Kubota ZD21N, ZD21, ZD28 Zero Turn Mower Repair Manual

Kubota ZD21N, ZD21, ZD28 Mower Workshop Service Manual
Kubota Mower Model ZD21N, ZD21, ZD28

Table of Content of the Mower ZD21N, ZD21, ZD28 Workshop Service Manual

This WORKSHOP MANUAL has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of ZD21N, ZD21 and ZD28 KUBOTA ZD Series Zero Turn Mower. It is divided into two parts, “MECHANISM” and “SERVICING” for each section except “ENGINE” section.

■ Mechanism
Information on the construction and function are included. This information should be understood before proceeding with troubleshooting, disassembling and servicing.
■ Servicing

The heading “GENERAL” includes general precautions, check and maintenance and special tools. Other section, there are troubleshooting, servicing specification lists, checking and adjusting, disassembling and assembling, and servicing which cover procedures, precautions, factory specifications and allowable limits.

Valve Spring Setting Load
1. Place the valve spring on a tester and compress it to the same
length it is actually compressed the engine.
2. Read the compression load on the gauge.
3. If the measurement is less than the allowable limit, replace it.