Measuring Machine Performance; Measuring Front Performance; Measuring Swivel Gear Backlash - Kubota KX080-4 Workshop Manual

KX080-4, WSM

4. MEASURING MACHINE PERFORMANCE

[1] MEASURING FRONT PERFORMANCE

(1) Measuring Swivel Gear Backlash

Purpose
• Measure the degree of overall wear in the front and replace pins and/or bushings or add shims as needed.
• When there is a great deal of play, it may cause wear in the swivel bearing teeth, swivel motor pinion gear and
front pins and bushings.
Measurement preparation
1. To make the measurements, position the machine so the arm
cylinder and bucket cylinder are fully compressed with the end
of the arm at a height of 1.0 m (40 in.) off the ground.
2. Stop the engine.
[Left play measurement]
1. Push to the right with 50 N (5.0kgf, 11 lbs) of pressure, making
that position the zero point; then press to the left with 300 N
(30 kgf, 67.4 lbs) of pressure and take a reading at that point.
2. Take three measurements, determine the average and take that
as the measured value.
[Right play measurement]
1. Push to the left with 50 N (5.0 kgf, 11 lbs) of pressure, making
that position the zero point; then press to the right with 300 N
(30 kgf, 67.4 lbs) of pressure and take a reading at that point.
2. Take three measurements, determine the average and take that
as the measured value.
(1) 1.0 m (40 in.)
(2) 50 N (5.0 kgf, 11 lbs)
1-S38
MACHINE BODY
RY9212148MBS0112US0
(3) 300 N (30 kgf, 67.4 lbs)
(4) Amount of Play
RY9212148MBS0113US0
KiSC issued 08, 2015 A