Kubota U48-4, Workshop Manual

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GENERAL
U48-4,U55-4, WSM
G-6
Tightening Bolts and Nuts
• Tighten bolts and nuts to their specified torque.
• Tighten nuts and bolts alternately top/bottom
(a) (b)
, left/right so
the torque is distributed evenly.
RY9212001GEG0019US0
Assembling Hydraulic Hoses
• Tighten to their specified torque.
• Before assembling, wipe the inside of metal fittings clean of any
dirt.
• After assembly, put the fitting under normal pressure and check
that it does not leak.
RY9212001GEG0020US0
Elbow with Male Seat Assembly Procedure
When assembling an elbow with male seat, adhere to the
following procedures to prevent deformation of O-rings and leaks.
1. Connecting to Valves
• Clean the blow with male seat and the surface of the seal
opposite and mount with the lock-nut on top.
• Finger tighten till it touches the washer.
2. Positioning
• Turn the mouth of the elbow back so it faces the right
direction. (not back over 1 turn)
3. Fasten
• Tighten the lock-nut to the specified torque with a wrench.
RY9212001GEG0021US0
(A) Top/bottom alternately
(B) Across diagonally (C) Diagonally across the center
(1) Lock-nut
(2) Washer
(3) Seal (O-ring)
(4) Wrench for holding
(5) Hose
(6) Torque wrench for tightening
KiSC issued 03, 2010 A