Tramec Automatic Brake Adjuster Features:
Heavy-duty internal components with a clearance-sensing clutch that enables your brake system to adjust for
hot braking conditions. Tramec offers "Cam-Guard" which lets you keep the S-Cam spline fully lubricated
when you grease the ABA. This specially designed spline gear has a groove in the center that allows grease
to flow to the S-Cam spline, promoting longer life for the spline and the ABA. All MacLean Heavy Duty
Aftermarket kits come with a plastic hands-free installation template, clevis and clevis pin kits.
Tramec's “AUTO-CHECK” stroke indicator is permanently mounted to the ABA. It shows both the correct
setup angle and air chamber stroke without crawling under the vehicle. The ABA is correctly setup when the
“AUTO-CHECK” stroke indicator points to the “HOME” position labeled on the ABA. It is also very simple to
determine whether or not the ABA is operating properly by visually inspecting the movement of the “AUTO-
CHECK” pointer. The air chamber stroke is within specified limits, and the ABA is operating properly as long
as the stroke stays within the green area on the indicator. When the pointer strokes into the red area on the
indicator, the ABA is out of adjustment and must be replaced.
Design Features:
1. Clearance sensing adjustment
2. Adjustment completed on return stroke
3. Reduce wear clutch design
4. "Self-Centering" Lining to drum gap
5. Non handed packaging layout
6. Lift rod actuation, no external mounting bracket
7. Positive locating, easy to use pre-installation guide
8. Easy manual adjustment without component disassembly
9. Fewer part numbers required for product coverage
10. Super Heavy-Duty internal components
11.High durability gear and worm
12. Powder coating finish for long term protection
13. High integrity seal design for excellent sealing
14. "Auto-Check" stroke indicator
15. "Cam-Guard Longer life for your S-Cam splines
16. Long life adjuster system
Heavy-duty internal components with a clearance-sensing clutch that enables your brake system to adjust for
hot braking conditions. Tramec offers "Cam-Guard" which lets you keep the S-Cam spline fully lubricated
when you grease the ABA. This specially designed spline gear has a groove in the center that allows grease
to flow to the S-Cam spline, promoting longer life for the spline and the ABA. All MacLean Heavy Duty
Aftermarket kits come with a plastic hands-free installation template, clevis and clevis pin kits.
Tramec's “AUTO-CHECK” stroke indicator is permanently mounted to the ABA. It shows both the correct
setup angle and air chamber stroke without crawling under the vehicle. The ABA is correctly setup when the
“AUTO-CHECK” stroke indicator points to the “HOME” position labeled on the ABA. It is also very simple to
determine whether or not the ABA is operating properly by visually inspecting the movement of the “AUTO-
CHECK” pointer. The air chamber stroke is within specified limits, and the ABA is operating properly as long
as the stroke stays within the green area on the indicator. When the pointer strokes into the red area on the
indicator, the ABA is out of adjustment and must be replaced.
Design Features:
1. Clearance sensing adjustment
2. Adjustment completed on return stroke
3. Reduce wear clutch design
4. "Self-Centering" Lining to drum gap
5. Non handed packaging layout
6. Lift rod actuation, no external mounting bracket
7. Positive locating, easy to use pre-installation guide
8. Easy manual adjustment without component disassembly
9. Fewer part numbers required for product coverage
10. Super Heavy-Duty internal components
11.High durability gear and worm
12. Powder coating finish for long term protection
13. High integrity seal design for excellent sealing
14. "Auto-Check" stroke indicator
15. "Cam-Guard Longer life for your S-Cam splines
16. Long life adjuster system
*Tramec features the only patented reduce wear clutch in the industry.
**A two piece clevis tends to promote wear and complicate the accuracy of the Automatic Brake Adjuster.
***Tramec's simplicity has the potential to allow a fleet to specify one part number for tractors
and trailers.
**A two piece clevis tends to promote wear and complicate the accuracy of the Automatic Brake Adjuster.
***Tramec's simplicity has the potential to allow a fleet to specify one part number for tractors
and trailers.
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Tramec Automatic Brake Adjuster Comparison Chart
The only auto brake adjuster with a built in stroke indicator. "Auto Smart - Manual Simple".
The only auto brake adjuster with a built in stroke indicator. "Auto Smart - Manual Simple".
