Zephyr ZGS-11000-2 v2 Operation And Maintenance Manual page 30

Manual RHGSE Operation and Maintenance Manual
7.15 Checking the Capstans
It is essential to replace the capstans when the pitch diameter of the first groove, of the
lower roller becomes too small. To check the pitch diameter a 6-7 inch micrometer is required
and a set of pins of the correct diameter is required.
There are several capstans available for the different size cables in use. It is important to use
the correct style capstans for the type of cable being serviced. The following table lists the
relevant dimensions for each capstan style
Cable Diameter
3/16 inch
4.5 mm
5/32 inch
3.5 mm
1/8 inch
Note: ZGS-12474-1 can be used for 3/16 and 4.5 mm cables.
Zephyr International llc
Lower Capstan Part
number
ZGS-10113-20-1
ZGS-12474-1
ZGS-10113-30
ZGS-10340-1
ZGS-10113-40
Page 30 of 40
Measurement Pin
diameter
.185
.175
.156
.132
.120
United States Patent # 7,429,031 B1
ZOM-11000-2 v2 rev E
Minimum dimension
over pin
6.745 in
6.725 in
6.715 in
6.695 in
6.685 in