Delay pools and parenr proxy

[Alex <alexfk@xxxxxxxxxx>]

part of my squid.conf

acl CACHE peername emts
acl LOCALNET src 192.168.0.0/16
acl ME src 192.168.0.19
...
cache_peer xx.xx.xx.xx parent 3138 0 default proxy-only no-query name=emts
...
delay_pools 1
delay_class 1 2
delay_parameters 1 51000/500000 27000/100000
delay_access 1 deny CACHE
delay_access 1 allow LOCALNET !ME
delay_access 1 deny all

rule "delay_access 1 deny CACHE" doesn't work? squid still limit the 
bandwidth
why?