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Note: EL3-H Models (hydraulic) - Using the lever on the jack, raise the Airtug platform up an inch or two prior to
moving the aircraft. Close the valve and pump the jack handle for "up" operation and open the valve to lower
the platform.
Aircraft Unloading:
Chock the aircraft first if necessary. Disconnect the strut strap or "J" hook
from the aircraft and secure the winch strap to the tug. Gently pull the tug away from the aircraft.
Note: EL3-H Models (hydraulic) Open the jack valve to lower the tug platform prior to unloading the aircraft.
General Maintenance
Tire Pressure:
The tire pressure can range from 30psi for lighter aircraft in the 3,000 lbs. range to
70psi for heavier aircraft up to 16,000 lbs.
Batteries:
Keep the batteries fully charged. The battery performance will diminish measurably as
the ambient air temperature drops. See additional information regarding battery maintenance at the
end of this document.
Hydrostatic Transaxle:
This should be checked for oil level. Add 20W-50 oil if level is low.
Drive Wheel Bearings:
Permanently lubricated.
Caster Zerk Fittings:
Needs to be lubed periodically to ensure ease of caster wheel steering.
Drive Chains:
Apply chain lube periodically depending on use and environment.
Tractive Ability:
If the tug seems to be losing tractive ability, itʼs an indication of a loose drive belt.
The electric motor plate is mounted on slotted holes and can be moved rearward to tighten the drive
belt if necessary. Simply loosen the nuts, push the electric motor plate towards the rear of the tug and
tighten the nuts firmly.
Assembly Instructions
Tools Needed For Assembly: Wire cutter, utility knife, 5/16" - 1/2" - 9/16" & 11/16" socket or wrench.
Assembly Note: All reference to "right" and "left" orientation is made while standing behind the tug
and looking forward.
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