SPECIFICATIONS AND MAINTENANCE
TigerCat, Hydro-Retriever 4500
Service Manual
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Change the hydraulic oil filter when the “service filter” indicator light (on the dashboard) glows.
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Service the engine air filter whenever the red flag is visible in the filter service indicator (located in the
engine compartment, on the air filter). See page 64 for more information.
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Change the engine coolant every 1500 hours of operation. Use a 50/50 mixture of water and automotive-
type anti-freeze.
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Every 1500 hours of operation, have a sample of the hydraulic oil analyzed for contamination. Change
the oil if necessary. See page 74 for more information.
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Every 1500 hours of operation, check the oil level in the scrub brush gear boxes. Add 140W gear lube if
necessary to bring oil level to 1-1/2 inches (3.8 cm) from top of gear boxes.
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ADDITIONAL MAINTENANCE ITEMS
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