CAT Bulldozer D6N

• Hook Winch: Freefall, Brake, Gearbox Oil– Change

Warning: Do not use EP type gear lubes in the brake section of this winch. EP lubes may prevent the brake-clutch from locking up, which, in turn causes the load to fall, resulting in property damage, personal injury, or death.

Drain the fluid from the FREEFALL section. Remove the freefall drain plug "FREEFALL DRAIN" (SAE # 6) at the bottom of the FREEFALL housing section.

Drain the oil into a suitable container.

After the fluid has drained, replace the plug "FREEFALL DRAIN".

Examine the oil for significant signs of metallic particles and/or burning. Significant signs of particles/burning could indicate that additional winch servicing is required.

Dispose of the used oil in a proper manner.

Drain the fluid from the GEARBOX section. Rotate the winch drum so that the fill/drain plug "GEARBOX FILL/DRAIN" (SAE #6) is at the bottom. Remove the plug.

Controls for proper operation of boom and hook

Warning: The Boom Stop system stops the boom winch from hauling-in when the boom is vertical, preventing overloading of key machine components. Incorrectly adjusting, or defeating the boom stop valve could result in serious equipment damage, personal injury, or even death. Its operation must be check and verified daily.

Counterweight Cylinder Bearings – Lubricate

Counterweight Hinge Pins – Lubricate

Hook and Wire Cable (Boom and Hook lines) – Inspect

Hydraulic System Oil Level – Check

Perform the daily maintenance before you mount the machine in order to operate the machine.

Cooling System Coolant Level - Check

Counterweight Cylinder Bearings - Lubricate

Counterweight Hinge Pins - Lubricate

Hydraulic System Oil Level - Check

Sheave Block Bearings - Lubricate

Warning: This inspection requires trained personnel with PPE!

Loose bolts on covers and guards

Missing bolts on covers and guards

Condition of the steps and handholds

Cleanliness of the steps and handholds

Operator compartment cleanliness

Warning: At operating temperature, the hydraulic tank is hot and under pressure. Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. Remove the filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. Remove the filler cap slowly in order to relieve pressure.

NOTICE: Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling and component containing fluids. Dispose of all fluids according to local regulations and mandates.

Steps to change the hydraulic system oil

Sign off on the bulldozer maintenance