1998/12/07 Caterpillar


Improved Clamps Eliminate Suction Line Leaks {5057,7554}

Usage:


D25D (1HK),
D30D (3AJ),
D40D (2JJ),
D350D (9RF),
D400D (8TF),
D350E (9LR),
D400E (2YR) Articulated Trucks

Description of Change: A new clamp is now used on the suction line to eliminate leaks.

Adaptable To: The new 8T-4985 Hose Clamps (two per truck) are direct replacements for the former 5U-5094 Hose Clamps. This change to the 123-7880 Pump Lines Group is effective with D25D (1HK727), D30D (3AJ435), D350E (9LR682) and D400E (2YR1105) Articulated Trucks and is adaptable to all earlier machines, including the D40D (2JJ1-UP), D350D (9RF1-UP) and D400D (8TF1-UP) Articulated Trucks. The former 5U-5094 Hose Clamps are also still available to service these earlier machines.


Illustration 1.
Typical example. 123-7880 Pump Lines Group. Arrows depict new 8T-4985 Hose Clamps.


Illustration 2.
8T-4985 Clamp. Dimension A = 6.35 mm (.250 in) when tightened to a torque of 11 N·m (8.1 lb ft).

Caterpillar Information System:

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1998/11/30 Proper Flushing And Charging Of Air Conditioner Refrigerant System {7320}
1998/11/30 Final Drive Duo-Cone Ring Seals Improved {4052,4050}
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1998/12/07 Revised Special Instruction, SEHS8433-04, "Repair Of Wheel And Track Loader Lift Arms And Levers" Available {0374,6107,6116,6119}
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1998/12/07 New Remanufactured Water Pump Groups Available {1361}
1998/12/07 Identification Of External Terminals On Alternators {1405,1406,1400}
1998/12/07 Use 131-5050 DataView Group And 131-5051 DataView Portable TechStation Group For Accurate Diagnostics {1000,3000,4000,5000,6000,0788}
1998/12/07 Use 9U-5968 Hydrostatic Filter Group To Filter Contaminanted Oil {5050,5095,3030,3080}
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1998/12/07 New 146-4080 Digital Multimeter Available For Troubleshooting Electronic Circuits {0115}
1998/12/07 Use 149-5138 Mechanical Push/Puller For Extra Force In General Purpose Applications {0700}
1998/12/07 Use 150-1782 Crossblock For 8B-7548 Push Puller
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