Bush Hog RMB 1865 Maintenance, Hydraulic System, Hydraulic Hoses, Oil Supply, Suction strainer

MAINTENANCE

HYDRAULIC SYSTEM

Oil Supply

Check the oil level in the reservoir daily.

No fixed time period can be quoted for oil changes as operating conditions and maintenance standards vary so widely. Burnt and scorched oil odors and the oil darkening and thickening are all signs of oxidation and indicate the oil should be changed.

Moisture which results from condensation can become entrapped in the oil and cannot be removed by filtration so that contamination is a progressive factor.

Contamination can be reduced by:

1.Cleaning off around the reservoir cap before removal, and keeping that area clean.

2.Using clean containers when replenishing the system.

3.Regular servicing of the filtration system.

Filtration Maintenance

A 125-micron suction strainer and a low-pressure 10-micron full flow return line filter protect the machine.

Suction strainer

The strainer is permanently fixed within the reservoir.

Should symptoms of pump cavitation or spongy intermittent operation occur the tank must be drained and flushed out with a suitable cleaning agent e.g. clean diesel oil.

Return Line Filter

The elements should be changed after the first 50 hours and thereafter at 500-hour intervals. It is important to note hours worked as if the filter becomes blocked an internal by-pass within the canister will operate and no symptoms of filter malfunction will occur to jog your memory.

HYDRAULIC HOSES

The condition of all hoses should be carefully checked during routine service of the machine. Hoses that have been chafed or damaged on their outer casing should be securely wrapped with waterproof adhesive tape to stop the metal braid from rusting. Hoses that have been suffered damage to the metal braid should be changed at the earliest opportunity.

RMB 1866 11/10 Maintenance Section 5-3

© 2010 Alamo Group Inc.

MAINTENANCE