COATS Kit 8142331 Encoder Gapping Tool - Manual

8114281 00 05/05 Page 1 of 2 © COPYRIGHT 2005 ALL RIGHTS RESERVED PRINTED IN U.S.A.
Encoder Gapping Tool
Encoder/Sonar Adjustment
Note: Errors 55, 57, or 59 occur when the value read
by the sonar is insufficent to obtain a correct runout
measurement.
1. Make sure the Radial Runout and Lateral Runout
Sonars are aligned correctly.
2. Set Encoder to pulley gap at 0.040".
To make adjustments to the encoder simply remove
the weight tray. Use the Encoder Gapping Tool and
see if it will fit between the encoder PCB and the
encoder wheel. If not remove the bolt holding the
bracket, place a drop of loctite on the threads.
Reposition the encoder assembly and snug down the
bolt with the Encoder Gapping Tool between the PCB
and wheel (0.040").
Note: 1) Do not use a material that could scratch the
encoder decal. 2) To achive a correct adjustment, posi-
tion the Tool behind the encoder PCB; to the right of
the holding bracket and not between the bolt heads.
Check your readings again.
3. Go to Self-Test Screen (Green Screen) and verify
that the Encoder is operating correctly and the Sonar
is reading correctly. Use the Sonar check tool (p/n
8114161) or a tape measure and flat card for a target.
XR 1800/1850 Models
Closest Target (Sonar) Readings: 4-inches = 2450 to 2470
Farthest Target (Sonar) Readings: 14-inches = 8100 to 8300
XR 1750 Model
Closest Target (Sonar) Readings: 4-inches = 3840 to 3880
Farthest Target (Sonar) Readings: 14-inches = 12800 to 13200
Note: If the correct readings cannot be obtained then
replace the sonar.
Notched area for
placement between
the encoder PCB and
the encoder wheel.
Encoder
Decal
Encoder
PCB
Gapping
Tool
Closest Target (Sonar) Reading Farthest Target (Sonar) Reading
Encoder Gapping Tool
Kit #81142331
for XR Series Wheel Balancers
COATS, Inc. • Hennessy Industries • 1601 J.P. Hennessy Drive, LaVergne, TN 37086-3565
(800) 688-6359 • (615) 641-7533 • (615) 641-5104 FAX • www.ammcoats.com