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Parts Sheet #8100-4117_05_MXP63Pps
Parts Sheet #8100-4117_05_MXP63Pps
MXP63P
Instructions – 3
threads on the Piston align with the holes in the Piston Bracket and
secure using Screws (19).
Verify surface of Piston is behind the surface of the Piston Bracket in
both places as shown in diagram.
If not aligned properly the Seal Band (4) life may be
shortened.
Install new lubricated U-Cups (8) (seal lips facing out),
and Cushion Seals (9) (small end facing out).
3. INSTALL SEALING BAND
CAUTION:
Metal edges of Sealing Band are sharp. Exercise caution to
avoid injury to yourself while installing. Handle Sealing Band with care.
Do not damage edges while handling.
Insert Sealing Band (4) into Cylinder Tube (1) by laying the Band
out along the length of the actuator and passing it sideways
through the slot in Tube. With rubber side facing up (ground
side facing down), position the Seal Band so there is enough
sticking out the end of the Tube as long as a Piston Assembly.
4. INSTALL PISTON ASSEMBLY
Place generous amounts of grease around bore of Tube (1) and on exte-
rior surfaces of both Wear Rings (14) on Pistons (10), U-Cups (8) and
Band Ramps (6).
Create a Seal Band Guide Tool by using the 12-inch length of Seal Band
included with repair kit (without rubber), or cut a short length of the old
Seal Band. (Remove the rubber along the entire length of the Seal Band
Guide Tool if needed.) At one inch from one end of the Seal Band Guide
Tool, bend slightly upward. The bend helps to guide the Seal Band
Guide Tool through the Piston Assembly. Determine which end of the
Piston Assembly is going to be inserted into the Tube (1) first. Insert
the bent end of the Seal Band Guide Tool into the opposite end of the
Piston Assembly. Push the Tool through the opening between the Band
Ramp (8) and Wear Ring (14) on the Piston Bracket (5) and stopping
when the Tool exits the end of the Piston Assembly.
Place the Seal Band (4) on top of the Seal Band Guide Tool. Insert the
Piston Assembly into the Tube (1) until both U-Cups are captured by the
bore in the Tube. Do not force the Piston Bracket into the Tube and if
the Piston Assembly experiences resistance, use a small screwdriver to
press in the ends of the Band Ramps (6) where entering the Tube. Allow
the Seal Band (4) to pass through the Piston Assembly. Once the Seal
Band is though the Piston Assembly, pull the Seal Band Guide Tool out
of the Piston Assembly. Continue inserting the Piston Assembly into the
Tube until the 2nd U-Cup is inserted into the bore of the Tube.
Slide new Wipers (12) into the groove on the Piston Bracket (5) until flush
with end. Manually move the Piston Assembly the length of the Tube
until the end of the leading U-Cup extends out of the Tube. Wipe off any
excess grease from the end of the Piston Assembly and the Tube. Move
the Piston Assembly so the U-Cup back into the Tube bore.
Note: If Tube and Piston Assembly were greased properly, excess grease
should be present as the Piston exits the end of the Tube. If there is no
excess grease present, remove the Piston Assembly and re-grease the
Tube, then re-install the Piston Assembly.
5. INSTALL HEADS
CAUTION: Twisting the Head (16) during installation may cut the
O-Ring (17) resulting in excessive leakage during operation.
Install new lubricated O-Ring (17) onto each Head (16). Position Piston
Assembly near the end of the Tube in which the Head is being installed.
Position or trim the Seal Band (4) so 1.25" (31.8mm) is protruding from
the end of the Tube (1). Use a razor blade to cut the rubber along the
end of the Tube then remove all rubber outside the end of the Tube.
Keep the rubber on the Seal Band aligned with the end of the Head (16).
Install Head into Tube using a slight up and down rocking motion (not
side-to-side or twisting) until the Head is flush with the end of the Tube.
Secure Head to Tube by installing Head Screws (15) applying a torque of
190 in-lbs (21.47 N-m). Verify rubber on Seal Band (4) is still aligned
with end of Tube. If not, use needle nose pliers to pull on Seal Band
until aligned. Place Band Wedge (23) with point of Set Screw down
into slot of Head and on top of Seal Band. Push Band Wedge so it is
against the end of the Tube. Secure Band Wedge with Band Clamp (20),
FHCS (22) and Set Screws (21). Make sure hole in Band Clamp aligns
with the Cushion Needle (25) in Head.
Move Piston Assembly to other end of the Tube and repeat the steps
above to install the other head. Trim Seal Band with tin snips if needed
to achieve 1.25" (31.8mm) from end of Tube. While pulling Seal Band
tightly with needle nose pliers, use razor to cut rubber at the end of
the Tube. Remove rubber from the end of the Seal Band to the cut
just made. Install the Head (16) to the Tube and secure with the Head
Screws (15). Use needle nose pliers to pull on the Seal Band remov-
ing any slack and aligning the rubber on Seal Band with the end of the
Tube. If rubber is past end of Tube, trim excess rubber. If rubber is not
up to end of Tube, pull on Seal Band with needle nose pliers to remove
slack. Secure Seal Band with Band Clamp, FHCS and Set Screws.
Once both ends of the Seal Band are secured, manually move the Piston
Assembly the entire length of the Tube two times to see if there is any
slack or issues with the Seal Band.
6. INSTALL AND SECURE DUST BAND
Position the Piston Assembly at mid-stroke of the cylinder. Slide Dust
Band (3) through the upper slot of Piston Bracket (5) and lay on top of
the cylinder tube slot. Position the Dust Band 1.25" (31.8mm) from
each end of Tube. Install End Caps (7) using SHCS (11) into ends of
Piston Bracket (5). Loosen Set Screws (21) and FHCS (22) on both ends
of the Tube. Slide Dust Band (3) between Band Wedge (23) and Band
Clamps (20). Tighten the FHCS then the Set Screws to secure the Dust
Band. Move the Piston Assembly to each end of the Tube to verify the
Dust Band is positioned properly.
7. CHECK ASSEMBLY
Manually push the Piston Assembly back and forth along the entire
length of stroke to make certain that the cylinder is properly assembled
before reconnecting to the pneumatic supply. The Piston Assembly
should move consistently with minimal friction along the stroke. The
Dust Band should not kink at end of stroke. If it does, loosen Set
Screws (21) until kinking is eliminated and retighten.
8. INSTALL BEARING BLOCKS AND BEARING RAIL (OPTIONAL)
If you completed Step 3 in the disassembly procedure place the new
Bearing Rail (30a) on top of Nut Rail with the reference mark located on
the bottom of the Rail towards the Piston Bracket (5). Next start all the
Screws (29) that hold the Rail, but do not tighten. Center the Bearing
Rail along the length and width of the cylinder, making sure the ends of
the Rail do not cover the Heads. Also, once the Rail has been centered,
tighten all Screws (29). Slide on the new Bearing Blocks (30b) one at a
time, with the reference mark facing you.
9. INSTALL THE CARRIER
Slide the two Bearing Blocks so they are lined up with both ends of
the Piston Assembly. Place the Carrier (36) over the top of the Bearing
Blocks, guiding the Carrier around the Carrier Adjustment Plates (31).
Carefully slide the two Bearing Blocks under the Carrier (36), until the
holes from the top of the Carrier and the Bearing Blocks align. Install
Screws (35) into the Carrier and tighten.
Replace Carrier Adjustment Plates (31) and then install the Carrier
Bearing (32) into the indent on the Adjustment Blocks. Install and tighten
Screws (34) making sure Carrier is captured.
10. REMOUNT THE CYLINDER ONTO THE MACHINE
Be certain any flow controls are in place and adjusted prior to applying
compressed air to the cylinder.
RUBBER
SIDE
GROUND SIDE
