RESISTOR AS 1481517 - Caterpillar

You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.Hydraulic System
Clean/Replace Filters
Main Filter
1. Open the front access door on the right side of the machine. 2. Remove the hydraulic tank cap slowly to relieve pressure. 3. Open the front access door on the left side of the machine. 4. Remove the cap from the hydraulic filter drain valve (1). Turn the valve into the housing and allow the oil to drain. Open the air purge screw on top of housing for faster draining.5. Loosen the filter cover bolt (2). Remove the cover, screen and elements as a unit.6. Remove the cotter pin which holds the elements and the screen to the cover.7. Discard the used filter elements.8. Wash the cover and screen in clean, nonflammable solvent. Allow the parts to dry.9. Assemble the clean screen and two new filter elements to the cover. Install the cotter pin.10. Inspect the cover seal. Replace the seal if it is damaged.11. Close the air purge screw. Close the drain valve and install the cap.12. Install the cover carefully to avoid seal damage. Tighten the bolt to 81 5 N m (60 4 lb ft).Pump Case Drain Filter
Located on the side of the hydraulic tank.1. Remove the used spin-on type element and seal from filter base.2. Clean the filter base.3. Lightly oil a new seal with clean hydraulic oil and install it in the filter base.4. Install a new filter by hand. When the filter element contacts the seal, tighten 3/4 turn more.Pilot System Filter
1. Open the rear access door on the right side of the machine. 2. Remove the oil drain plug (1) at the base of the filter housing. Allow the oil to drain.3. Loosen the bolt (2) on top of the cover. Remove the cover assembly.4. Remove the used filter element (3) and clean the filter housing.5. Inspect the cover seal (4). Use a new seal if the used one is damaged. Wash the cover in clean, nonflammable solvent.6. Clean and install the filter housing drain plug.7. Install a new filter element in the housing.8. Install the cover assembly and tighten the bolt to 60 7 N m (43 5 lb ft).9. Install the hydraulic tank fill cap.10. Start the engine and operate it a few minutes. Inspect for leaks. Test the control functions for proper operation. 11. Position the machine on level ground, with the stick and bucket cylinders fully extended and the attachments lowered on a bucket equipped machine. Position the clamshell machine on level ground with the stick cylinder fully extended and the clamshell bucket open on the ground. 12. Observe the oil level. Maintain the level to the FULL mark on the sight glass. Add oil if necessary. Close and secure the access doors.Fuel System
Wash Primary Filter Element
Do not fill fuel filters with fuel before installing them. Contaminated fuel will cause accelerated wear to fuel system