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WIKTOR SOJKA
01 October 2018 / Published in Uncategorized

What is the travel motor shaft and what it’s used for ?

WHAT IS THE TRAVEL MOTOR  SHAFT AND WHAT IS IT FOR?

The travel motor shaft is an element of the excavator drive system. It transmits the drive directly from the piston pump to the gearbox, where it connects to the sun shaft.  We described it in another article: “What is the sun shaft of travel final drive and what it’s used for ?”. The motor shaft on its length has two types of splines. The first one (bigger) is mounted to the block of the travel motor, the second one (smaller) is the place of transferring the drive  power to the sun shaft in gearbox

HOW TO CHECK IF MOTOR SHAFT IS  DAMAGED?

The basic symptom of damage is the lack of transmission. So if we give traffic to the driving lever, we hear the driving engine’s operation, but the reducer is not working. The second symptom of driving engine damage is also grinding inside the gearings.

SOLUTION

If the damage to the drive shaft is diagnosed, replace the damaged shaft and sun shaft of gearbox. Otherwise in next half year or maybe year you will have to deal with this problem again. After replacing both shafts, looseness during changes in the driving directions of the excavator will be minimized. Device will last much longer and save time associated with dismantling the hydromotor and the purchase and replacement of parts.

What you can read next

Guide: disassembly and assembly of the driving hydromotor
Travel final drive bearing – Use for what ? Why so expensive?
Planetary gear and its application – FHU SOJKA

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