FILM 1205061 - Caterpillar

Safety Section
Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manuals. Failure to follow the instructions or heed the warnings could result in injury or death. Contact your Cat dealer for replacement manuals. Proper care is your responsibility.
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 g00104545
Prevent the machine from movement. Park the machine on a level surface.Attach a "Do Not Operate" warning tag to the start switch before you service or repair the equipment. These warning tags (Special Instruction, SEHS7332) are available from your Caterpillar dealer.Required Parts
Table 1
278-6714 Pilot Lines Gp Revision - 02    
Item    Qty    Part No    Description    
(1)     1     168-9759     Block    
(2)     1     285-2576     Support As    
(3)     1     296-6960     Hose As    
(4)     2     148-8378     Elbow As    
(5)     9     148-8407     Plug As    
(6)     2     148-8411     Plug    
(7)     4     8T-4121     Hard Washer    
(8)     2     8T-4136     Bolt    
(9)     2     8T-4198     Bolt    
Illustration 2 g03668957
278-6714 Pilot Lines Gp Installation Procedure
Illustration 3 g03668959
(1) 168-9759 Block (2) 285-2576 Support As (4) 148-8378 Elbow As (5) 148-8407 Plug As (6) 148-8411 Plug (7) 8T-4121 Hard Washer (8) 8T-4136 Bolt (9) 8T-4198 Bolt
Assemble valve .
Illustration 4 g03668971
(1) 168-9759 Block (2) 285-2576 Support As (3) 296-6960 Hose As (4) 148-8378 Elbow As (5) 148-8407 Plug As (6) 148-8411 Plug (7) 8T-4121 Hard Washer (8) 8T-4136 Bolt
Install valve into the pump compartment.
Connect hose assembly (3) from "PB2" to "PSA2" of the pilot manifold.