DANA Spicer Torque-Hub C017A1, Service Manual

Page: 6 / 44

Service Brake Test
The Service Brake Test 1) Install Roll and Leak Test fixture into coupling and onto spindle.
Install an SAE J1926-1 #6 (9/16-18) O-
ring fitting into the “Park”
and “Service” ports on the spindle. Release the Park brake by
applying 1500 psi to this port.
2) Apply 25 in-lbs. torque to the input while slowly increasing the
pressure to the
“Service” port on the spindle, until the brake stops
the hub. Increase the pressure in this port to 2,100 psi and hold
for one minute. If the brake does not leak or lose pressure, the unit
passed the test. If the brake loses pressure, the brake must be
repaired. See procedures in this manual for dis-assembly and
assembly procedures.
NOTE: FAILURE TO PERFORM THIS TEST MAY RESULT IN
DAMAGED OR INEFFECTIVE BRAKE PARTS.
6