New Retainer Ring Used To Keep Spherical Bearing In Hydraulic Cylinders{7562,7553}
Usage:
All Articulated Dump Trucks
Reports indicate the 1K6985 Retainer Ring, used to keep the 9M1328 Bearing in the ends of steering, tailgate, suspension, and tilt cylinders, can fit poorly into the retainer ring grooves. This is caused by the incorrect machining of the retainer ring grooves in some cylinders. The new 7U3321 Retainer Ring is a direct replacement for the former 1K6985 Retainer Ring in those applications. The new 7U3321 Retainer Ring will work in both correct and incorrect retainer ring grooves.
Location of the new 7U3321 Retainer Rings.
Caterpillar Information System:
1988/09/12 New Low Temperature Ring Seals Available For Parts Service Of Front And Rear Suspension Groups{7201,7213}
1988/09/05 Use Either 7C0192 Or 9X0532 Gauge For Service Replacement Of Engine Oil Pressure Gauge{7455}
1988/09/05 Electric Pump Now Used In Drum Water Spray System{8209}
1988/09/05 Trailer Axle Clearance{7050,3260}
1988/09/05 Drain Holes Added To Rear Frame To Prevent Freeze Damage{7050}
1988/09/05 New Thrust Washer Used In Six Wheel Drive Transfer Gearbox{3250}
1988/09/05 New Stabilizer Valve Group Has New Lock Valve{6505}
1988/09/05 Aerosol Dry Film Lubricant Available for Extension Sticks{0645,6502}
1988/09/05 Lists Of Duo-Cone Seals And Oil Recommendations{3258,4050,4208}
1988/09/05 Pressure Taps Added To Hoist Oil Lines Group{5083,5057}
1988/09/05 New Oil Level Gauge Used{1326}
1988/09/05 Improved Engine Exhaust Manifolds Used{1059}
1988/09/12 Use Thread Lock On Suspension Cylinder Pistons{7201,7213,7200}
1988/09/12 New Torque Converter Mounted Retarder (TCMR) Control Arrangement Changes Operation Of Retarder Indicator{3121,3120}
1988/09/12 Be Sure Drive Line Parking Brake Is Correctly Adjusted{3275}
1988/09/12 Resilient Rear Mounts Used For Hydraulic Tank{5056}
1988/09/12 Radiator Overflow Hose Rerouted To Rear Of Radiator{1353,1380}
1988/09/12 Usage Of Electronic Transmission Controls{3168}
1988/09/12 Procedure To Adjust Rotor Drive Clutch{3059}
1988/09/19 New Pitch Control Link Group Used In 3W5091 Three-Point Hitch Group{7120}
1988/09/19 Purpose Of Governor Decelerator Linkage And Its Adjustment{1265,1269,1276}
1988/09/19 Use Only 2U3371 Bulk Tubing When Replacing Brake Lines{4257,7554}
1988/09/19 New Springs Used In Upper Frame Assembly Of Driver Seat Group{7321,7324}
1988/09/19 New Heat Sinks Have Solid Diode Wires{4472}