5 -4
(2) Standard torque data for hydraulics
Installation of adjustable fittings in
straight thread O-ring bosses
1. Lubricate the O-ring by coating it with a light
oil or petroleum.
2. Install the O-ring in the groove adjacent to
the metal backup washer which is assembled
at the extreme end of the groove.
3. Install the fitting into the straight thread boss
until the metal backup washer contacts the face
of the boss.
NOTICE: Do not over tighten and distort the
metal backup washer.
4. Position the fitting by turning out
(counterclockwise) up to a maximum of one
turn.
5. Holding the pad of the fitting with a wrench,
tighten the locknut and washer against the face
of the boss.
Standard torque data for hydraulic tubes and fittings
NOTICE: These torques are recommended for hydraulic tubes of your tractor. When assemble the
hydraulic lines, refer to the following torques on each application. Before installing and torquing
pipe fittings, Clean the threads and faces.
Thread
Torque
Figure Remarks
N · m {
㎏
f · m}
G 1/4 49~69 5~6 1. Materials of threaded hole:
G 3/8 59~69 6~7 Cast or steel.
G 1/2 78~88 8~9
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