Takeuchi TB175W, Руководство по ремонту

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HYDRAULIC UNITS
SLEW MOTOR
IV-148
TB175W
Reduction Gears
Parts Judgement Criteria Treatment
Drive Gear
Housing,
Internal Gear
Planetary Gear
Needle Bearing,
Planetary Shaft
Carrier, Shaft
Shaft
Thrust Wasyer
Ball Bearing,
Roller Bearing
Collar, Oil Seal,
O-ring
• Gear tooth surfaces are pitted or separating, etc.
• Clearance with motor joint is large due to spline wear.
• Gear tooth surfaces are pitted or separating, etc.
• Gear tooth surfaces are pitted or separating, etc.
• Needle rolling surfaces are pitted or separating, etc.
• Needle and shaft rolling surfaces are pitted or separating, etc.
• Pressure marks, etc. on needle and shaft rolling surfaces.
• Bearing rotation is abnormal (abnormal noise, rotation not smooth,
etc.).
• Clearance with planetary shaft is large.
• Clearance with pinion is large due to spline wear.
• Amount of wear is great.
• Rotation is abnormal (abnormal noise, rotation not smooth, etc.).
• Flaking, separation, etc. on rolling surfaces.
• Pressure marks, etc. on rolling surfaces.
• Scratches, etc. exist which cause leaks.
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace
Anti-rebound Valve
Check Valve • Scratches in sliding portions are deep or roughness is severe.
• The clearance with the body is large.
• Scratches in sliding portions are deep or seating is uneven.
Parts Judgement Criteria Treatment
• Scratches in sliding portions are deep or roughness is severe.
• There are scratches where oil leakage occurs.
• Damaged or severely deformed.
Body
Spring, Sleeve
• Replace
• Replace
• Replace
• Replace
• Replace
• Replace