While conducting a pre-trip inspection on the wheel bearings I touched the disc brake caliper and noticed movement towards and away from the brake disc. I removed the wheel and tire from the wheel hub. Then I removed the caliper from the caliper mount and noticed a rubber slide bushing had a hole in one of the rubber slide bushing. It was easy to remove the bushing from the caliper because of the wear on the bushing. When I removed the guide bolts and the guide bolt sleeves, the guide bolt sleeves easily slid out of the rubber bushings. I also noticed there was not any grease on exterior of the guide bolt sleeves. The disc brakes were installed a little over three years ago.
Worn Slide Bushing Slide Bolt and Sleeve
I located the rubber guide bushings for the Kodiak 250 Caliper at Southwest Wheel with the Kodiak part number DBCMHBSB for $ 2.66 each. I am fortunate that there is a Southwest Wheel location about 15 miles from me in Dallas. I drove to Southwest Wheel and purchased 8 rubber slide bushings so I could in replace them on all of the wheels. E-Trailer also has the rubber slide bushings with the part number K338RB for $ 3.17 each.
Comparison of Old and New Bushings
I worked on one wheel at a time. First, I removed the rubber bushing by pressing the end of a Philips screw driver on smallest flange edge of the rubber bushing which faces the side of the disc. I pushed the screw so it dimpled the bushing towards the center of the caliper slider port and pushed the bushing out.
Bushing Removal
The new bushings were a very snug fit to the guide bolt sleeve and the caliper slider port. To place a new rubber bushing in the caliper I sprayed soapy water in the caliper slider port and on the outside of the rubber bushing. Pushed the rubber bushing in the caliper slider port about ¼ to ½ inch. I then placed a screw driver through the center of the rubber bushing with a handle large enough to stay on top of the bushing. With light tapping of the screwdriver handle on the bushing the bushing was seated in the caliper slider port in about 2 seconds.
Bushing with Soap Water Bushing Installation
I greased the exterior of the guide bolt sleeve and inserted the sleeve and the guide bolt in the rubber bushing. Then I mounted the caliper on the dish brake caliper mount and torqued the bolt to 40 to 45 foot pounds as per Kodiak Disc Brake instructions. I tested for play of the caliper assembly and it was solid without any play. I mounted the wheel and tire on the wheel hub and torqued the lug nuts to 130 to 140 foot pounds.
Greased Guide Bolt Sleeve
For future preventative maintenance on the disc brakes I will check the guide bolt sleeves and rubber bushing for grease and wear on a yearly basis. I will re-grease and or replace the rubber bushings as needed.
I have attached the Kodiak Disc Brakes Manual and other related reference sheets.
Worn Slide Bushing Slide Bolt and Sleeve
I located the rubber guide bushings for the Kodiak 250 Caliper at Southwest Wheel with the Kodiak part number DBCMHBSB for $ 2.66 each. I am fortunate that there is a Southwest Wheel location about 15 miles from me in Dallas. I drove to Southwest Wheel and purchased 8 rubber slide bushings so I could in replace them on all of the wheels. E-Trailer also has the rubber slide bushings with the part number K338RB for $ 3.17 each.
Comparison of Old and New Bushings
I worked on one wheel at a time. First, I removed the rubber bushing by pressing the end of a Philips screw driver on smallest flange edge of the rubber bushing which faces the side of the disc. I pushed the screw so it dimpled the bushing towards the center of the caliper slider port and pushed the bushing out.
Bushing Removal
The new bushings were a very snug fit to the guide bolt sleeve and the caliper slider port. To place a new rubber bushing in the caliper I sprayed soapy water in the caliper slider port and on the outside of the rubber bushing. Pushed the rubber bushing in the caliper slider port about ¼ to ½ inch. I then placed a screw driver through the center of the rubber bushing with a handle large enough to stay on top of the bushing. With light tapping of the screwdriver handle on the bushing the bushing was seated in the caliper slider port in about 2 seconds.
Bushing with Soap Water Bushing Installation
I greased the exterior of the guide bolt sleeve and inserted the sleeve and the guide bolt in the rubber bushing. Then I mounted the caliper on the dish brake caliper mount and torqued the bolt to 40 to 45 foot pounds as per Kodiak Disc Brake instructions. I tested for play of the caliper assembly and it was solid without any play. I mounted the wheel and tire on the wheel hub and torqued the lug nuts to 130 to 140 foot pounds.
Greased Guide Bolt Sleeve
For future preventative maintenance on the disc brakes I will check the guide bolt sleeves and rubber bushing for grease and wear on a yearly basis. I will re-grease and or replace the rubber bushings as needed.
I have attached the Kodiak Disc Brakes Manual and other related reference sheets.
Attachments
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Caliper-Bushing-Lubrication-758-KB-10.pdf736.9 KB · Views: 14
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BEARING-RACE-and-SEAL-INFORMATION-continued-717-KB-10.pdf698.2 KB · Views: 15
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BEARING-RACE-and-SEAL-INFORMATION-827-KB-10.pdf804.9 KB · Views: 12
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250-CALIPER-Exploded-View-135-KB-21.pdf130.4 KB · Views: 10
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Trailer-Disc-Brakes-Install-Operating-Information-623-KB-6.pdf994.1 KB · Views: 11