04-05-2013, 07:09 PM
i changed the mac valve out on the bode air door today hoping it would fix my problem. i did learn about how to adjust the opening and closing speed/rate on the air entrance door
on the mac valve there are two set screws. they are pilot screws to adjust the airflow. the top one as you look at the valve in the unit is the open and the bottom is the close. counterclockwise is faster and clockwise is slower. it takes a little playing with but i got it where i want it.
it is best to start with them most of the way clockwise so the door doesnt slam open and close if you put a new valve in.
then back them off a turn or two and check and repeat.
tom
on the mac valve there are two set screws. they are pilot screws to adjust the airflow. the top one as you look at the valve in the unit is the open and the bottom is the close. counterclockwise is faster and clockwise is slower. it takes a little playing with but i got it where i want it.
it is best to start with them most of the way clockwise so the door doesnt slam open and close if you put a new valve in.
then back them off a turn or two and check and repeat.
tom
2014 Haulmark 40' Super C on Freightliner Cascadia ISX15 Easton 13 speed
Former Owner 1990 38' Newell Coach 236 8V92
Former Owner 1999 45'8" Newell Coach 526 Series 60
Former Owner 2002 45'8" Newell Coach 608 Series 60