Doosan DX300LC Excavator Main Case Assemble Guide

This instruction show you guide on how to assemble main case for Doosan DX300LC excavator.

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Procedures:
Cleaning Casing and Other Parts
Steam clean case and other parts, to remove any foreign substances.
• Cleaning fluid: PK6540 (alkali)
• Liquid density: 3 - 5%
• Liquid temperature: 60° - 70˚C (140° - 158°F)

Assembly of Shaft and Pinion
1. Insertion of shaft subassembly:2020 Doosan Excavator Workshop Manual
A. Set gear case as shown in Figure 55.
B. Using a suitable lifting device, lower shaft subassembly into case.
C. Using special jig, keep bearing level and press it into case

2. Remove bearing insertion jig and assemble plate with its step part so it is facing down, as shown in Figure 59.

3. Install lock ring in groove of gear case.
NOTE: Make sure lock ring is inserted completely into groove.

4. Insert collar on shaft, making sure it is properly seated.
Install pinion gear and special jig on shaft, and press collar and pinion gear into place on shaft and case.www.car-auto-repair.com

5. Install lock plate and drilled head bolts on end of shaft.
NOTE: Coat bolts with Loctite #262.
NOTE: Torque bolts to 2,700 kg•cm (195 ft lb).
 

6. Use lock wire to hold drilled head bolts in final position.