Maxcess Tidland Raptor Series User manual

Tidland Raptor Series
Air Powered Chuck
Operation and Maintenance
EN
MI 660290 1 P
TIDLAND WINDING SOLUTIONS
6.00 inch
3.00 inch

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 2 of 28
TABLE OF CONTENTS
Table of Contents..................................................................................................................2
Customer Service..................................................................................................................2
Caution..................................................................................................................................3
Recommended Tools.............................................................................................................4
Maintenance Schedule..........................................................................................................4
Daily ..................................................................................................................................4
Periodic Cleaning...............................................................................................................4
Complete Maintenance......................................................................................................4
3" Air Powered Lug Chuck.....................................................................................................5
Technical Overview............................................................................................................5
Assembly Diagram and Parts List......................................................................................6
Installation .........................................................................................................................8
Operation...........................................................................................................................8
Rotary Air Supply...........................................................................................................8
Side Valve Air Supply.....................................................................................................8
To Inflate (Actuate) Chuck..........................................................................................8
To Deflate Chuck .......................................................................................................8
Maintenance......................................................................................................................9
Periodic Cleaning –On the Machine..............................................................................9
Complete Disassembly –Remove Chuck from Machine..............................................10
Replace Spring................................................................................................................11
Replace Diaphragm.........................................................................................................13
6" Air Powered Lug Chuck...................................................................................................14
Technical Overview..........................................................................................................14
Assembly Diagram and Parts List....................................................................................15
Installation .......................................................................................................................16
Operation......................................................................................................................... 16
Rotary Air Supply.........................................................................................................16
Side Valve Air Supply...................................................................................................16
To Inflate (Actuate) Chuck........................................................................................16
Deflating the Chuck..................................................................................................16
Maintenance....................................................................................................................17
Periodic Cleaning –On the Machine............................................................................ 17
Complete Disassembly –Remove Chuck from Machine..............................................18
Replace the Diaphragm (During Complete Disassembly)............................................20
Replace the Diaphragm (Without Complete Disassembly)...........................................22
Raptor Series Chuck Adapters.............................................................................................24
3" Adapter Series............................................................................................................. 24
6" Adapter Series............................................................................................................. 25
Troubleshooting................................................................................................................... 26
CUSTOMER SERVICE
1.360.834.2345 www.maxcessintl.com
1.800.426.1000

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 3 of 28
CAUTION
Read and understand all safety warnings and instructions.
The Air Powered Lug Chuck is under spring tension.
Wear eye protection when using tools or compressed air.
Tidland recommends the use of a hoist for lifting and installing the chuck and/or
adapter.
Chuck weights (approximate) without Adapters or Custom Mounting Flange:
3" –37 lbs
6" –70 lbs
Adapter weights (approximate):
3" –X" range from 13-32 lbs
6" –X" range from 18-74 lbs
The use of grease products will cause contamination, allowing dirt and debris to
accumulate on moving parts. Use only silicone dry film lubricant as recommended below.

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 4 of 28
RECOMMENDED TOOLS
Clean, non-lubricated air supply: 80-120 psi (5.5-8.3 bar) for proper operation.
Hex wrenches: 1/8", 3/16", 3/8"
Tidland Inflation Tool for Side Valve use
Tidland Inflation Tool:
Quick Release w/ gauge (Part No. 128052)
Quick Release w/o gauge (Part No. 128054)
Schrader w/ gauge (Part No. 128053)
Schrader w/o gauge (Part No. 128055)
Tidland Air Release Tool (Part No. 111630)
Dow Corning Molykote®557 Dry Film Lubricant (Do not use any grease.)
LOCTITE®242 (blue)
Jacking screws (#10-32NF x 1 1/4" socket head cap screw recommended)
For more accessories to help with your winding processes, visit www.maxcessintl.com.
MAINTENANCE SCHEDULE
For optimal performance, keep chucks free of buildup and corrosion by performing regular
maintenance.
Daily
Throughout the operating shift, use compressed air to keep chuck free of any visible dust
and debris.
Periodic Cleaning
If application of compressed air does not remove dust or debris buildup, or if lugs are
sticking, Tidland recommends partial disassembly of the chuck for cleaning and lubrication,
which can be done without removing the chuck from the machine. Remove lugs; clean lugs
and lug slots. Lubricate wear surfaces with dry film lubricant spray before reassembly.
Complete Maintenance
Every 6 months, remove the chuck from the machine for complete disassembly. Clean all
parts thoroughly, removing debris and corrosion and inspect for wear. Lubricate wear
surfaces with dry film lubricant spray before reassembly. In severe applications, more
frequent maintenance may be necessary

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 5 of 28
3" AIR POWERED LUG CHUCK
Technical Overview
The 3" Air Powered Lug Chuck uses pneumatic actuation of a rolling diaphragm, piston and
wedge block to expand three cast steel lugs. The serrated, wide-footprint lugs distribute
internal core pressure that results in 500-600 ft·lbs (6000-7200 in·lbs) of potential torque,
depending upon core material. A mechanical spring, close tolerances and minimal gaps
between moving parts ensure positive, reliable lug retraction.
The 3" Air Powered Lug Chuck is designed to fit 3" cores (+.010"/+.020").
The 3" Air Powered Lug Chuck mounts using a 7" bolt circle. If your spindle has a different
bolt pattern, a Custom Mounting Flange is required. Your chuck will be shipped with the
flange already mounted.
Contact a Tidland Customer Service Representative for additional information about
custom options. (1-800-426-1000).
CYLINDER HOUSING
CHUCK BODY
LUGS
7.062"
4.059"
Ø 7.00"
BOLT CIRCLE
CUSTOM MOUNTING FLANGE

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 6 of 28
3" AIR POWERED LUG CHUCK
Assembly Diagram and Parts List
Part No. 692374
ITEM
DESCRIPTION
QTY
PART NO.
692374
ENKEL NO.
697300
*1
GUIDE PIN
3
690391
690391
2
SOC HD CPSCR 3/8-16NC X 1.5" LG (GRADE 8)
2
599047
599047
3
LUG
3
586177
586177
4
3" AP CHUCK BODY
1
692373
692373
5
AIR FILTER
3
769405
769405
6
WIPER SEAL
1
692367
692367
7
CYLINDER HOUSING
1
572029
634814
*8
SPRING
1
770260
770260
A Custom Mounting Flange is available for side valve inflation.
* Items 4 and 7 may vary in appearance depending upon your chuck part number. Assembly instructions are the same.

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 7 of 28
3" AIR POWERED LUG CHUCK
Assembly Diagram and Parts List
Actuator Assembly Parts
ITEM
DESCRIPTION
QTY
PART
NO.
ENKEL
PART NO.
9
WEDGE BLOCK
1
570603
570603
10
ROLL PIN 3/16" DIA X 7/8" LG
1
597402
597402
11
PISTON
1
572030
572030
12
SOC HD CPSCR 1/2-13NC X 1" LG (GRADE 8)
1
584626
584626
13
DIAPHRAGM
1
677456
677456
14
DIAPHRAGM RETAINER PLATE
1
572031
572031
15
BUTTON HD CPSCR 10-32NF X 1/2" LG (GRADE 8)
6
call
call
16
DIAPHRAGM RETAINER RING
1
595603
634815
17
O-RING (PARKER 2-248 N70)
1
597401
N/A
Actuator Assembly parts are sold separately.
15
9
10
12
14
13
16
17
11
16 (Enkel only)

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 8 of 28
3" AIR POWERED LUG CHUCK
Installation
Use caution when lifting and installing. Chuck weight is 37 lbs.
1. Before mounting, ensure the o-ring is installed on the chuck.
If it is not installed, see Parts List on page 7 and order a
replacement.
Note: Do not mount chuck without the o-ring in place.
2. Align the chuck register with the spindle register.
3. Holding chuck in place on the spindle, rotate the chuck until
boltholes are aligned.
4. Mount chuck with1/2-13NC socket head bolts (6 places).
5. Before loading roll/core, apply operating air pressure to the chuck to ensure that chuck
lugsexpandandcollapseproperly.Iftheydonot,refertoTROUBLESHOOTINGonpage26.
6. Install the roll/core, making sure that the core fully covers the lugs.
Chuck is ready for use.
To install the Tidland Raptor Series 3"- 6" Adapter, see page 24.
Operation
Rotary Air Supply
Operate the chuck at 80-120 psi (5.5-8.3 bar) for optimal performance.
Side Valve Air Supply
A Custom Mounting Flange with a side valve is required for operation. Contact a Tidland
Customer Service Representative for additional information or if your chuck arrives without the
flange (1-800-426-1000).
To Inflate (Actuate) Chuck
1. Ensure that cores fully cover the chuck lugs.
2. Use the Tidland Inflation Tool.
3. Push the air nozzle firmly into the valve
located in the mounting flange.
4. Inflate the chuck until the air supply pressure
gauge indicates a minimum of 80 psi (5.5 bar).
To Deflate Chuck
1. Stop chuck rotation.
2. Rotary Air: Shut off air supply to the valve.
Side Valve: Using the Tidland Air Release Tool, push in the quick release side air valve,
allowing the air to escape through the hole in the center of the button.
3. Remove the chuck from the roll/core.
BODY HAZARD. Core must fully cover lugs during operation.
Keep the operating pressure above 80 psi (5.5 bar) to help ensure safety and optimal
performance. Do not exceed the maximum air pressure of 120 psi (8.3 bar).
O-RING
SIDE VALVE
CUSTOM MOUNTING FLANGE

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 9 of 28
3" AIR POWERED LUG CHUCK
Maintenance
If compressed air does not remove dust or debris buildup, or if lugs are sticking, Tidland
recommends removing the lugs for cleaning and lubrication. This can be done without removing
the chuck from the machine.
Periodic Cleaning –On the Machine
1. Remove adapter from chuck (page 25), if installed.
2. STOP: Do not remove all three chuck lugs at the same time. At least one lug must
stay in place to keep the wedge block slots aligned with the chuck body lug slots.
3. Using 3/16" hex wrench, remove one or two guide pins and lug(s). Inspect for wear and
replace if necessary.
4. Clean out lug slots, wipe debris from all parts, and remove any corrosion.
Note: If debris or corrosion cannot be removed, Tidland recommends removing the chuck
from the machine for complete disassembly and maintenance. See page 10.
5. Lubricate bottom of lugs and lug slots with silicone dry film lubricant. Reinstall lugs in
slots.
6. Apply LOCTITE 242 to guide pin threads only and finger-tighten until threads are fully
engaged. Note: Keep guide pin surface free of LOCTITE.
7. Repeat Steps 4 through 6 for the remaining lug(s).
GUIDE PINS (3 PLCS)
LUGS (3 PLCS)

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 10 of 28
3" AIR POWERED LUG CHUCK
Complete Disassembly –Remove Chuck from Machine
Tidland recommends complete disassembly for cleaning and lubrication every 6 months; in
severe applications, more frequent maintenance may be necessary. The chuck must be removed
from the machine for complete disassembly.
1. Remove adapter from chuck (page 25), if installed. Deflate chuck completely.
2. Remove chuck from machine and set on workbench, backplate facing up (Fig. 1).
3. Use #10-32NF screws in the jacking threads to lift the diaphragm retainer ring.
AVOID over-extending the diaphragm when pulling up the diaphragm ring (Fig. 1).
4. Inspect the diaphragm for wear at the folds and replace if necessary (page 13).
5. Push the diaphragm back down into place around the actuator assembly (Fig. 2, 3).
6. Turn the chuck over onto the backplate. Caution! Ensure that the diaphragm edges are
not pinched between the chuck body and the work surface.
7. Using a 3/16" hex wrench, remove two guide pins and two lugs (Fig. 4).
Caution! If all three guide pins are removed at once, lugs could pop out and result in
sudden release of spring tension.
8. Remove the third guide pin, using caution (Fig. 5). The remaining lug holds spring tension;
if it is not easily removed, hold it firmly in place and turn the chuck over again so the
backplate is facing up.
Caution! If the lug is jarred loose or falls out, tension is released and the actuator assembly
may expand outward.
9. Compress the actuator assembly by hand to release spring tension and remove the
remaining lug (Fig. 6).
ACTUATOR COMPRESSED
LUG REMOVED
GUIDE PINS (1, 2)
REMAINING LUG
GUIDE PIN (3) (3)
Fig. 4
Fig. 5
Fig. 6
Fig. 3
Fig. 2
JACKING SCREWS
Fig. 1

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 11 of 28
3" AIR POWERED LUG CHUCK
10. Turn the chuck on its side and push on the wedge block to remove the actuator
assembly (Fig. 7). If it is not easily removed, gently tap the wedge block with a soft blunt
object (wood or aluminum) until the actuator assembly is loose.
Important: Note position of diaphragm as it is folded around the actuator assembly. Be
careful not to damage or unfold the diaphragm.
11. Clean all chuck surfaces, removing debris and corrosion from wedge block, body and
lugs.
a. Remove the wiper seal from the body cavity, clean and reinstall (Fig. 8).
b. Inspect spring for wear and replace if broken (see below).
c. Inspect diaphragm for wear and replace if necessary (see page 13).
d. Lubricate lugs, lug slots and wedge block with silicone dry film lubricant.
Replace Spring
Replace the spring only if it is broken.
Note: Lug retraction failure may be an indication of a broken spring.
1. Follow removal and disassembly instructions in the PREVENTIVE MAINTENANCE
section to remove actuator assembly from chuck (page 10, Steps 1-11).
2. Remove and replace spring (Fig 9). Make sure the wiper seal is still installed in the body.
3. Reassemble chuck.
Chuck reassembly instructions begin on next page.
NOTICE
Ensure wear surfaces are free from debris and corrosion
before applying dry film lube.
Fig. 9
Fig. 7
Fig. 8

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 12 of 28
3" AIR POWERED LUG CHUCK
Reassemble Chuck
1. Reinstall actuator assembly in the chuck body. Make sure that the wiper seal is in place
in the body.
Note: To reinstall the lugs, slots in wedge block must align with lug slots in chuck body.
2. Compress the actuator assembly in the chuck body
far enough to install one lug.
3. Apply a small amount of LOCTITE 242 to the threads
of the guide pin and install. Fully engage threads. Do
not overtighten.
4. Place the back surface of the chuck on the
workbench and reinstall the remaining lugs.
5. Turn the chuck over. Carefully push the diaphragm
down around the actuator assembly.
6. Press the bead on the diaphragm into the groove in
the retainer ring. Ensure that the bead in pressed in
all the way around.
7. Push the retainer ring into place in the chuck body.
Note: If diaphragm edges are properly aligned in the
retainer ring groove, the ring seats almost completely
in the chuck backplate. Complete compression
occurs when the chuck is reinstalled on the machine.
Complete instructions for replacing the diaphragm are on page 13.
O- RING

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 13 of 28
3" AIR POWERED LUG CHUCK
Replace Diaphragm
Correct orientation of the folded diaphragm is essential for proper operation.
It is not necessary to remove the lugs or actuator assembly to replace the diaphragm.
Removing
1. Remove adapter from chuck (page 25), if installed.
2. Remove chuck from machine and set on workbench, backplate facing up.
3. Use #10-32NF screws in the jacking threads to lift and remove the diaphragm retainer
ring.
4. Separate the diaphragm from the retainer ring and remove from the chuck.
5. Remove the diaphragm retainer plate.
Reinstalling
1. Ensure that the diaphragm is folded back on
itself so that the bead faces toward the inside.
Note: The diaphragm has a rough side (like a
cloth weave) and a smooth side. Install the
rough side against the piston.
2. Set the diaphragm on the actuator assembly.
Maintaining the fold, push the diaphragm
down around the actuator assembly in the
chuck body. Align the bolt holes.
3. Install the diaphragm retainer plate and align the bolt holes.
4. Apply a small amount of LOCTITE 242 to the button head capscrew threads and install
them in 6 places.
5. Press the diaphragm "bead" into the groove all the way around diaphragm retainer ring.
6. Set the retainer ring down on the actuator assembly.
7. Install the o-ring.
O- RING
Note: If diaphragm edges are properly aligned in the retainer ring groove,
the ring seats almost completely in the chuck backplate. Complete
compression occurs when the chuck is reinstalled on the machine.
BEAD
DIAPHRAGM RETAINER RING
BOLTS (6 PLCS)
DIAPHRAGM RETAINER PLATE
DIAPHRAGM
O- RING
CHUCK BODY

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 14 of 28
6" AIR POWERED LUG CHUCK
Technical Overview
The 6" Air Powered Lug Chuck uses pneumatic actuation of a rolling diaphragm, piston and
wedge block assembly to expand five cast steel lugs. The serrated, wide-footprint lugs
distribute internal core pressure that results in up to 1,000 ft·lbs (12,000 in·lbs) of potential
torque, depending upon core material. A mechanical spring, close tolerances and minimal
gaps between moving parts ensure positive, reliable lug retraction.
The 6" Air Powered Lug Chuck is designed to fit 6" cores (+.010"/+.020").
The 6”Air Powered Lug Chuck flange uses an 8" bolt circle. If your spindle has a different
bolt pattern, a Custom Mounting Flange is required. Your chuck will be shipped with the
flange already mounted.
Contact a Tidland Customer Service Representative for additional information about
custom options. (1-800-426-1000).
CHUCK BODY
LUGS (5 PLCS)
CUSTOM MOUNTING FLANGE
LOCKING PIN HOLES
ALIGNMENT SLOTS
6.966"
3.859"
Ø 8.00"
BOLT CIRCLE
Ø 9.656

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 15 of 28
11*
14*
13*
12*
10*
9*
8*
7*
6*
5*
1
2
4
15*
3
6" AIR POWERED LUG CHUCK
Assembly Diagram and Parts List
Part No. 641015
691294 (after Nov 2008)
ITEM
DESCRIPTION
QTY
PART NO.
641015
PART NO.
691294
1
6" AP CHUCK BODY
1
641016
691292
2
LUG
5
641026
641026
3
INSERT, BRONZE
5
641742
641742
**4
GUIDE PIN
5
550568
690391
5
WEDGE BLOCK *
1
645515
682746
6
SPRING CUP *
1
641741
682747
**7
SPRING *
1
597404
597404
8
PISTON *
1
641021
641021
9
SOC HD CPSCR 1/2-13NC x 1-1/4" LG (GRADE 8) *
1
581479
581479
10
DIAPHRAGM *
1
677482
677482
11
DIAPHRAGM RETAINER PLATE *
1
641022
641022
12
BTN HD CPSCR #10-32NF x 1/2" LG (GRADE 8) *
6
call
call
13
DIAPHRAGM RETAINER RING *
1
641020
641020
14
O-RING (PARKER #2-248 N70) *
1
597401
597401
15
WIPER SEAL *
1
662252
662252
* When assembled, these parts are referred to in the instructions as the Actuator Assembly
** Items 4 and 7 may vary in appearance depending on your chuck part number. Assembly instructions are the same.

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 16 of 28
6" AIR POWERED LUG CHUCK
Installation
1. Before mounting, ensure the o-ring is installed on the chuck.
If it is not installed, see PARTS LIST on page 15 and
order a replacement.
Caution! Do not mount chuck without the o-ring in place.
2. Align the chuck register with the spindle register.
3. Holding chuck in place on the spindle, rotate the chuck until bolt
holes are aligned.
4. Insert 1/2-13NC socket head bolts (6 places).
5. Before loading roll/core, apply operating air pressure to the chuck
to ensure that chuck lugs expand and collapse properly. If they do not, refer to
TROUBLESHOOTING on page 26.
6. Install roll/core, making sure that the core fully covers the lugs.
Chuck is ready for use.
To install the Raptor Series Adapter, see pages 24-25.
Operation
Rotary Air Supply
Operate the chuck at 80-120 psi (5.5-8.3 bar) for optimal performance.
Side Valve Air Supply
A Custom Mounting Flange with a side valve is required for operation. Contact a Tidland
Customer Service Representative for additional information or if your chuck arrives without
the flange (1-800-426-1000).
To Inflate (Actuate) Chuck
1. Ensure that cores fully cover the chuck lugs.
2. Use the Tidland Inflation Tool.
3. Push the air nozzle firmly into the valve
located in the mounting flange.
4. Inflate the chuck until the air supply pressure
gauge indicates a minimum of 80 psi (5.5 bar).
Deflating the Chuck
1. Stop chuck rotation.
2. Rotary Air: Shut off air supply to the valve.
Side Valve: Using the Tidland Air Release Tool, push in the quick release side air
valve, allowing the air to escape through the hole in the center of the button.
3. Remove the chuck from the roll/core.
WARNING
Use a hoist and safe handling procedures during installation.
Chuck weight is 70 lbs. It is equipped with a 3/8-16 threaded hole to
accommodate a screw eye for lifting.
BODY HAZARD. Core must fully cover lugs during operation.
Keep the operating pressure above 80 psi (5.5 bar) to help ensure safety and optimal
performance. Do not exceed the maximum air pressure of 120 psi (8.3 bar).
O-RING
SIDE VALVE
CUSTOM MOUNTING FLANGE
3” CHUCK SHOWN

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 17 of 28
GUIDE PINS (5 PLCS)
LUGS (5 PLCS)
6" AIR POWERED LUG CHUCK
Maintenance
If compressed air does not remove dust or debris buildup, or if lugs are sticking, Tidland
recommends removing the lugs for cleaning and lubrication. This can be done without
removing the chuck from the machine.
Periodic Cleaning –On the Machine
Periodic cleaning of the lugs and slots is essential for proper operation. The following steps
are done without removing chuck from the machine.
1. Remove adapter from chuck (page 25), if installed.
2. STOP: Do not remove all five chuck lugs at the same time. At least one lug must
stay in place to keep the wedge block slots aligned with the chuck body lug slots.
3. Using 3/16" hex drive wrench, remove the guide pins from the topmost lugs (Fig. 1)
4. Rotate the chuck to remove the bronze inserts.
Note: The inserts may not come out. It is not normally necessary to remove them.
Do not pry them out.
5. Clean out lug slots. Inspect lugs and inserts for wear and replace if necessary.
6. Clean chuck lugs and bronze inserts (if removed). Lubricate bottom of inserts, lugs
and lug slots with spray.
7. Reinstall bronze inserts, if removed, and lugs to the topmost slots on the chuck.
Note: Pay close attention to the orientation of the insert. Taper should point toward
chuck flange (Fig. 2).
8. Apply LOCTITE 242 (no primer) to guide pin threads only.
Keep guide pin surface free of LOCTITE.
9. With one hand on a lug, tighten the guide pin just until you feel the lug move, then
back the guide pin out 1/8 turn. Repeat for the other lugs.
10. Rotate the chuck to move the remaining two lugs to the topmost position and repeat
the procedure (Steps 4-10).
11. Slip a section of core over the chuck to test the fit. If it is tight, determine which lugs
are expanded and back off the guide pins until lugs collapse enough to fit the core.
NOTICE
Ensure wear surfaces are free from debris and corrosion
before applying dry film lube.
Fig. 1
TAPER
Fig. 2

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 18 of 28
6" AIR POWERED LUG CHUCK
Complete Disassembly –Remove Chuck from Machine
Tidland recommends complete disassembly for cleaning and lubrication every 6 months;
in severe applications, more frequent maintenance may be necessary. The chuck must be
removed from the machine for complete disassembly.
1. Remove adapter from chuck (page 25), if installed.
2. Deflate chuck completely. Note: If lugs fail to retract, see TROUBLESHOOTING
(page 26).
3. Remove chuck from machine and set it on workbench, back surface down.
Remove the Lugs
4. To release tension on the lugs, tighten one guide pin until the actuator assembly is
drawn upward about 1/4".
5. Remove the other four guide pins and the lugs. (Fig. 3)
Note: It is not normally necessary to remove the bronze inserts; do not pry them out.
If they are loose and come out easily, set them aside for later reinstallation.
6. Loosen the remaining guide pin until the actuator moves down into the chuck body
and stops; remove the pin and the remaining lug. (Fig. 4)
WARNING
Use a hoist and safe handling procedures during installation..
Chuck weight is 70 lbs. Adapter weights range from 13-74 lbs.
Chuck and adapters are equipped with a 3/8-16 threaded hole to
accommodate a screw eye for lifting.
ACTUATOR ASSEMBLY WILL MOVE
UP AS GUIDE PIN IS TIGHTENED
Fig. 3
Fig. 4
ACTUATOR ASSEMBLY WILL MOVE
DOWN AS GUIDE PIN IS LOOSENED.

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 19 of 28
6" AIR POWERED LUG CHUCK
Remove the Actuator Assembly
7. Turn the chuck on its side.
8. Push the actuator assembly out. If it is not easily removed, gently tap the wedge
block with a soft blunt object (wood or aluminum) until the assembly is loose.
Note: It is not normally necessary to remove the bronze inserts; do not pry them out. If
they are loose and come out easily, set them aside and reinstall during reassembly.
9. With the diaphragm retainer ring facing up, set the actuator assembly on the
workbench.
Disassemble the Actuator Assembly
1. Remove chuck from machine and remove
actuator assembly from chuck.
2. Remove the o-ring from the diaphragm retainer
ring. Inspect for cracks and replace if necessary.
3. Remove the button head capscrews from the
diaphragm retainer plate.
4. Lift the retainer plate and ring off of the
diaphragm.
5. Important: Note position of diaphragm as folded
around the piston. Remove the diaphragm from
the piston. Inspect the diaphragm for cracks,
tears or worn areas. Replace diaphragm if broken
threads
are visible.
6. Clean all actuator assembly parts, including the
slots in the wedge block.
Note: It is not necessary to remove the bronze
inserts; do not pry them out. If they are loose and
come out easily, set them aside and reinstall
during reassembly.
(continued next page)
O-RING
BUTTON HEAD CAPSCREWS
DIAPHRAGM RETAINER PLATE
DIAPHRAGM
PISTON
WEDGE BLOCK ASSEMBLY
BRONZE INSERTS
DIAPHRAGM RETAINER RING
WOOD BLOCK
ACTUATOR ASSEMBLY
CHUCK BODY
DIAPHRAGM RETAINER RING

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Tidland Raptor AP Chuck
MI 660290 1 P
Page 20 of 28
6" AIR POWERED LUG CHUCK
Disassemble the Actuator Assembly (continued)
7. Remove the bolt (use 3/8" hex drive) that holds
the piston to the wedge block assembly.
8. Lift the piston off the wedge block.
9. Remove and inspect the spring. Replace spring
if broken or excessively corroded.
10. Lift spring cup (with wiper seal) off the wedge
block assembly and clean out underneath.
11. Reassemble after cleaning and inspection;
reinstall the diaphragm (page 22).
Note: During reassembly, pay close attention to the
orientation of the spring cup as shown in the
illustration.
Ensure that the roll pin is installed in the
piston: align it with the hole in the wedge
block rod.
Replace the Diaphragm
(During Complete Disassembly)
1. Note: The diaphragm has a rough side (like a cloth weave) and a smooth side.
Install the rough side against the piston.
2. Set the diaphragm over the piston and align
the bolt holes. Fold the edges of the diaphragm up
so that the "bead" faces to the inside.
3. Install the diaphragm retainer plate and align the
bolt holes.
4. Apply a small amount of LOCTITE 242 to the bolt
threads and install them in 6 places.
5. Press the diaphragm "bead" into the groove all the
way around the diaphragm retainer ring.
6. Set the retainer ring down on the actuator
assembly.
7. Actuator assembly is ready to be inserted into the
chuck body.
BEAD
DIAPHRAGM FOLD
RETAINER
RING
WIPER SEAL
ROLL PIN
PISTON
WEDGE BLOCK ROD
SPRING
BOLT
SPRING CUP
WEDGE BLOCK