November 2015
Installation, Operation and Maintenance Manual
RGS011110-1 Rev. 0
13
Section 4: Maintenance
Maintenance
6.
Replace the piston O-ring and wiper ring as needed. Be sure to lubricate the new
O-ring and wiper ring with the correct Bettis approved lubricant if they are
replaced.
Figure 10
Piston O-ring
Wiper Ring
Piston
7.
Inspect the piston bolt for any corrosion or wear (pitting, cracking). If excessive
corrosion or wear is apparent, a new actuator or actuator components may
be necessary.
8.
Lubricate the internal surface of the cylinder with a light coat of the correct
Bettis approved lubricant and slide the cylinder back over the piston and into the
cylinder seal groove of the base plate, taking care not to pinch the piston O-ring.
Figure 11
