1-10
1
SAFETY
When connecting/disconnecting the hoses or
pipes
• When hydraulic hoses or pipes are connected, tighten
them once to the prescribed torque, then loosen them
slightly and retighten them to the prescribed torque.
a. Tighten the fi ttings after the installation surfaces fi t
snugly together.
b. The above procedures do not apply to fi ttings with
seal tape.
• Use two spanners, one to tighten/loosen and the other
to secure the mating hose/pipe to ensure that the hose
is not twisted.
• After connecting the hydraulic hoses or pipes, apply the
maximum working pressure fi ve or six times to check for
leakage.
• If high pressure, vibration or shock is applied to a twist-
ed hose, oil leak, hose breakage or damage to the hose
fi tting can result.
• Be sure that the hydraulic hoses are not contacting
sharp objects or each other. This could cause surface
fl aws on the hoses, resulting in breakage.
1CAA03Z
Handling of seals
• Clean the grooves for O-rings and remove any burrs.
• Be careful not to twist the O-rings. If twisted, remove it
with your fi ngertips.
• When inserting, be careful not to damage the seal.
• Handling of the fl oating seal
a. After removal, wipe all oil off the O-ring and housing
of the fl oating seal.
b. When assembling, apply a thin coating of gear oil to
the contact surface of the housing,
c. After assembly, turn the seal two or three times to get
it to fi t snugly.
• Apply grease to the lip of the oil seal.
a. This is to prevent wear from occurring upon fi rst start
up after assembly.
1CAA05Z
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1CAA04Z
CAUTIONS WHEN WORKING
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 80: ...2 67 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
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...