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SAFETY PRECAUTIONS
SAFETY
Be careful with oils under pressure
Pressure is maintained in the hydraulic circuit long after the
engine has been shut down.
• Do not fill with, dispose of fuel/oil, or perform the in-
spection and maintenance until the internal pressure is
completely released.
• The hydraulic oil escaping from a small hole can be haz-
ardous if contacted. It is under high enough pressure to
penetrate the skin or eyes and cause serious injury. If
leak is suspected, protect your eyes and skin by wear-
ing protective glasses and thick gloves to search for a
leak. Also use a paperboard or plywood to keep your
skin from oil spurting. If oil penetrates the skin, it must
be surgically removed within a few hours by a doctor
familiar with this type of injury.
Release internal pressure before working on the
hydraulic system
Oil may spurt out if caps or filters are removed or pipes are
disconnected before releasing the pressure in the hydraulic
system.
• Gradually loosen the vent plug to release the internal
pressure of the hydraulic oil tank.
• Move all the control levers and pedals several times in all
directions to release the pressure from the circuit of the
working equipment (for link type controls).
• When removing plugs or screws, or when disconnect-
ing hoses, stand to the side and loosen them slowly to
gradually release the internal pressure before removing.
Be careful with grease under pressure
In the track adjuster, the grease has been injected under
high pressure. If the tension is adjusted without following
the prescribed procedure, the grease discharge valve may
fly off, resulting in injury.
• Loosen the grease discharge valve slowly.
• Do not put your face, arms, legs or body in front of the
grease discharge valve.
Handling of the accumulator
Be sure to handle the high-pressure nitrogen gas enclosed
in the accumulator with care according to procedure. If
handled incorrectly, it could explode and cause serious in-
jury. Strictly observe the following precautions:
• Do not disassemble.
• Do not allow flame near it or throw it into a fire.
• Do not drill, weld or fuse.
• Do not subject it to physical shock such as hitting, rolling
or dropping.
• Before disposing of the unit, the sealed gas must be
drained. Contact your sales or service dealer for help
with this.
Disconnect the battery
Disconnect the wiring from the both terminals (+ and -) on
the battery before working on the electrical system or doing
electric welding. Otherwise, short-circuit and explosion of
the battery can result.
1BAA14Z
1BAA15Z
1BAA16Z
Содержание TB 250
Страница 1: ......
Страница 3: ...1 1 SAFETY 1 Safety alert symbol 1 2 Safety precautions 1 3 Cautions when working 1 9...
Страница 36: ...2 24 2 TIGHTENING TORQUE SERVICE DATA...
Страница 37: ...2 25 2 SERVICE DATA HYDRAULIC CIRCUIT DIAGRAM HYDRAULIC CIRCUIT DIAGRAM Equipped with options 1 2...
Страница 38: ...2 26 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with options 2 2...
Страница 39: ...2 27 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with angle blade and blade oat 1 2...
Страница 40: ...2 28 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with angle blade and blade oat 2 2...
Страница 41: ...2 29 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with high ow option 1 2...
Страница 42: ...2 30 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with high ow option 2 2...
Страница 43: ...2 31 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with high ow angle blade blade oat option 1 2...
Страница 44: ...2 32 2 HYDRAULIC CIRCUIT DIAGRAM SERVICE DATA Equipped with high ow angle blade blade oat option 2 2...
Страница 46: ...2 34 2 ELECTRIC CIRCUIT DIAGRAM SERVICE DATA First auxiliary hydraulic piping with proportional control...
Страница 49: ......
Страница 59: ...2 46 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Страница 60: ...2 47 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
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Страница 73: ...2 60 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA NAME STANDARD NO...
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Страница 80: ...2 67 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Страница 81: ...2 68 2 WIRE HARNESS WIRING DIAGRAM SERVICE DATA...
Страница 92: ...3 11 3 CONTROL VALVE FUNCTION...
Страница 108: ...4 3 4 SERVICE STANDARDS DISASSEMBLY AND ASSEMBLY Clearance for pin and bushing...
Страница 130: ...4 25 4 UPPER FRAME DISASSEMBLY AND ASSEMBLY 15 Side frame R 16 Side frame L 17 Tool box 18 Cover 19 Bracket 20 Cover 2 2...
Страница 165: ...4 60 4 HYDRAULIC PUMP DISASSEMBLY AND ASSEMBLY f Remove the plug g Remove the spring and the ball...
Страница 267: ...4 162 4 SLEW MOTOR DISASSEMBLY AND ASSEMBLY Special tools Oil seal press tting jig A Collar installation jig B...
Страница 352: ...ENGINE 6 Machine model Mounted engine TB250 4TNV88...