1996/12/09 Caterpillar

Thicker 1U-9646 Pusher And 1U-9647 Pusher Make XT-3 Hose Assembly Easier{0684}

Usage:

All Models Using XT-3 Hoses

Reference: SEHS8587; Special Instruction; 8T-5120 & 8T-5130 Crimp Tool Usage On XT-3 Hose

Warranty: G

Features/Benefits

* Used to crimp permanent couplings onto XT-3 hose assemblies (new parts upgrade existing 8T-5119 and 8T-5122 Crimp Tool Groups)

* Used with 7S-1100 Hose Press Arrangement, 6V-4900 Hose Press Arrangement, and 4C-9900 Hose Press Group

* 1U-9646 Pusher replaces cancelled 8T-5119 Pusher (part of 8T-5120 Crimp Tool Group) and 1U-9647 Pusher replaces cancelled 8T-5122 Pusher (part of 8T-5130 Crimp Tool Group)

* Pushers are now thicker and provide 6.0 mm (.25 inch) more travel

* Additional travel, provided by pusher, helps prevent lock-up of press (also prevents shearing of mounting plate pins if bolster contacts sleeve)

* Former pushers can be reworked by inserting 1U-9648 Plate between original two parts of pusher (saves expense of purchasing new tooling)

Typical Pusher Assembly With additional Thickness

Typical Former Pusher Assembly (1) 2H-3764 Bolt or 4L-7124 Bolt. (2) 1U-9648 Plate.

To rework former 8T-5119 Pusher and 8T-5122 Pusher, add 1U-9648 Plate (2). Use three new 2H-3764 Bolts (1) when reworking 8T-5119 Pusher. Use three new 4L-7124 Bolts (1) when reworking 8T-5122 Pusher.

Specifications/Technical Information

Overall size of 1U-9646 Pusher - 102 x 107 x 63 mm thick (4.0 x 4.2 x 2.5 inch thick)

Overall size of 1U-9647 Pusher - 125 x 127 x 69 mm thick (4.9 x 5.0 x 2.7 inch thick)

Thickness of 1U-9648 Plate - 6.0 mm (.25 in)

Caterpillar Information System:

1996/12/09 Tooling Plates Simplify Swashplate Neutral Adjustment On Sauer Sunstrand Hydraulic Pumps; 4C-8498 Plate (42 CC Pumps - Drum Propel), 4C-9419 Plate (55 CC Pumps - Axle Propel), 127-5653 Plate, Neutral (75 CC Pumps), 127-5654 Plate, Neutral (100 CC Pum

1996/12/09 Remove And Install Threaded Glands On Hydraulic Cylinder Using 9U-7868 Spanner Wrench Group, 9U-7869 Spanner Wrench Group, Eleven Adapter Plates (See Chart B){5456,0738}

1996/12/09 Rotate Crankshaft On 3114, 3116 And 3126 Engines Using 9U-6943 Gear Shaft Housing Assembly Or 9U-7336 Gear Shaft Housing Assembly {1202,0701}

1996/12/02 New Housings Are Available In Regulator Housing Groups {1393}

1996/12/02 Improved Relay Switch Assembly Used To Provide Increased Reliability {1423}

1996/12/02 Improved Relay Switch Assembly Used To Provide Increased Reliability {1423}

1996/12/02 New Assembly Procedure For Rotate Carriage Groups {6408,6405,6460}

1996/12/02 New Drive Train Lubrication Updates {3251,3252,3253,7568,7581}

1996/12/02 Improved Relay Switch Assembly Used To Provide Increased Reliability {1423}

1996/12/02 New Front Park, Turn Lamp Is Available That Is Not Affected By Vibration {1430}

1996/12/02 Overfill Of Hydraulic Tank May Cause Oil Leakage {7479,1460}

1996/12/02 Ground Strap Relocated To Prevent Damage From Debris {7423}

1996/12/09 Use 4C-9416 Wrench Assembly To Remove Asphalt Screed Mounting Nuts{6640,0602}

1996/12/09 Electronic Control Training Aid{0713}

1996/12/09 124-0662 Impact Socket For Removing And Installing Cylinder Head Bolts{1100,0602}

1996/12/09 Use 6V-7920 Spanner Wrench To Remove And Install 5P-5813 Pinion Nut{3254,4056,0602}

1996/12/09 124-9057 Guide (Swirl) Collar Quickly Installs Valve Guides To Proper Height{1104,0701}

1996/12/09 Tools Used To Remove And Install Both Sizes Of Camshaft Bearings In 3500B Engines{1211,0701}

1996/12/16 New Procedure To Calibrate Tensioner Warning Switch {4197}

1996/12/16 Fire Extinguisher Bracket Now Used {7254,7419}

1996/12/16 Spring Force Increased On Freewheel Valve Spool In Control Valve Group For Front Wheel Drive System {4352}

1996/12/16 Retarder Lamp Now Used As Brake Lamp On Some Off-Highway Trucks {3120,3121,4280,4250}

1996/12/16 Higher Viscosity Oil Should Be Used In Certain Final Drives And Differentials {4070,0645}

1996/12/16 New Shaft Assembly Used In The Steering Gear Groups To Improve Service Life {4301,4300}