John Deere 318 - Manual (Page 351)

Section 250
POWER TRAIN CHECKOUT, OPERATION
AND DIAGNOSIS
Contents
Page
Group 05—Power Train Checkout
Before You Start . . . . . . . . . . . . . . . . . 250-05-1
Transmission Oil Leak Check . . . . . . . . . 250-05-1
Hydrostatic Lever Friction Check . . . . . . . 250-05-1
Transmission Neutral Check . . . . . . . . . 250-05-1
Neutral Return Check . . . . . . . . . . . . . . 250-05-2
Transmission Drive Check . . . . . . . . . . . 250-05-2
Speed Reduction Check . . . . . . . . . . . . 250-05-2
Two-Speed Axle Lever Check (420) . . . . 250-05-3
Differential Lock Check (420) . . . . . . . . . 250-05-3
Operator Complaint Not Identified . . . . . . 250-05-3
Group 10—Theory of Operation
Hydrostatic Transmission Operation . . . . . 250-10-2
Group 15—Diagnosis, Tests and Adjustments
About This Group . . . . . . . . . . . . . . . . 250-15-1
Troubleshooting Guide . . . . . . . . . . . . . 250-15-1
Check Valve Debris Check . . . . . . . . . . 250-15-5
Charge Pump
Pressure Test . . . . . . . . . . . . . . . . . . 250-15-5
Suction Line Check . . . . . . . . . . . . . . 250-15-6
Charge Relief Valve
Check . . . . . . . . . . . . . . . . . . . . . . . 250-15-6
Adjustment . . . . . . . . . . . . . . . . . . . . 250-15-6
Implement Relief Valve
Pressure Test . . . . . . . . . . . . . . . . . . 250-15-7
Check . . . . . . . . . . . . . . . . . . . . . . . 250-15-7
Adjustment . . . . . . . . . . . . . . . . . . . . 250-15-7
Charge Pump Flow Test . . . . . . . . . . . . 250-15-8
Welch Plug Location Check . . . . . . . . . . 250-15-8
Hydraulic Oil Warm-Up Procedure . . . . . . 250-15-9
Steering Valve Neutral Check (318 and
420) . . . . . . . . . . . . . . . . . . . . . . . . 250-15-9
Hydrostatic Lever Friction Adjustment . . 250-15-10
Neutral Return Linkage Adjustment (Early
Models) . . . . . . . . . . . . . . . . . . . . . 250-15-10
Neutral Adjustment (Early Models) . . . . 250-15-13
Neutral and Neutral Return Linkage
Adjustment (Later Models) . . . . . . . . 250-15-14
Page
Two-Speed Axle Lever Linkage Check
(420) . . . . . . . . . . . . . . . . . . . . . . 250-15-17
Differential Lock Linkage Check (420) . . 250-15-17
TM1590 (17MAY95)
250-1
316, 318 & 420 Lawn and Garden Tractors
020895
250