GILLIG LOW FLOOR, Руководство по обслуживанию

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236
Air System
R-4 Assembly
All torque figures given in this section are assembly torques and
typically can be expected to fall off after assembly is finished. DO
NOT RETORQUE after initial assembly torques fall unless instructed
otherwise.
Bendix recommends that hand wrenches only be used for assembly.
Prior to assembly, lubricate all O-rings, O-ring bores, and any sliding surfaces with a silicon lubricant
equivalent to Dow Corning #10.
1. Install large piston O-ring on piston.
2. Install inner and outer O-rings in the exhaust cover assembly.
3. Install the sealing ring on the cover.
4. Install piston in body, taking care not to damage the piston O-ring.
5. Noting the reference marks made during disassembly, install the cover on the valve body and the
mounting bracket on the cover.
6. Secure the mounting bracket and cover to the body using the 4 capscrews and lockwashers.
Torque to 80–120 in-lb.
7. Install the valve retainer on the inlet/exhaust valve and install in the body.
8. Install the inlet/exhaust valve return spring in the body.
9. Install the exhaust cover assembly in the body, taking care not to damage the O-ring.
10. While depressing the exhaust cover, install the retaining ring. Make certain the retainer is com-
pletely seated in its groove in the body.
11. Install the R-14 service port cap nut O-ring on the cap nut.
12. Install the diaphragm in the R-14 cover, making certain it is positioned between the guide ribs in
the cover.
13. Install the service port cap nut and torque to 150 in-lb.
14. Test the valves as outlined in the “Operational and Leakage Tests” section before returning the
R-14 to service.