John Deere 318 User Manual
Page 379
Section 260
STEERING AND BRAKES CHECKOUT,
OPERATION AND DIAGNOSIS
Contents
Page
Group 05—Steering And Brakes System
Checkout
Before You Start . . . . . . . . . . . . . . . . . 260-05-1
Steering System Oil Leak Check (318
and 420) . . . . . . . . . . . . . . . . . . . . . 260-05-1
Hydrostatic Steering System Check (318
and 420) . . . . . . . . . . . . . . . . . . . . . 260-05-2
Service Park Brake Check . . . . . . . . . . . 260-05-3
Turn Brake Check (318 and 420) . . . . . . 260-05-3
Operator Complaint Not Identified . . . . . . 260-05-4
Group 10—Theory of Operation
Steering Valve/System Operation
Four-Port Valve . . . . . . . . . . . . . . . . 260-10-1
Five-Port Valve . . . . . . . . . . . . . . . . . 260-10-2
Group 15—Diagnosis, Tests and Adjustments
About This Group . . . . . . . . . . . . . . . . 260-15-1
Troubleshooting Guide . . . . . . . . . . . . . 260-15-1
Hydraulic Oil Warm-up Procedure . . . . . . 260-15-4
Steering System Leakage Test . . . . . . . . 260-15-5
Steering Valve Leakage Test . . . . . . . . . 260-15-5
TM1590 (17MAY95)
260-1
316, 318 & 420 Lawn and Garden Tractors
020895
260