PHD GRB DESIGN 2 Series Manual

6441-473A
SERIES GRB DESIGN 2 [6] GRIPPERS
REPAIR PROCEDURES
PHD, Inc. makes no warranty as to the fitness of its products or as to the length of service life after being repaired or parts replaced by anyone
other than authorized employees of PHD, Inc. In no event shall PHD, Inc. be liable for loss of profits, indirect, consequential, or incidental
damages arising out of the use of PHD products.
For additional technical assistance, call or visit our web site:
P.O. Box 9070, Fort Wayne, IN 46899
www.phdinc.com
1-800-624-8511 • 260-747-6151
FIGURE 2
FIGURE 3
MAGNET OR OPEN GROOVE
OF PISTON IS ALWAYS
ORIENTED TOWARDS SHOCK
PAD DURING ASSEMBLY
RADIUS OF WASHER FACES
AWAY FROM PISTON
(SIZES 32, 40, & 50)
SHARP EDGE OF
RETAINER FACES
OUTWARD
ANGLE LIMITING
SPACER
ROD SEAL
*NOTE ORIENTATION
DRIVER PIN
DRIVER PIN SLOT
FRONT FACE
OF GRIPPER
TURNED DOWN
DIAMETER -CU
OPTION
SHOULDER OF
JAW PIVOT PIN
JAW COVER ASSEMBLY
FASTENERS
DRIVER PIN
FRONT FACE
OF GRIPPER
JAW PIVOT PIN
JAW COVER
JAW DRIVER
ROD
ROD SEAL
(SEE FIGURE 2)
JAW SLOT
BODY ASSEMBLY
JAW
OPTIONAL ANGLE
LIMITING SPACER
SHOCK PAD
PISTON PISTON SEAL
WASHER
(SIZES 32, 40, & 50)
PISTON ASSEMBLY
FASTENER
BORE PLUG BORE PLUG SEAL
BORE PLUG RETAINER
BORE PLUG
FIGURE 1

SERIES GRB DESIGN 2 [6] GRIPPERS
REPAIR PROCEDURES 6441-473A
PHD, Inc. PHD GmbH
9009 Clubridge Drive Arnold-Sommerfeld-Ring 2
P.O. Box 9070, Fort Wayne, Indiana 46899 U.S.A. D-52499 Baesweiler GERMANY
Phone [phone] • Fax [phone] Phone [phone] • Fax [phone]
www.phdinc.com • [email protected]
DISASSEMBLY PROCEDURE
1) Warning: All air pressure in the unit must be relieved prior to
disassembly of gripper.
2) During disassembly, be careful to avoid scratching bearing
and sealing areas.
3) Remove bore plug retainer followed by bore plug and bore
plug seal.
4) Remove piston assembly fastener.
5) Remove jaw cover assembly fasteners retaining jaw cover.
Remove jaw cover.
6) Rotate jaws to the fully open position and lift jaw driver,
driver pins, and rod from body of gripper. Unless absolutely
necessary, DO NOT disassemble rod from jaw driver. If rod
and jaw driver are to be separated, mark both items.
Orientation mark is necessary to ensure that the counterbore
in the jaw driver is properly seated on the shoulder of the rod
thread upon reassembly. Remove driver pins.
7) By inserting a long slender tool through rod seal hole, press
out piston and piston seal. Care should be taken not to
scratch sealing surface of seal groove in piston while
removing piston seal.
8) Remove shock pad and optional angle limiting spacer.
9) Remove rod seal. Note orientation of seal. See Figure 2.
10) If jaws must be removed, record depth of jaw pivot pin from
surface of gripper and press jaw pivot pins through body
of gripper. Note: Mark orientation of turned down diameter
of -CU option pins prior to disassembly. See Figure 3.
11) Clean and inspect all components. Worn or damaged
components should be replaced.
REASSEMBLY PROCEDURE
1) Be careful to avoid damaging seals during reassembly.
2) Lubrication guidelines: (Only use lubricants which are
compatible with pneumatic devices.)
• Rod seal, rod, piston bore, bore plug seal, piston and
piston seal: petroleum-based lubricant/grease
• Jaw slot, jaws, jaw driver, jaw pivot pins and driver
pins: petroleum-based high pressure grease
3) Threadlocker guidelines:
• Piston assembly fastener and jaw cover assembly
fasteners: removable threadlocker
• Jaw driver to rod: permanent threadlocker
4) Lubricate and install rod seal. See Figure 2 for orientation.
5) Lubricate jaw slot surfaces and pivot pin holes. See Figure 1.
6) Insert jaws into jaw slot and align jaw pivot pin holes with
body pivot pin holes.
7) Insert jaw pivot pins into body pivot pin holes. Verify that
jaw pivot pin holes are aligned with jaw pivot pins. Press jaw
pivot pins through jaws until pivot pins are flush with front
face of gripper on all gripper sizes with the exception of size
50 which should be pressed .100 [2.5 mm] below the front
face of gripper. Note: -CU option pivot pins should be
pressed so that the shoulder of jaw pivot pin is flush with
front surface of gripper. See Figure 3.
8) Assemble, if necessary, rod to driver using permanent
threadlocker on male threads of rod. Note: Use marks made
on rod and driver during disassembly to verify proper
orientation of driver to rod. Care must be taken not to
damage rod during reassembly. Torque components per
Table 1.
9) Lubricate jaw driver surfaces and holes. Insert drive pins into
jaw driver.
10) Rotate jaws fully open so that drive pin slots in jaws are
visible. Assemble rod and driver assembly, rod first, into jaw
slot. Adjust jaws to allow driver pins in jaw driver to enter
driver pin slots in jaws, see Figure 2. Once assembled,
close jaws.
11) Align jaw cover on body. Apply removable threadlocker to jaw
cover assembly fasteners and install in body. Torque the jaw
cover assembly fasteners per Table 1.
12) Lubricate bore of gripper.
13) Insert angle-limiting spacer when applicable. See Figure 2.
14) Insert shock pad into bore of unit, verify that shock pad
surrounds rod. See Figure 2.
15) Replace and lubricate piston seal. Insert piston, with seal,
into gripper body. See Figure 2 for orientation.
16) Place washer on piston assembly fastener; see Figure 2 for
orientation. Note: This only applies to sizes 32, 40, and 50.
17) Apply removable threadlocker to piston assembly fastener
and assemble through piston into rod. Torque the piston
assembly fastener per Table 1.
18) Assemble bore plug seal to bore plug.
19) Lubricate and install bore plug. See Figure 2 for orientation.
Verify proper seating of bore plug.
20) Install bore plug retainer into body with sharp edges of
retaining ring outward from body. See Figure 2. Verify proper
seating of retaining ring.
SIZE
12 16 20 32 40 50
in-lb
20
44 in-oz
20
Nm
2.3
.30
2.3
in-lb
30
44 in-oz
30
Nm
3.4
.30
3.4
in-lb
80
44 in-oz
80
Nm
9
.30
9
in-lb
260
11
150
Nm
29
1.2
17
in-lb
260
25
150
Nm
29
2.8
17
in-lb
850
25
325
Nm
96
2.8
37
TABLE 1
GRIPPER ASSEMBLY TORQUES
PART
DESCRIPTION
Jaw Driver to Rod
Jaw Cover Assembly Fastener
Piston Assembly Fastener