RING 1312794 - Caterpillar

Introduction
This Special Instruction covers the installation procedure for 493-3205 Gear Pump and Mounting Gp.Safety Section
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.
Illustration 1 g00104545Prevent the machine from movement. Park the machine on a level surface.Attach a "Do Not Operate" warning tag or a similar warning tag to the start switch or to the controls before you service the equipment. These warning tags (Special Instruction, SEHS7332) are available from your Caterpillardealer.Required Parts
Table 1
Parts List for 493-3205 Gear Pump and Mounting Gp - 00
Item Qty Part No. Part Name
(1) 1 273-8315 O-Ring Seal
(2) 2 453-3454 Hard Washer
(3) 2 455-3798 Bolt
(4) 1 493-3206 Gear Pump Gp
Illustration 2 g06246168
Overview of the 493-3205 Gear Pump and Mounting Gp
Installation Procedure
Illustration 3 g06246169
(1) 273-8315 O-Ring Seal
(2) 453-3454 Hard Washer
(3) 455-3798 Bolt, 44 4 N m (32 3 lb ft)
(4) 493-3206 Gear Pump GpNote: Tighten bolts (3) to 44 4 N m (32 3 lb ft).Note: Lubricate shaft of gear pump (4) and seal (1) with hydraulic oil.
Install gear pump (4) as shown.
Illustration 4 g00687600
Check for leaks.