Page 1139 - Foton Workshop Manual - Auman EST-M

Brake system – service brake (air pressure) BR-7

Technical parameter Relay IN

Service data
DI
Free stroke of brake pedal Standard value 12~18mm

Clearance between front brake shoe and brake drum 0.5~0.75mm
EG
Clearance between rear brake shoe and brake drum 0.8~1.2

Inside diameter of front brake shoe shaft's lining Wearing limit value φ30.35mm
TR
Inside diameter of rear brake shoe shaft's lining Wearing limit value φ30.2mm

Friction disc of front brake shoe Wearing limit value 8mm (rivets standing out)
AX
Friction disc of rear brake shoe Wearing limit value 6mm

Service standard value 0.16~0.22mm
Clearance between front shoe shaft lining and shoe shaft FR
Wearing limit value 0.45mm

Service standard value 0.16~0.26mm
Clearance between rear shoe shaft lining and shoe shaft ST
Wearing limit value 0.56mm

Service standard value φ40 . mm BR
Clearance between front brake roller and roller shaft
Wearing limit value φ39.85mm
Service standard value 0.09~0.15mm BW
Clearance between rear brake roller and roller shaft
Wearing limit value 0.4mm

Standard value φ40 . mm EL
Outside diameter of front brake shoe's roller
Wearing limit value φ39.85mm

Standard value φ57mm
Outside diameter of rear brake shoe's roller
Wearing limit value φ56.6mm
Standard value φ46 . mm
Front camshaft's diameter where lining is located
Wearing limit value φ45.80mm

Standard value φ38mm
Rear camshaft's diameter where lining is located
Wearing limit value φ37.7mm

.
Standard value φ40 . mm
Inside diameter of front camshaft lining
Wearing limit value φ40.45mm

Standard value φ38mm
Inside diameter of rear camshaft lining
Wearing limit value φ38.3mm

Standard value 0.20~0.255mm
Clearance between front camshaft and lining
Wearing limit value 0.500mm

Standard value 0.35~0.45mm
Clearance between rear camshaft and lining
Wearing limit value 0.7mm

BR-007