7-3. AIR BRAKE SYSTEM MAINTENANCE (CONT)
g. Air Compressor Assembly (cont).
(2) Air Compressor Drive Belt.
This task covers removal, installation, and ad-
justment of air compressor drive belt. Drive belt tension shall be checked after
every 500 hours of operation.
If a new drive belt is installed, check tension after
first 20 hours of operation then again after every 500 hours of operation.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Socket wrench set, 3/8 inch drive
Belt tension gage
MATERIALS/PARTS: Wire (coat hanger is suitable)
PRELIMINARY PROCEDURE: Engine
right side panels removed (page 9-14).
(a) Loosen two capscrews (1) securing air compressor (2) to mounting bracket
( 3 ).
(b) Move air compressor closer to en-
gine then remove drive belt (4)
from air compressor pulley and
(a) Move air compressor close to en-
gine and position drive belt (4)
around fan pulley and air com-
p r e s s o r p u l l e y.
(b) Adjust tension of air compressor drive belt as described on page 7-97.