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HYDRAULIC TANK
DISASSEMBLY AND ASSEMBLY
Inspecting the hydraulic oil tank level and
refilling
WARNING
Oil may spurt out if caps or filters are removed or pipes
are disconnected before releasing the pressure in the
hydraulic system.
• Slowly loosen the air-bleeding plug to relieve the in-
ternal pressure of the hydraulic oil tank.
• Press the air breather button to relieve the tank pres-
sure (models with air breather).
Machine setup for inspecting the hydraulic oil level
1. Start the engine and run it at low speed.
2. Fully retract the arm cylinder and bucket cylinder and
lower the bucket to the ground.
3. Stop the engine.
4. Inspect the oil level using the sight gauge (1).
At an oil temperature of about 20°C, the level in the
tank should be halfway between the upper limit (H) and
the lower limit (L). If it is below the lower limit (L), refill.
At an oil temperature of about 50 to 80°C, the level
should be near the upper limit (H).
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Summary of Contents for TB 250
Page 1: ......
Page 3: ...1 1 SAFETY 1 Safety alert symbol 1 2 Safety precautions 1 3 Cautions when working 1 9...
Page 36: ...2 24 2 TIGHTENING TORQUE SERVICE DATA...
Page 38: ...2 26 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with options 2 2...
Page 39: ...2 27 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with angle blade and blade oat 1 2...
Page 40: ...2 28 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with angle blade and blade oat 2 2...
Page 41: ...2 29 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with high ow option 1 2...
Page 42: ...2 30 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with high ow option 2 2...
Page 49: ......
Page 59: ...2 46 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Page 60: ...2 47 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Page 61: ...2 48 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Page 62: ...2 49 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Page 63: ...2 50 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
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Page 73: ...2 60 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA NAME STANDARD NO...
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Page 81: ...2 68 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Page 92: ...3 11 3 CONTROL VALVE FUNCTION...
Page 108: ...4 3 4 SERVICE STANDARDS DISASSEMBLY AND ASSEMBLY Clearance for pin and bushing...
Page 352: ...ENGINE 6 Machine model Mounted engine TB250 4TNV88...