Install New Emergency Relay Valve PN104561.

MWO 5-2330-360-23-1

10. INSTALLATION PROCEDURE M870A1 BRAKE MOD (BENDIX) (Continued).

(2) Remove two screws (1), flat washers (2), and locknuts (3) from old emergency relay valve main frame

bracket. Set aside screws and washers for reuse. Discard locknuts in accordance with paragraph 8d. (3) Remove

emergency relay valve (9).

Figure 26.

(4) Remove two front delivery 45 degree elbows (5) with adapters, two rear delivery elbows (4) with adapters,

and supply port elbow (6), from emergency relay valve (9). Set elbows (4 and 5) for use in new relay valve, and supply

port elbow (6) aside for reuse in spring brake valve large cross fitting.

(5) Remove all remaining fittings from valve (9). Clean and inspect fittings and dispose of in accordance with

Install New Emergency Relay Valve PN104561.

NOTE

To prevent mixup between valves, before installing new emergency relay valve, check part

number of valve. Both emergency relay valves look identical but have different internal

components.

(1) Obtain new emergency relay valve.