HYDRAULIC UNITS
CYLINDERS
IV-91
TB53FR
Inspection after Assembly
No Load Operation Test
1. Place the cylinder in a horizontal position with no
load.
2. Apply gentle pressure alternately to the ports at
both ends, operating the piston rod 5 or 6 times.
3. Make sure there is no abnormality in the operat-
ing condition.
Leak Test
External Leakage
1. Apply test pressure for 3 minutes each to the
retraction side and the extension side.
2. Make sure there are no abnormalities such as
external leakage or permanent deformation, etc.
in the rod seal, the rod cover mount, or in any
welded portion.
Internal Leakage
1. Disconnect the extension side hose.
2. Apply test pressure to the retraction side for 3
minutes.
3. Measure the amount of oil that has leaked from
the extension side.
• The amount of leakage should be 1 cm
3
/ 3min
or less.
Bleeding Air from the Hydraulic Cylinder
Bleed the air out of the cylinder when the cylinder is
removed or when the hydraulic piping, etc. is discon-
nected.
1. Start the engine and let it idle for approximately
5 minutes.
2. With the engine running at slow speed, extend
and retract the cylinder 4 or 5 times.
• Move the piston rod to a position 100 mm
before the end of the stroke, being careful not
to apply any relief at all.
3. With the engine at top speed, repeat the operation
in (2), then with the engine running at slow speed,
move the piston rod to the stroke end and apply
relief.
Summary of Contents for TB53FR
Page 1: ...0 1 TB53FR...
Page 2: ...0 2 TB53FR...
Page 3: ...0 3 TB53FR...
Page 6: ...0 6 TB53FR...
Page 8: ...0 8 TB53FR...
Page 9: ...I 1 TB53FR I GENERAL...
Page 24: ...GENERAL I 16 TB53FR...
Page 25: ...I 17 TB53FR II SPECIFICATIONS II 1...
Page 53: ...II 29 TB53FR III MACHINE CONFIGURATION III 1...
Page 60: ...MACHINE CONFIGURATION DRIVE SYSTEM III 8 TB53FR...
Page 68: ...MACHINE CONFIGURATION TRAVEL SYSTEM III 16 TB53FR...
Page 74: ...MACHINE CONFIGURATION UPPER FRAME III 22 TB53FR...
Page 80: ...MACHINE CONFIGURATION CONTROL SYSTEM III 28 TB53FR...
Page 86: ...MACHINE CONFIGURATION ATTACHMENTS III 34 TB53FR...
Page 88: ...III 36 TB53FR HYDRAULIC SYSTEM MACHINE CONFIGURATION...
Page 92: ...TB53FR MACHINE CONFIGURATION ELECTRICAL SYSTEM III 40...
Page 94: ...MACHINE CONFIGURATION ELECTRICAL SYSTEM III 42 TB53FR...
Page 110: ...MACHINE CONFIGURATION INTERFERENCE PREVENTION SYSTEM III 58 TB53FR...
Page 111: ...III 59 TB53FR IV HYDRAULIC UNITS IV 1...
Page 144: ...HYDRAULIC UNITS HYDRAULIC PUMP IV 34 TB53FR...
Page 166: ...HYDRAULIC UNITS CONTROL VALVE IV 56 TB53FR...
Page 186: ...HYDRAULIC UNITS PILOT VALVE IV 76 TB53FR INSPECTION AND ADJUSTMENT IV 71 TROUBLESHOOTING IV 72...
Page 267: ...IV 157 TB53FR V TROUBLESHOOTING V 1...
Page 313: ...V 47 TB53FR VI ENGINE...
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