A
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Operation & Maintenance Manual–55–
331/331E/334 Excavator
TRAVEL MOTOR
Checking Oil Level
Put the machine on a level surface with the plugs
positioned as shown (Item 1 & 2) [A].
Remove the plug (Item 1) [A]. The oil level should be at the
bottom edge of the plug hole.
Add gear lube through the hole (Item 2) [A] until oil just
begins to flow from the hole (Item 1) [A]. (See FUEL,
COOLANT AND LUBRICANT Chart, Page 81 for the
capacity and type.)
Install the plugs.
Repeat the procedure for the other side.
Draining Final Drive Case
See the SERVICE SCHEDULE, Page 35 for the correct
service interval.
Put the machine on a level surface with the plugs
positioned as shown (Item 1 & 2) [B].
Remove both plugs (Items 1 & 2) [B] and drain into a
container. Recycle or dispose of the fluid in an
environmentally safe manner.
After all the gear lube is removed, install plug (Item 1) [B].
Add gear lube to the plug hole (Item 2) [B] until the gear
lube level is at the bottom edge of the plug hole (Item 2) [B].
Install and tighten the plugs.
Repeat the procedure for the other side.
B
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