Improved 2U0259 Rubber Cover For Hoist Valves Is More Resistant To Heat And Contaminants{5136}
Usage:
All Articulated Dump Trucks Except D40D Trucks
The 2U0259 Rubber Cover, which is part of the 5U8596 and 7U1154 Hoist Valves used on all models of articulated dump trucks except the D40D, is now made from a different type of rubber. The new material is more resistant to heat and degradation due to contamination than the former material.
The part number of the cover has not changed and the improved cover is visually the same as the former one. Trucks built after August 1989 have the new cover. The parts system is also stocked with the improved cover.
Caterpillar Information System:
1990/02/12 New Mounting Bracket Improves Operation Of Hoist Cable{5136}
1990/02/12 Heavy-Duty Wiper Motor Used{7305}
1990/02/12 New Pressure Switch Used In Suspension Inhibit Circuit{7200}
1990/02/12 Move The Grease Fitting To Improve Lubricant Penetration To Suspension Frame Bearings
1990/02/12 Invert A-Frame Mounting Bolts To Obtain Correct Torque{3268,7200}
1990/02/12 Seals Can Be Added To Suspension Cylinder Bearings{7213}
1990/02/05 Serviceable Parts Now Available For Cutter Clutch {5606}
1990/02/05 New Hose Clamps Have Constant Torque {5057,7554}
1990/02/05 New Hardware Improves Hydraulic And Transmission Tank Group {5056,3177}
1990/02/05 Check Differential Pinion Bearing Retainer Bolts Whenever Transmission Is Removed {3254,3269}
1990/02/05 Steel Wear Strips Can Be Modified To Make Them Adjustable {6151}
1990/02/05 New Wider Mobil-trac System (MTS) Belt Available {4198}
1990/02/12 Use Correct Method When Installing Center Bonded Mounts{1273,5056}
1990/02/12 Longer Nipple Prevents Mud From Covering Rear Axle Housing Breather{3260}
1990/02/12 Rework Procedures For The Hydraulic Pump Bias Piston{5070}
1990/02/12 New Components Used In Positioner And Kickout Group{6107,5109,5112}
1990/02/12 New Mounting And Cylinder Group, Quick Coupler Group And Lines Group Improve Visibility{5133,5057,6129}
1990/02/12 New Mounting Bolts And Washers Used For Propel Motor{4351,7553}
1990/02/12 New Oil Cooler Gasket Has Bead On Only One Side{1378}
1990/02/12 New Exhaust Manifold Stud Available{1059}
1990/02/12 Identification Of Turbocharger And Fuel System Components{1250,1700,1052}
1990/02/12 Procedure To Charge Air Conditioner Using Receiver Dryer Sight Glass{7320,7322}
1990/02/12 Contaminated Refrigerant Can Cause Air Conditioner Failures{7320,1802,1805,7322}
1990/02/12 New Air Conditioner Thermostat Switches Used{7320}