User's Manual

CATALOG
BW9049 © 2002 Bendix Commercial Vehicle Systems LLC. All Rights Reserved. 12/2002. Printed in U.S.A.
13-TLR-5
Antilock
Modulator Assys.
M-12 Modulator
IMPORTANT REPLACEMENT KIT NOTE
Either of two (2) MC-30 kits can be used to replace each
M-12. The difference between the two replacement kits
shown for each M-12 is the length of the pigtail wiring
harness included in the kit.
The first replacement kit part number shown contains a
pigtail harness that is 5 feet in length while the second
kit part number contains a pigtail harness that is 19.5
feet in length.
RESERVOIR MOUNTED M-12
4 PSI CRACK PRESSURE
M-12 Replace With
Pc. No. MC-30 Kit
65282 Kit Group 1
65448 Kit Group 1
550291 Kit Group 1
550579 Kit Group 1
RESERVOIR MOUNTED MC-12
5.5 PSI CRACK PRESSURE
MC-12 Replace With
Pc. No. MC-30 Kit
65531 Kit Group 3
550721 Kit Group 3
BRACKET MOUNTED M-12
4 PSI CRACK PRESSURE
M-12 Replace With
Pc. No. MC-30 Kit
65346 Kit Group 2
65367 Kit Group 2
65392 Kit Group 2
550423 Kit Group 2
550452 Kit Group 2
550514 Kit Group 2
IMPORTANT
REPLACEMENT INFORMATION
The M-12 Modulator is OBSOLETE and must be replaced with a complete MC-30 assembly
and pigtail wire harness. MC-30 conversion kits, which contain both the MC-30 and the ap-
propriate pigtail wire harness, have been developed to assist in the change over. Refer to the
MC-30 Conversion Kit Catalog Page for kit contents.
M-12 MAINTENANCE KIT 102802
Is still available to service the lower relay valve
section of the modulator. Solenoid and electrical
components and subassemblies are not available.
The following parts are contained in the kit:
QTY. DESCRIPTION
1 RETAINING RING
1 EXH COVER CPL
1O-RING
1O-RING
1 VALVE SPRING
1 VALVE RETAINER
1 INL & EXH VALVE
1O-RING
1O-RING
Note: The gasket (560355) used between the
controller and M-12 modulator must be purchased
separately. Detail parts other than those listed
above are not available for service.
BRACKET MOUNTED MC-12RESERVOIR MOUNTED MC-12
OBSOLETE
DELIVERY
PORTS
(4Vertical)
OBSOLETE
SUPPLY
PORT
DELIVERY
PORTS
(2Vertical
2 Horizontal
)
SUPPLY
PORT