1997/01/20 Caterpillar

Cab Rear Window Improvements Provide Improved Sealing And Visibility {7301,7310}

Usage:

Challenger 65D (2ZJ1965-Up),
Challenger 75C (4KK1765-Up),
Challenger 75D (5AR),
Challenger 85C (9TK1765-Up),
Challenger 85D (4GR) Agricultural Tractors

Description of Change: The 117-6149 Glass (rear) has been changed to improve sealing and visibility. The framing around the glass opening has been modified at the top to allow for improved visibility in this area. The framing also has added clearance for the window hinge bolts. The former design was susceptible to possible interference of the framing and the hinge bolts which could cause poor sealing.

Adaptable To: The framing changes to improve visibility and eliminate possible interference were effective with Challenger 65D (2ZJ2324 except 2ZJ2334), Challenger 75D (5AR231 except 5AR248), and Challenger 85D (4GR337 except 4GR338-340,346) Agricultural Tractors.

Caterpillar Information System:

1997/01/13 Quickly And Accurately Set Valve Lash{1105,0766}

1997/01/13 Use 125-9622 Seal Installer To Install 118-9163 Seal In Water Pumps{1361,0708}

1997/01/13 Piston Ring Groove Gauges To Quickly And Accurately Determine Reusability Of Pistons{1214,0763}

1997/01/13 Use 126-1023 Stem Pusher For Sleeve And Coupling Removal On Hose Assemblies{5057,0684}

1997/01/13 More Collets Now Available For XT5 And XT6 Hoses Using 4C-9480 Hose Tooling Group{0684}

1997/01/13 Fixture Assembly Allows More Accurate Levelling Of Screed Plates{6643,0764}

1997/01/13 129-7142 Lifting Beam Simplifies Removal And Installation Of Friction Group{6605,0632,0717}

1997/01/13 Use 126-6611 Seal Driver To Install Outboard Oil Seal On Eccentric Group{6605,6606,0727}

1997/01/13 Spanner Wrenches And Related Tools To Remove And Install Final Drive Bearing Locknut{4050,0602}

1997/01/13 Use 125-4634 Spanner Wrench Assembly To Remove And Install 110-5425 Nut Retaining Axle Shaft Into Housing{3250,0727}

1997/01/13 1U-9058 Hose Group Provides All Necessary Equipment For Adjusting And Releasing Tension On Mobile-Trac Belts{4197,0766}

1997/01/13 1U-9054 Driver Lifter Removes And Installs Rear Drive Wheel Assembly Using Overhead Lifting Equipment{4199,0729}

1997/01/20 Adjustment To Window Hold Back Latch Improves Operation {7301,7310}

1997/01/20 Special Edition, SEPD0325, "Major Improvements And Service Information For 768C, 772B, 776C, 776D Tractors, 771C, 771D, 775B, 775D Quarry Trucks And 769C, 769D, 773B, 773D, 777C And 777D Trucks" Is Available {0374}

1997/01/20 "E-Trim" Unit Fuel Injectors {1290}

1997/01/20 Modification Of Electronic Control Module (ECM) Controlled Variable Speed Fan Clutch Bracket-Shaft Assembly For Easier Fan Speed Sensor Removal {1359}

1997/01/20 New Ether Starting Aid Groups Include Flexible Hose Assemblies Instead Of Tube Assemblies {1456}

1997/01/20 Increased Tightening Specification Improves Retention Of Thrust Washer Screws In Final Drive {4051}

1997/01/20 New Check Valve Group And Larger O-ring For Load Monitoring System Eliminates O-ring Interference {5067,7200}

1997/01/20 Improved Bearings Used In Output Transfer Gear Group {3159}

1997/01/20 Dump Body Mounted Mud Deflectors (Mud Flaps) Are Available To Prevent Mud From Being Thrown On The Back Of The Tractor {4220}

1997/01/20 A Port Now Provided In The Engine Oil Filter Group For Scheduled Oil Sampling (S.0.S.) {7542,1306,1051}

1997/01/20 VIMS-PC Service Tool Operating System Environment Answers {7601}

1997/01/20 Methods Of Obtaining Engine Flash Files {1902}