MAINTENANCE
26
THE FORCE
/
1
Maintenance, Cont.
The gearbox and the airlock should be perpendicular to each other.
Proper alignment helps prevent premature wear on the gearbox/airlock
shaft connection.
Recommended gearbox oil:
Model 12007
Temperature 40˚ - 100˚ F Mobil SHC 634 gear lube
Temperatures -20˚ - +40˚ F Mobil 1 synthetic 5W-30
Worm gear case capacity 20 oz.
Model 12008
(Mfg. from 12/02 - present)
Lay machine on its side with clear access to the bottom drain plug. Place
drain pan under drain plug and remove using a 5/16 hex wrench. Drain
oil into pan, tip machine upright to drain remainder of oil in gearbox
housing, close vent plug. Pour 48 ounces into worm gear case and re-
install drain plug. Tip machine on side and open vent plug 1/4- 1/2 turn
by hand. Note: In cold temperatures the oil thickens slowing the draining
process. Leave the machine in a warm area overnight (eight hours) to
make oil changing easier. See illustration for location of vent and drain
plugs (page 22).
Recommended gearbox oil:
Model 12008
Capacity: 44 oz.
Temperature 40˚ - 100˚ F Mobil SHC 634 gear lube
Temperatures -20˚ - +40˚ F Mobil 1
synthetic 5W-30
MAINTENANCE
Drain & Fill plug
Model 12008
Vent Plug
1
⁄ 4 -
1
⁄ 2 Turn to Vent
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