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Maxi-Dry
®
Coupler
1. Remove coupler assembly from line.
2. Close coupler.
3. Remove cotter Pin (7) and Pin (6) from Stem (2).
Note: It may not be possible to remove the Pin
completely from the Stem. When this happens, remove
Pin enough so that the Linkage (4) can be removed from
the Stem.
4. Remove Handle Nut (13), Lockwasher (14), and Handle
(12), from Stem.
5. Unscrew Bushing (3) from Body (1) and remove from
Stem.
6. Remove Stem (2) along with Stem O-Ring (10) and
O-Ring Retainer. (8)
7. Using a soft object, such as a piece of wood or plastic,
push Poppet (5) along with the LInkage (4) out of the
coupler end of the Body.
8. Remove Cotter Pin (7), Poppet Pin (6), and Linkage (4),
from the Poppet. Note: Relationship of the LInkage to
the Poppet.
9. Remove Coupler Gasket (22) from Body.
10. Remove Poppet O-Ring (9) from Body. Note: It is
almost impossible to remove the Poppet O-Ring without
destroying it.
11. Remove Stem O-Ring (10) from Stem.
12. Remove O-Ring Retainer (8) from Stem.
13. Remove Bushing O-Ring (11) from Bushing.
14. Inspect Cam Arms (20) for excessive wear and replace
if worn. Do not remove Cam Pins (21) unless new pins
are to be installed.
15. Clean all parts and inspect for damage and/or excessive
wear. If damage or excessive wear is encountered,
the defective parts should be replaced with new
replacements.
DisasseMbly instruCtions
reasseMbly instruCtions
Warning: before DisasseMbly of these
CoMponents, all line pressure Must be relieveD.
Coupler
1. Make sure all parts are clean before reassembling
2. Lightly lubricate the new Poppet O-ring (9) and install
in the Body (1)
NOTE: Teflon
®
Encapsulated O-Rings may be easier to
install if they are first heated in hot water.
3. Install the Link Assembly (4) onto the Poppet (5) with
one Poppet Pin (6) and Cotter Pin (7)
NOTE: The long arm of the Link is installed on the
Poppet. Orientation is such that the short arm of the
Link is extending upward when looking into the face
of the Poppet and the PT logo is at the nine o’clock
position.
4. Install Poppet/Link subassembly into Body. The PT
logo on the face of the Poppet should be in line with the
threaded Stem opening. Gently push the Poppet into
the Body. On 3” assemblies the PT logo is 90° from the
Stem opening.
5. Place a Poppet Pin (6) in the pin holes in the Stem (2).
Disregard for 3” assemblies.
6. Install the O-Ring Retainer (8) on the Stem.
NOTE: Large Diameter first. Not used on 3” Assembly
7. Lightly lubricate a new Stem O-Ring (10), and install on
Stem.
8. Install Stem in Body making sure the Poppet Linkage
(4) is below the Stem when viwing into the threaded end
of the Body and the threaded Stem opening is at three
o’clock.
9. Lightly lubricate the Bushing O-ring (11) and install on
the Bushing (3).
10. Place the Bushing (3) over the Stem and screw into the
Body until tight.
11. Turn the Stem to align the holes so that the linkage can
be attached. On 3” assemblies make sure the Stem (2)
goes throught the Stem Cam (18). Rotate the Stem and
Stem Cam clockwise until it stops.
12. Install the Poppet Pin (6) through the Linkage and
secure with a Cotter Pin (7). Rotate the Stem and Stem
Cam clockwise until it stops.
13. Install the Handle (12, Nut (13), and Lockwasher (14),
making sure proper orientation is maintained.
NOTE: When the coupler is shut, the Handle should
protrude over the coupler end of the Body. The stop tab
on the Handle should be resting between the Body tab
and the Handle Latch (15).
14. Install new Coupler Gasket (22) in Body recess.
Installation Instructions:
Coat all threads with Anti-Seize lubricant to prevent galling, before connecting Maxi-Dry
®
to
any other threaded pipe or fitting.
