Gearbox Bearings; Gearbox Inspection; Gearbox Installation - TGB EST 1000 Service Manual

5-4. TRANSMISSION GEARBOX

Gearbox Bearings

NOTE: Always support gearbox housings
properly when ball bearings are removed.
Housing damages mat occur if this procedure is
not performed correctly.
▪ Check if ball bearings turn freely and smoothly.
▪ Check all bearings, bearing points, tooth
flanks and taper grooves.

Gearbox Inspection

Always verify for the following when inspecting
gearbox components:
- Gear teeth damage.
- Worn or scoured bearing surfaces.
- Rounded engagement dogs and slots.
- Worn shift fork engagement groove.
- Worn splines on shafts and shifting sleeves.

Gearbox Installation

For installation, reverse the removal procedure.
▪ Before gearbox installation check O-ring in
bearing cover if brittle, hard or damaged.
Replace if necessary.
▪ Install the keys on the output shaft.
▪ After installation refill gearbox oil.
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