Baroness LM551, Service Manual, Page: 43 / 213

Hydraulic Hose
Hydraulic hoses may become severely worn if
they are subjected to weathering, sun or
chemicals, if they are stored in extremely hot
warehouses, or if they are handled roughly
during operations or maintenance. They may
result in premature damage or deterioration.
Hydraulic hoses are more sensitive to exterior
conditions than other parts, so inspect them for
damage or deterioration according to the
maintenance schedule.
When replacing hydraulic hoses, check that
they are straight (no twists) before loosening
the hose.
Use two spanners when replacing hydraulic
hoses. Start by supporting the hose in the
specified position using the first spanner. Next,
use the second spanner to tighten the hose
swivel nut to the coupling.
vuy27z-001
Hydraulic Hose_001
Hydraulic Fitting
Bite Type Tube Fitting
Preliminary tightening (Preset)
Cut the tube at the designated length at a
right angle.
w7s31b-001
Bite Type Tube Fitting_001
1.
Remove burrs on the inside and outside of
the tube with a file or the like, and clean.
w7s31b-002
Bite Type Tube Fitting_002
Insert the nut and sleeve into the tube.
Note the direction of the sleeve.
1
2
w7s31b-003
Bite Type Tube Fitting_003
1 Sleeve
2 Nut
A
B
w7s31b-011
Bite Type Tube Fitting_004
A Correct installation orientation
B Incorrect installation orientation
2.
3.
Hydraulic System
LM551
Hydraulic System
Page 4-5
General Inspection and Repair