Instruction Manual
D104483X012
785C Actuator
May 2022
25
Figure 19.
785C Actuator Pneumatic Cylinder Components Disassembly Sequence
Replacing the Pneumatic Cylinder Seals
When the pneumatic cylinder is totally disassembled, all the seals can be replaced referencing figures 18, 34, 35, and
36. Pneumatic cylinder seals might include piston rod seal (key 2202), end flange seal (key 2204), piston sliding ring
(key 2207), piston outside seal (key 2208), scraper ring (key 2102), washer (key 2106), gasket (key 2107), O-ring
(key 2222) (only for with manual handpump).
1. Thoroughly clean the slots and housings of seals and sliding ring; lubricate with protective oil or with a thin film of
grease. Inspect all parts, including the piston rod (key 2350) and cylinder tube (key 2209), for damage and wear.
2. Put the seals and sliding ring accurately in place on the relevant component, being careful that the material does
not get pinched or damaged.