BENDIX R-12DC Installation Instructions

BENDIX R-12DC
® ®
Kit Contents
Item No.
1 Valve Spring
2 Check Valve Guide
3 Check Valve
4 O-Ring
5 O-Ring
6 O-Ring
7 Inlet & Exhaust Valve
8 Valve Retainer
9 Spring
10 O-Ring
11 O-Ring
12 Exhaust Cover
13 Retaining Ring
14 Lubricant (Not Shown)
Differential Spring
(Controls Crack Pressure*)
(Not required for Most
Models. See Below.)
Differential Springs
*Crack Pressure is the amount of control
pressure required by the valve to initiate
air delivery. For Crack pressures other
than 4 psi, a differential spring is used
in the assembly to produce the required
valve response.
(Models designed to have a 4 psi crack
pressure do not require a differential spring.)
Figure 1 – Bendix R-12DC
®
RELAY VALVE MAJOR MAINTENANCE KIT
Description Qty.
Horizontal Delivery
Ports
Relay Valve Exploded View
®
1
1
1
1
1
1 Valve
Cover
1
1
1
1
1
1
1
1
Vertical
Delivery
Ports
Cap Screw
Primary Control
Port 1/4 NPT
2
1
3
5
Secondary
Control Port
6
1/4 NPT
Relay Piston
Valve Body
Supply Port
7
8
9
10
11
12
13
4
Double
Check
Cover
Torx
®
Screw
1