Slim head hex socket
head bolt M3 x 4
• Seal washer for M3
[RA6/RA7/RA8]
Hole cap