HOUSING- 1085909 - Caterpillar

At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns. Remove the fill plug only when the engine is stopped, and the fill plug is cool enough to touch with your bare hand.
2. Release the pressure in the hydraulic oil tank by slowly loosening the pressure cap located on the side of the tank 3. Fasten a hoist to stick cylinder (3) as shown.4. Disconnect two hoses (2) from the stick cylinder. Put plugs in the ends of the hoses to keep dirt and debris out of the hydraulic system. Disconnect lubrication line (1) for the support pin at the head end of the stick cylinder. 5. Remove the two nuts, retaining bolt (5) and pin (4) from each end of the stick cylinder. Remove stick cylinder (3). The weight of the stick cylinder is 75 kg (165 lb). Some machines may be equipped with shims between the stick cylinder and boom at the stick cylinder-to-boom pin joint. For assembly purposes, put identification marks on the shims as to their location.6. Remove the shims (if so equipped) at the stick cylinder-to-boom pin joint. The following steps are for installation of the stick cylinder.7. Be sure the pin bores in the stick cylinder, boom and stick are clean and free of dirt prior to installation of the stick cylinder.8. Fasten a hoist to stick cylinder (3), and put it in position on the boom and stick. Be sure the pin bores in the cylinder are in alignment with the pin bores in the stick and boom.9. Put a thin coat of 5P0960 Multipurpose Grease on pins (4). Temporarily install the two pins. Do not remove the hoist from the stick cylinder at this time.
Top View Of Stick Cylinder And Boom10. Slide the stick cylinder to one side until it makes contact with the boom. Measure the total clearance between the cylinder and the boom at the pin bore. The total clearance of (a) and (b) must not be more than 1.60 mm (0.063 in). If the total clearance is less than 1.60 mm (0.063 in), the addition of shims between the stick cylinder and boom will not be required. If the total clearance is more than 1.60 mm (0.063 in), add the correct thickness of shims to obtain the necessary clearance.11. If it has been determined that shims need to be installed between the stick cylinder and boom, remove pin (4) at the head end of the cylinder. Install the shims between the stick cylinder and boom; then reinstall pin (4). 12. Install retaining bolt (5) in each pin (4). Tighten the two nuts on each retaining bolt (5) as shown in the illustration. Tighten the outside nut until the end of the bolt is 0.5 mm (0.02 in) below the outside non-mating surface of the nut. Tighten the inside nut against the outside nut.13. Check the condition of the o-ring seals in hoses (2). If the seals are damaged, use new