Kubota ZD28-EC User Manual

4-S1
ZD21N-EC, ZD21-EC, ZD28-EC, WSM
HYDRAULIC SYSTEM
1. TROUBLESHOOTING
W1014322
Symptom Probable Cause Solution
Reference
Page
Mower Does Not Rise • Control valve malfunctioning
• Lift cylinder damaged
• Relief valve spring damaged
• Relief valve setting pressure too low
• Hydraulic pump defective
• Oil strainer clogged
• Suction pipe loosened or broken
• Suction pipe O-ring damaged
• Insufficient transmission oil
Repair or replace
Replace
Replace
Adjust
Replace
Clean or replace
Repair or replace
Replace
Refill
4-S4
4-S5
4-S4
4-S3
2-S18
G-20
2-S15
2-S15
G-20
Mower Does Not
Lower
• Control valve malfunctioning Repair or replace 4-S3
Mower Drops by Its
Weight
• Lift cylinder worn or damaged
• Control valve malfunctioning
Replace
Replace
4-S5
4-S3
KiSC issued 09, 2006 A

Kubota ZD28-EC Specifications

General

Brand	Kubota
Model	ZD28-EC
Category	Lawn Mower
Language	English