Schulte SDX-117 Operator's Manual page 79

1. IMPORTANT: Check that gearboxes are filled with oil
2. Replace gear oil in all gearboxes after the first 50 hours of operation, then yearly.
3. Check gearbox oil levels frequently. Steady loss of oil will indicate damaged seals, which should be
replaced immediately to prevent ruining the gearbox. Gearbox oil should be maintained to the height of the
level plug located in the side of the gearbox.
4. Procedure for refilling a gearbox:
• Park unit on level surface
• Remove the drain plug and drain out oil.
• Reinstall drain plug
• Remove the vent plug and oil level plug from the gearboxes. Please see Figures Asm-S-0036 &
Asm-S-0036 for proper location depending upon orientation of your gearbox.
• Refill the gearbox until oil runs out the level plug hole.Gearbox capacity is approximately 1.27 qt. (1.2
L) in the input box and 1.27 qt (1.2 L) in the output box.
• Reinstall the vent plug and level plug.
• Dispose of old oil in accordance with local regulations.
5. If the fan must be removed from the gearbox, antifreeze must be added to the shaft prior to installation.
6. Gear case oil should meet the following specifications:
API Service Classifications GL 5
Military Specification MIL L 2105C
Consult the following chart for the oil viscosity recommendations:
SDX-117 11/22
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MAINTENANCE
Maintenance Section 5-3