New Mast Hydraulic Tube Assembly Is Now Used on Certain MD6250 Rotary Drills {5057, 79NS} New Mast Hydraulic Tube Assembly Is Now Used on Certain MD6250 Rotary Drills {5057, 79NS} Caterpillar


New Mast Hydraulic Tube Assembly Is Now Used on Certain MD6250 Rotary Drills {5057, 79NS}
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New Mast Hydraulic Tube Assembly Is Now Used on Certain MD6250 Rotary Drills {5057, 79NS} [M0107204]
HYDRAULIC SYSTEM
LINES GP
Rotary Drill
MD6250 (S/N: DN7101-138; DN8101-108)

Description Of Change: New mast hydraulic tube assembly is now used on the machines listed above. The new tube assembly can withstand excess vibrations and has improved service life.

Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

Table 1
Required Parts 
Item  Qty  New Part Number  Part Name  Former Part Number 
577-0493  Tube As  558-1662 
1P-4585  Half Flange 
8T-4174  Bolt 
9X-8257  Washer 
8T-4132  Nut 
1P-4584  Half Flange 
8T-4183  Bolt 
8T-4223  Hard Washer 


Illustration 1g06431576
(1) 577-0493 Tube As
(2) 1P-4585 Half Flange
(3) 8T-4174 Bolt
(4) 9X-8257 Washer
(5) 8T-4132 Nut
(6) 1P-4584 Half Flange
(7) 8T-4183 Bolt
(8) 8T-4223 Hard Washer

Replace the former 558-1662 Tube As with the new hydraulic tube assembly (1) using the parts listed in Table 1.

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