JLG 1850SJ Operation And Safety Manual page 165

2. Swing Gearbox
Lube Point(s) - Fill Plug
Capacity - 3 qt. (2.8 L)
Lube - GL-5
Interval - Check level every 150 hrs/Change every 1200
hours of operation. Fill to cover ring gear.
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SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
3. Wheel Drive Hub
Lube Point(s) - Level/Fill Plug
Capacity - 2.6 quarts (2.5 liters) ± 10%
Interval - Check level every 3 months or 150 hrs of operation;
change every 2 years or 1200 hours of operation
– JLG Lift – 7-13