Procedures for Assembly and Disassembly of Travel Remote Control Valve

2.Handling common parts [1]Handling packing •Replace packing, gasket, copper gaskets or other fluid sealing parts with new ones as a general procedure. •Coat the gasket for particular areas with liquid gasket. Cautions when applying liquid gasket •Leather packing should be assembled after being immersed in oil. [2]O-rings •If an O-ring has become hardened after a long storage, discard it even if it is unused. •Use only O-rings specified in the parts description list. Especially for the lubricated areas in the engine, O-rings made of special materials like silicon rubber are used to improve heat resistance and prevent early deterioration. Use only genuine parts. •Periphery of an O-ring is marked with either blue or green dots for identification purposes described below.

•Remove scratches, contaminants, paints, oil or old liquid gasket completely from the surfaces to which liquid gasket will be applied. •Apply specified liquid gasket on the application surface evenly and dry the surface for a few minutes. •When the surface becomes dry to the touch, attach the gasket. •Coat O-rings with oil before installing to avoid causing flaws.

Pay special attention to silicon rubber, which is easily torn apart. [3]Handling oil seals •Pay attention to the direction of oil seal lips. •Be careful not to contaminate oil seals and make sure there is no rust or flaws (especially on lip surfaces).

Color Class Symbol Hardness

Blue 1 dot JIS B 2401 1A 1A 70 ± 5

Blue 2 dots JIS B 2401 1B 1B 90 ± 5 Usage Type of rubber Mineral oil resistant and for low pressure NBR

Mineral oil resistant and for high pressure NBR

Red 1 dot JIS B 2401 2 2 70 ± 5 Gasoline resistant NBR

Yellow 1 dot JIS B 2401 3 3 70 ± 5 Vegetable oil resistant

No dot JIS B 2401 4C 4C 70 ± 5 Heat and cold weather resistant CR

Silicon rubber

Green 1 dot JIS B 2401 4D 4D 70 ± 5 Heat and oil resistant Fluorine rubber