Alcoa 200 - Cylinder Disassembly and Assembly

200 Series Tooling Alcoa Fastening Systems
35
CYLINDER DISASSEMBLY
The cylinder assembly contains the air cylinder
and the shift valve components. The handle
assembly must be removed from the cylinder
assembly when disassembling the shift valve
components. Disassemble the cylinder assembly
as follows:
1. Remove handle assembly (1-4) from cylinder
assembly (1-8) per instructions in Major Sub-
assemblies Section. Adjusting screw (4-30),
spring (4-29) and plunger (4-28) will be
removed at this time.
2. Screw in sleeve (4-27) few turns, using
Wrench 100878 to dislodge cap (4-5).
Remove cap.
3. Carefully remove hydraulic fluid diaphragm
(4-4).
4. Remove sleeve (4-27) with Wrench 100878,
and push remaining valve parts out of bottom
of cylinder using brass rod.
(1)
5. Remove bleed plug (4-2).
6. Remove and discard all O-rings and quad
rings. Replace back-up rings and diaphragm
if damaged.
CYLINDER ASSEMBLY
Before assembling cylinder assembly, clean all
components thoroughly with mineral spirits and
lubricate lightly with LUBRIPLATE NO. 130AA.
Inspect all parts for damage and replace parts as
required.
1. Dip new O-rings and quad rings furnished in
Service Parts Kit 42-236 in hydraulic fluid or
lubricate with LUBRIPLATE NO. 130AA.
2. Assemble O-rings, quad rings and back-up
rings as follows:
a. O-ring (4-3) to bleed plug (4-2).
b. O-ring (4-6) to cap (4-5).
c. O-ring (4-9) and two back-up rings (4-8)
to upper sleeve (4-7).
d. O-ring (4-12) and two back-up rings
(4-11) to plunger (4-10).
e. O-ring (4-14) and back-up ring (4-15) to
seat (4-13).
f. O-ring (4-18) and two back-up rings
(4-17) to lower sleeve (4-16).
g. Quad ring (4-23) and back-up ring (4-24)
to I.D. and back-up ring (4-26) to O.D. of
gland (4-22). Do not assemble O-ring
(4-25) at this time.
h. O-ring (4-31) to adjusting screw (4-30).
3. Install cap (4-5) from top side of cylinder.
(1) If quad ring (4-23) or O-ring (4-25) require
replacement, a soft brass rod with a tapered end
can be used to remove gland (4-22) and spacer
(4-21) without removing cylinder assembly from
handle assembly. The brass rod also facilitates
assembly of gland and spacer.
C
C
YLINDER
YLINDER
D
D
ISASSEMBLY
ISASSEMBLY
AND
AND
A
A
SSEMBLY
SSEMBLY