Bobcat 443 Loader Operation & Maintenance Manual 6566477 - PDF DOWNLOAD

Page 56

HYDRAULIC/HYDROSTATIC SYSTEM

A

Diesel fuel or hydraulic fluid under pressure can penetrate skin or eyes causing serious injury. Fluid leaks under pressure may not be visible. Use a piece of cardboard or wood to find leaks. Do not use your bare hand. Wear safety goggles. If fluid enters skin or eyes, get immediate medical attention. B–6596

W–2074–1285

Fluid also goes from the control valve to the port block to the hydrostatic pumps to provide charge pressure and cooling. A hydraulic filter element is installed on the right side of the loader under the operator cab [B]. This filter is used to clean the fluid in the hydrostatic transmissions. The location of the oil cooler is behind the rear door under the radiator. The oil cooler is used for cooling the fluid before it returns to the gear pump.

P–0752

C

Checking and Adding Fluid To check the fluid in the reservoir procedure:

, use the following

Put the Bobcat loader on a level surface. Lower the lift arms and tilt the Bob–Tach fully backward. Stop the engine. Open the rear door. Remove the dipstick, wipe the dipstick, insert thedipstick and recheck the fluid level [C]. B–6145

If the fluid level is not at the top mark, add the correct fluid to the reservoir until the fluid level is at the top mark on the dipstick [D]. Install the dipstick.

D

B–6149 56 of 86

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443 Bobcat Loader Operation & Maintenance Manual

Dealer Copy -- Not for Resale

B

The hydrostatic pumps are driven by a belt from the engine [B]. The gear type hydraulic pump is driven (internally by the hydrostatic pumps.) The hydraulic pump supplies fluid to the lift, tilt cylinders and the auxiliary hydraulics.


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