WABCO iABS 2S/1M Standard, Maintenance Manual

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121
Component Replacement
7.3.2.2 Bracket-Mounted to Cross Member of Vehicle (2S/1M Standard)
1. Install a 3/4-inch NPT fi tting in supply port (Port 1). Use a 3/4-inch pipe plug to plug unused supply
port (Port 1).
 Use a 3/4-inch pipe plug to plug unused supply port (Port 1). Apply SAE-standard, DOT-approved
sealing paste to either the
fi rst few threads or over the whole length. Pipes with pre-applied thread
sealant may also be used.
2. Locate a position for mounting the assembly to the vehicle cross member midway between the side
rails, close to the brake chambers the valve serves.
 Drill two 3/8-inch mounting holes. The distance between the two holes (O.D.) must be
3-25/32-inches (96 mm) and mount directly to the cross member.
OR
 Build a mounting bracket with two 3/8-inch mounting holes spaced 3-25/32-inches (96 mm) O.D.
apart.
3. Use two 3/8-inch Grade 8 bolts with prevailing torque nuts and washers to attach assembly to the
vehicle cross member. Tighten bolts to 20 lb-ft (27 N•m). Figure 7.8.
Fig. 7.8
4014001 a
TEMPLATE
PLUG UNUSED PORT
Exhaust port must face DOWN.
3-15/16“
4014006a