NEW D6H/R/T SYSTEMONE RELIEVED TREAD IDLER (RTI) Caterpillar


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NEW D6H/R/T SYSTEMONE RELIEVED TREAD IDLER (RTI) [PELJ1229]
UNDERCARRIAGE
IDLER GP
NEW D6H/R/T SYSTEMONE RELIEVED TREAD IDLER (RTI)
 Information Release Memo  
 
  AVS?

Undercarriage  

 

October 2010    

NEW D6H/R/T SYSTEMONE RELIEVED TREAD IDLER (RTI)

 

An improved Relieved Tread Idler is now available through the parts system. It is also being used on all current production tractors.

 Relieved Tread Idlers are available for the following specific machine models:

 Elevated Sprocket Tractors                                            D6H/R/T

 

Arrows show where the contact/wear points are

Benefits

Relieved Tread Idler:
?
RTI eliminates idler and link contact near the bushing seal; with the former CTI, this contact often resulted in dry joints due to thrust bias wear.
? Contact surfaces of the RTI and link are both hardened steel, which decreases thrust wear rate.
?
Relieved OD of the RTI reduces material packing pressure near bushing seals.

The new Relieved Tread Idlers will cancel replace the current Center Tread Idlers (CTI) currently used on D6T machines.

See Special Instructions REHS4393 for information regarding modification of idler guards/scrapers on existing machines built prior to April 2010.

Note:  Relieved Tread Idlers are not recommended for use with Double Flange Rollers.

Part Numbers

Refer to Attachment I for new part number information.

 Attachment I

 

D6H/R/T SystemOne Relieved Tread Idler

STD, XL, XW, IG, LGP

 

(Per Machine)

QUANTITY

PART NUMBER

Group

4

323-1170

Components of Group

 

 

Idler Assembly

1

323-1171

Bearing *

2

9P-2245

Shaft

1

149-2494

Collar

2

107-3945

Retainer

2

149-2495

Thrust Washer **

2

106-7691

Bolt

24

1T-0765

Washer

24

5M-2894

Seal -- Duo-Cone Group (Symmetric Seal)

2

162-7862

Toric Ring *

2

162-2166

Seal -- Retainer

2

2H-3928

Seal -- Collar

2

7J-2036

Stopper

1

9G-5664

Plug

1

6Y-0473

* Component of preceding assembly or group; quantity shown is quantity per assembly or group.

** Use (1) 9W2423 Thrust Washer and (4) 2H1190 Dowels to repair former 9G9350 Retainer Assembly.
DO NOT DRILL AND DOWEL NEW 1067691 Thrust Washer. See Special Instruction SEHS8515.

 

D6H/R/T SystemOne Relieved Tread Idler

Landfill/Special Application

STD, XL, XW, IG, LGP

 

 

(Per Machine)

QUANTITY

PART NUMBER

Group

4

351-0886

Components of Group

 

 

Idler Assembly & Bearing

1

323-1171

      Bearing *

2

9P-2245

Shaft

1

149-2494

Collar

2

167-1951

Ring

2

170-0792

Seal

2

167-1952

Retainer

2

167-1950

Thrust Washer **

2

106-7691

Bolt

24

9B-7237

Washer

24

8T-4896

Seal -- Duo-Cone Group (Symmetric Seal)

2

162-7862

Toric Ring *

2

162-2166

Seal -- Retainer

2

2H-3928

Seal -- Collar

2

7J-2036

Stopper

1

9G-5664

Plug

1

6Y-0473

* Component of preceding assembly or group; quantity shown is quantity per assembly or group.

** Use (1) 9W2423 Thrust Washer and (4) 2H1190 Dowels to repair former 9G9350 Retainer Assembly.
DO NOT DRILL AND DOWEL NEW 1067691 Thrust Washer. See Special Instruction SEHS8515.

Custom Track Service (CTS)

 Refer to Attachment II for CTS wear chart data.

Attachment II

 

D6T Relieved Tread Idler Wear Chart

Depth Gauge

%Worn

In

mm

2.12

54.0

0

2.10

53.5

4

2.08

53.0

8

2.06

52.5

12

2.04

52.0

16

2.02

51.5

20

2.00

51.0

24

1.98

50.5

28

1.96

50.0

32

1.94

49.5

36

1.92

49.0

40

1.90

48.5

44

1.88

48.0

48

1.86

47.0

52

1.84

46.5

55

1.82

46.0

58

1.80

45.5

61

1.78

45.0

64

1.76

44.5

67

1.74

44.0

70

1.72

43.5

73

1.70

43.0

76

1.68

42.5

79

1.66

42.0

82

1.64

41.5

85

1.62

41.0

88

1.60

40.5

91

1.58

40.0

94

1.56

39.5

97

1.54

39.0

100

1.52

38.5

103

1.50

38.0

106

1.48

37.5

109

1.46

37.0

112

1.44

36.5

115

1.42

36.0

118

1.40

35.5

121

 

 

Relieved Tread Idler Measurements  (No Ultrasonic)

        

Contact Information

Global Dealer Solutions Network - Parts Technical Support Team
Toll Free - North America:  1-877-228-2420
International:  (309) 266-4421
Email:  Tech_Support@Cat.com

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The information contained herein is intended for circulation only to AVSpare and dealer employees whose duties require knowledge of such reports and is intended exclusively for their information and training. Any reproduction of this release without the foregoing explanation is prohibited.

 

This IRM can be viewed and downloaded electronically from the Internet. Please refer to your marketing organization specific site for access to the Electronic Sales Library which contains all of the active IRMs and product support communication materials.

 

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PELJ1229

AVSpare?

?2010 AVSpare

Information System:

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