John Deere Tractor Repair Manual 720, 730 Diesel, 40, 320, 330, 420, 430, 440, more...

The John Deere Tractor Repair Manual 720, 730 Diesel, 40, 320, 330, 420, 430, 440, more... covers tractor models indicated:

• 720 Diesel
• 730 Diesel
• Series 40, 320, 330, 420, 430, 440
• Models 80, 820, 830 (Two-Cylinder Diesel models)
• Series 820, 830 (Three-Cylinder models)
• Models 435D, 440ID (Two-Cylinder Diesel models)

Note: this tractor repair manual DOES NOT include wiring diagrams.
Book Excerpt: John Deere Tractor Repair Manual 720, 730 Diesel, 40, 320, 330, 420, 430, 440, etc. FRONT SYSTEM - TRICYCLE TYPE

Tricycle type (720 and 730 diesel tractors are available with a convertible type, two-piece pedestal. The available convertible front systems include a fork mounted single front wheel, duel wheels of the conventional knuckle mounted type or dual wheels of the "Roll-O-Matic" type. Refer to Figure JD2001. The procedure for disassembling and overhauling the fork mounted or the conventional knuckle mounted front wheels is evident.

"ROLL-O-MATIC"

OVERHAUL The "Roll-O-Matic" unit can be overhauled without removing the unit from the tractor. Support front of tractor and remove wheel and hub units. Remove knuckle caps (45- Fig. JD2001C). Unbolt and remove thrust washers (25). Pull knuckle and gear units from housing and remove felt washer (21). Check the removed parts against the values which follow:

- Knuckle Bushing: Inside diameter ..... 1.8735-1.8755 - Knuckle Shaft: Outside diameter ..... 1.870-1.872

IGNITION and ELECTRICAL SYSTEM

(See Wiring Diagram on Page 69) John Deere 40, 320 and 330 series tractors are equipped with a model 1111709 Delco-Remy distributor and gasoline models use Champion H10, AC45L or Auto-Lite A7 spark plugs. Recommended spark plug for all-fuel engine is Champion J14. Electrode gap setting is 0.025.

Subject: John Deere farm tractor service, maintenance, repair. ISBN-10: 0872883590 | ISBN-13: 9780872883598