Kubota GR1600-II Riding Mower Repair Manual

Kubota GR1600-II Mower Workshop Service Manual
Kubota Mower Model GR1600-II

Table of Content of the Mower GR1600-II Workshop Service Manual

This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of KUBOTA GR1600-II. It is divided into three parts, “General”, “Mechanism” and “Servicing”.

■ General
Information on the tractor identification, the general precautions, maintenance check list, check and maintenance and special tools are described.
■ Mechanism
Information on the construction and function are included. This part should be understood before proceeding with troubleshooting, disassembling and servicing.
■ Servicing

Information on the troubleshooting, servicing specification lists, tightening torque, checking and adjusting, disassembling and assembling, and servicing which cover procedures, precautions, factory specifications and allowable limits.

Manual Extract Valve Lapping
1. Apply compound evenly to the valve lapping surface.
2. Insert the valve into the valve guide. Lap the valve onto its seat with a valve flapper or screwdriver.
3. After lapping the valve, wash the compound away and apply oil, then repeat valve lapping with oil.
4. Apply prussian blue to the contact surface to check the seated rate. If it is less than 70 %, repeat valve lapping again.
■ IMPORTANT
When valve lapping is performed, be sure to check the valve recessing and adjust the valve clearance after assembling the valve.
Free Length and Tilt of Valve Spring
1. Measure the free length (A) of valve spring with vernier calipers. If the measurement is less than the allowable limit, replace it.
2. Put the valve spring on a surface plate, place a square on the side of the valve spring.
3. Check to see if the entire side is in contact with the square. Rotate the valve spring and measure the maximum tilt (B).
If the measurement exceeds the allowable limit, replace it.
4. Check the entire surface of the valve spring for scratches. If there is any defect, replace it.