Kitz FBS - Page 21

Document No.:KE-4011-03 Page: 18/27
(8) Rotate the shaft and move another piston toward the end cover opening. Loosen a
hexagon headed bolt and remove the second piston from the housing. Also remove a gear
rack (Fig.10).
Fig.10
(9) Remove a snap ring (with snap ring pliers), a thrust washer and a thrust bearing from the
shaft (Fig.11).
Fig.11
(10) Remove the shaft slowly through the bottom of the housing, holding a pinion gear and a
bearing by hand. Another bearing is removed together with the shaft (Fig.12) to complete
disassembly of the actuator.
Fig.12
FBS spring return actuator is provided with a spring cartridge, in place of an end cover. Don’t
disassemble the cartridge unit internally holding a compressed heavy-duty spring.
Bolt <13A>
Gear rack <103>
O-ring <45D>
Bearing <67A>
O
-
ring <45B>
Housing <1>
Bea
ring <67B>
Shaft <3>
O
-
ring <45C>
Snap ring <48A>
Thrust washer <47A>
Thrust bearing <47B>
Pinion <142>