10. INSTALLATION PROCEDURE M870A1 BRAKE MOD (BENDIX) (Continued).
Install Service Brake Chamber to Rear Air Reservoir Hoses.
(1) Install new air hose with adapter, PN 109165, (1), from the rear axle right air chamber elbow, to the rear air
reservoir relay emergency valve right delivery port (2).
(2) Install new air hose with adapter, PN 109165,(3), from the rear axle left air chamber to the rear air reservoir
tank relay emergency valve left delivery port (4).