Mci coach: rear relay valve
Mci technical service bulletin SB-3013 for 2000-2009 Mci J4500.
- Bulletin number
- SB-3013
- Component
- Service brakes, air: supply: reservoir/tank
- Summary
- Mci coach: rear relay valve. The issue involves leakage from the secondary reservoir to (or through, if the drain cock is left open) the primary reservoir when a full service brakes application is made after the primary reservoir has been drained as part of the failed system check,.
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