CATERILLAR D4-7U BULLDOZER IN NZ
STEERING CLUTCHES
Need new brake shoes on the bands
The D4 work to remove and repair steering clutches is not as bad and above pic shows the right side once out which was working. Note the gaps between each plate against the one below right rear side. The thickness of the steering clutch disc between the face of the inner clutch drum and pressure plate is 3 7/16" which is normal and 3 5/8 " max and should not be below 31/8". Disc can be added to bring the measurement up to 3 5/8" If you look above at the top is 2 plates. Measure from the top of this plate [not the housing ] to the bottom of the last disc not the bottom housing. To do the removal process one needs access to HD gear like 65mm socket and jigs and pullers HD. To get done at a Engineering shop may cost around $NZ1000- $ 2000NZ without the parts as its time consuming
STERING 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" |
Cat spline seals need 2.
A lot of play in the end plate housing of the steering clutches but note these stay in the CAT while the steering clutches are removed. You will need to prise apart before you extract the steering clutch/bevel unit as one. Check the play in these end steering clutches plates for wear and replace. use new bolts as they are UNF and cheap.
We need to replace the bearings to the bevel gear assembly besdie the steering clutch
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 ]
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 ] [ D4-7U bulldozer latest Oct 2010 pics ] [ D4-7U bulldozer pics ] [ D4-7U bulldozer pony motor ] [ D4-7U bulldozer Birtley blade ] [ D4-7U bulldozer USA parts ] [ NZ suppliers of CAT & Komatsu parts ] [ D4-7U pony motor & add Honda starter ]
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 ]
|
Email us: