Case CX230D Crawler Excavator Repair Manual

Manuals: Service Manual
Introduction
Engine
Hydraulics System
Frames and Ballasting
Tracks and Track Suspension
Cab Climate Control
Electrical System
Booms, dippers and buckets
Platform, cab, bodywork and decals
Special Tools Index
Hydraulic Schematics
Electrical Schematics
Manual Extract: Idler gear – Inspect
1. Inspect the idle gear.
NOTE: Inspect the idle gears for tooth contact, peeling and pitching.
2. Measure the idle gear shaft (1) using the micrometer.
Specified value: 39.959 – 39.980 mm (1.573 1.574 in) Outside diameter of idle gear A Specified value: 29.959 – 29.980 mm (1.1795 1.1803 in) Outside diameter of idle gear shaft B and C
3. Measure the idle gear using the cylinder gauge.
NOTE: Measure the bush inner diameter of each idle gear.
4. Calculate the clearance from the measured value.
Specified value: 0.025 – 0.066 mm (0.001 0.003 in) Idle gear A
Specified value: 0.020 – 0.062 mm (0.0008 0.0024 in) Idle gear B and C
NOTE: The difference between the inner diameter of the idle gear bush and the outer diameter of the idle gear shaft is the clearance.