Dixon Black Bear ZTR 34, ZTR 44, ZTR 34 Safety And Operating Manual page 41

CARE AND MAINTENANCE
HYDROSTAT OIL MAINTENANCE PROCEDURE
Check the oil level in hydrostatic transmission oil reservoir
after every 25 hours of usage. Clean the oil reservoir cap and
the area around it prior to removal. Check the oil level. Oil
should be approximately ¼" below top of oil tank baffle.
Replenish as needed with 15W-50 Synthetic Hydrostatic Oil
or a quality SAE 20W-50 motor oil. DO NOT OVERFILL.
When checking the oil level, be very careful to keep the
reservoir clean.
Change the oil in the reservoir and hydrostat transmission oil
filter after the first 100 hours of use and then every 500
hours. Remove the filter and be sure all oil has drained from
the reservoir. Replace with a new OEM filter
(P/N 539 121763) and 15W-50 Synthetic Hydrostatic Oil or a
quality SAE 20W-50 motor oil.
¼" (6mm)
Baffle
Oil Level
—Fig. 13—
Please dispose of used oils at proper collection centers.
Protect your environment.
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