CYLINDER AS-HYDRAULIC 1869004 - Caterpillar

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 any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Personal injury or death can result from improperly checking for a leak.Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death.If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.
Personal injury or death can result from sudden work tool movement.Sudden movement of the work tool can cause injury to persons near the work tool.To prevent injury or death, make sure that the area around the work tool is clear of personnel and obstructions before operating the work tool.
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
Required Parts
Table 1
533-4529 Auxiliary Control Ar (- 01)
Qty Part No. Description Media
(1) 489-2977 Front Lines Gp M0083481
(1) 490-2738 Chassis Wiring Gp M0083483
(1) 492-2069 Pilot Lines Gp M0083485
(1) 493-3205 Gear Pump and Mounting Gp M0083487
(1) 559-2856 Pump Lines Gp M0094005
(1) 533-1276 Film -
Standard Removal
(A) 489-2952 Pump Lines Gp -
Illustration 2 g06249008
View from under the hydraulic oil tank and main pump compartment
(A) 489-2952 Pump Lines GpSerial Number Identification 533-1276 Film
Caterpillar Work Tools hydraulic kits are identified with serial numbers. The serial number is printed on a film group (1). This film group should be placed on the right-hand window inside the cab.
Illustration 3 g06249014
(1) 533-1276 Film
Illustration 4 g01743196Tuning Section
Reference: M0081160, "Systems Operation", Testing and Adjusting.