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Operation and Service Manual
Document No. I-0004 Rev. 6: 1996-06-06
March 27, 2003 - Page Six
VI ASSEMBLY
Drive Case Assembly
1) Install bushings (8) and drive rod guides (13).
Series 35 thru 70 Only
2A.
Install O-rings (9) on stem (3b). Assemble yoke (3) and stem in drive case (1). Install yoke pins
(3c) and snap rings (3d).
3A.
Make up drive rod assembly (4), (5), (6) and (7). Slide drive rod into position between yoke
arms.
4A.
Apply silicone sealant around edge of cover. Install cover (2) and cover screws (10). Replace
indicator (11).
Series 85 thru 185 and 127 thru 187 Only
2B.
Install yoke thrust bearing (3a) on yoke (3). Install O-rings (9) in drive case cover (2) and drive
case (1). Install yoke (3) in drive case (1).
3B.
Install drive rod (4), drive rollers (6), drive pin (5) and snap rings (7). Access to lower snap ring
is through breather plug (1a) hole.
4B.
Apply silicone sealant around rim of drive case cover (2) and yoke cover (11a), and inside the
bolt pattern to make it weather tight. Install drive case cover (2) and yoke cover (11a) and indica-
tor (11) assembly. Install cover screws (10), yoke cover screws (11b) and breather plug (1a).
Cylinder Assembly
Spring Return (SR) Models Only
Identify fail-safe action desired before reassembly. See "DISASSEMBLY NOTE 1" page 4. Even tightening of
stay rods on spring end is essential to keep cylinder aligned to housing and drive rod. If possible, reassem-
ble with cylinder vertical. If not, support the spring cylinder while gradually and evenly tightening stay rod
nuts in an alternating program.
All Models
Proceed with Steps 5 thru 9 and repeat as necessary to reassemble all cylinders. Take care to align ports to
match any existing tubing.
5) Install drive rod seal (14) and gasket (19) in cylinder plate (12). Install cylinder plate over drive rod (4).
Models 35S, 50S, 35SSR and 50SSR Only
Single acting cylinders do not require cylinder plate (12). Disregard Step 5.
®
E-Series Rotary and
Linear Operations
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