Troubleshooting - Kubota G21LD / G21HD Workshop Manual

G21LD · G21HD, WSM

1. TROUBLESHOOTING

HYDROSTATIC TRANSMISSION
Symptom
Machine Will Not
Operate in Either
Direction
Hydrostatic
Transmission is
Jerky when starting
Transmission
Overheats or Loses
Power
Machine Will Not
Stop in Neutral
Position
Noise From
Transmission
Probable Cause
Insufficient transmission fluid
Defective control linkage
Improper brake setting
Defective hydrostatic transmission
Insufficient transmission fluid
Defective control linkage
Improper brake setting
Oil strainer clogged
Transmission oil filter clogged
Air entering from suction pipe
Defective hydrostatic transmission
Insufficient transmission fluid
Defective cooling fan
Improper brake setting
Oil strainer cloggedClean
Transmission oil filter clogged
Defective charge pump
Defective hydrostatic transmission
Defective control linkage
Improper speed change rod adjustment
Improper "NEUTRAL" adjustment
Insufficient transmission fluid
Defective gear or bearing
Improper backlash between 11T bevel gear and
20T bevel gear
Improper backlash between differential pinion
and differential side gear
TRANSMISSION AND REAR AXLE
Fill oil to proper level
Repair or replace
Readjust
Replace
Fill oil to proper level
Repair or replace
Readjust
Clean
Replace
Retighten
Replace
Fill oil to proper level
Replace
Readjust
Clean
Replace
Replace
Replace
Repair or replace
Readjust
Readjust
Fill oil to proper level
Replace
Readjust
Readjust
2-S1
Reference
Solution
Page
G-7, G-34
–
3-S4
2-S13
G-7, G-34
–
3-S4
G-35
G-22
2-S13
2-S13
G-7, G-34
–
3-S4
G-35
G-22
2-S15
2-S13
–
2-S4
2-S4
G-7, G-34
2-S14
2-S25
2-S25
W1014322
KiSC issued 08, 2007 A