FasTest EZ Series Seal Maintenance - Manual (Page 2)

SEAL REPLACEMENT INSTRUCTIONS
Roseville, MN
Ph: 1-800-444-2373
Fax: 651-645-7390
www.fastestinc.com
WP129 Rev A 5/2/2014
ZN1 DIS-ASSEMBLY:
1. ZN1 Connectors utilize a hex bolt shaft. Thread washer cap forward (ALL
SIZES) until it touches body. Using a ¼” wrench or socket remove bolt.
Hold handle from spinning as bolt is loosened and removed. Remove
small o-ring in groove on bolt. Discard washers and main seal.
ZN2, 3 & 4 DIS-ASSEMBLY:
2. These three ZN sizes utilize the hex nut to retain seal sets. Hold handle
from spinning as nut is loosened and removed. Discard washers and
seal(s).
ZN1 RE-ASSEMBLY:
3. Load bolt with new seal kit parts, tapered washer, main seal and flat
washer. Then slide the spacer back onto bolt and place o-ring back in
groove on bolt. (DISCARD C-CLIP RETAINING RING FROM KIT).
4. Loaded Bolt, threads into an internal shaft. Using same ¼” wrench or
socket. Tighten until you feel a hard stop. Bolt threads into a hard stop
inside the internal shaft.
ZN2, 3 & 4 RE-ASSEMBLY:
5. Load shaft with new seal kit parts, flat washer, main seal(s) and tapered
washer. Thread nut back on shaft and tighten with wrench or socket.
Tighten nut until you feel a hard stop. (DISCARD E-CLIP RETAINING
RING FROM KIT).
6. When nut is in proper position on shaft the gap between red body and
spacer should be .06”-.08”.
FUNCTIONAL CHECK:
Prior to applying pressure to the termination port rotate handle in both direc-
tions. Make sure connector draws shaft back and compress’s seal(s) as it did
prior to dis-assembly.
 CAUTION NOTES;
 CAUTION: The maximum rated pressure is stamped on the connector body. Be-
fore using, verify that this pressure rating is within your working pressures.
 WARNING: Tug on the connector to assure proper engagement and gripping
before introduction of pressurized media.
 DO NOT force connector onto test part when connecting. Forcing the connector
will result in poor sealing and possible leakage.
 DO NOT spin test piece on seal once lever has been rotated 90° degrees.
O-RING
MAIN
SEAL
WASHERS
BOLT
LOADED
BOLT
SPACER
MAIN
SEAL NUT
FLAT
WASHER
TAPERED
WASHER
GAP
BODY