You are trying to connect a RACF userid to the CAHCHECK started task. The manual states there is no need but your security department wants you to define it.
So you added a userid in the started class, but after the ipl of your testsystem you cannot see any indication the userid is used by the CAHCHECK task.
Here is the solution provided by IBM. You have to create a userid then, to add it to the STARTED class in RACF, follow these instructions:
ADDUSER CAHCHECK NAME('HEALTH CHECKER USER')
ALTUSER CAHCHECK NOPASSWORD TRUST
RDEFINE STARTED IEESYSAS.CAHCHECK OWNER(BIGROUP1) AUDIT(FAILURES(READ)) UACC(NONE)
RALTER STARTED IEESYSAS.CAHCHECK STDATA(USER(CAHCHECK))
Now you will see all access be logged in RACF.