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Gian Businesses Index & Contractors in Levin and wellington NZ
 
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CATERILLAR D4-7U BULLDOZER IN NZ

REPLACING THE BACKEND

Clean backend bay

The D47U make sure you have a nice clean bay to work with.

We cut our own gaskets

   

 

STEERING CLUTCH INFO

Clearance between shaft & Pressure plate bush .002" -- .004"
Max allowed clearance .015"
Clutch springs outer in pounds pressure 161-178
Clutch springs inner in pounds pressure 123-136
Clutch springs inner in pounds pressure compressed 2 13/16"
Steering clutch min width 3 1/8"
Steering clutch normal width 3 7/16"
Steering clutch maximum width from face inner clutch & p.plate 3 5/8"
Steering clutch inner drum-to-shaft pressure in tonnes 20
Steering clutch lever badjustment, free play 3"

Make sure you blow air into the holes to get rid of water and oil etc

Backend already to fit into the bay. We put the drums back on before placing

  Lowering the backend into the bay. The above is going in the wrongway? Note bevel gear cog

should be in the other way as below.

The correct way installing the bevel gear. We used our Komatsu excavator to lower the bevel gear into the rear end

Note the dots must lineup

 

 

New pads on the brake shoes are fitted after we put in the backend.

If you wish to share any CatD4-7U info please send us email. We are happy to add information for you on our website especially parts comments, problems, pics of your machines ---etc & we can list your parts for sale or wanted to buy on our website [ D4-7U bulldozer Forum ad ] WE ARE ALWAYS INTERESTED IN BUYING USED CAT D4-7U PARTS ANYWHERE IN NZ.

JUST EMAIL US

More [ D4-7U work next on steering clutches 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17] [ D4-7U bulldozer latest Oct 2010 pics ] [ D4-7U bulldozer pics ] [ D4-7U backend installing ] [ D4-7U brakeshoes ] [ D4-7U bulldozer pony motor ] [ D4-7U bulldozer Birtley blade ] [ D4-7U bulldozer USA parts ] [ NZ suppliers of CAT & Komatsu parts ]

We are also suppliers of NEW Komatsu spare parts for PCs up to 4 tonne as well looking for agents to buy our [ retread truck and bus tyres ]. RUBBER EXCAVATOR TRACKS FOR SALE all models : [ RUBBER TRACKS ] [ Kiwi bulldozer parts links ]

 
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