- #Best way to install slack adjusters driver#
- #Best way to install slack adjusters full#
- #Best way to install slack adjusters license#
But these no- or low-maintenance ASAs are exceptions to the rule when it comes to slack adjusters. and for other applications, 1 yr./unlimited miles. For linehaul applications, the LX500 ASA/brake combination is lubrication-free for 3 yr./500,000 mi. Air pressure and torque should also be verified.ĪrvinMeritor offers ASAs for all steer, drive and trailer axle brakes, including Q-Plus LX500 Extended Lube for tractor and trailer products. According to Crewson Brunner, this is one of the best ways to check the slack adjuster.
Other maintenance recommendations include measuring the stroke to ensure that ASAs are functioning properly. and a more traditional ASA that requires annual lubrication. In fact, Crewson Brunner recommends greasing ASAs at regular intervals.ĭana Spicer, which sells ASAs made by Haldex, offers units with different lubrication requirements: A no-lube version for Spicer No-Lube LMS brakes, with no lube maintenance required during the warranty period (3 yr./350,000 mi.) an ASA for low-lube LMS brakes, with lube intervals of 250,000 mi. The company first introduced this feature as Auto Grease, but changed the name to minimize the possibility that users will think no greasing at all is required. The spline is designed with a groove in the center that enables grease to flow to the S-cam when the ASA is lubed.
#Best way to install slack adjusters full#
Bendix, which makes the ASA-5 SureStroke, recommends greasing at installation and at every PM or 25,000 miles.Ĭrewson Brunner recently made Cam-Guard - which prevents the ASA from seizing to the S-cam - a standard feature on its full line of ASAs. In terms of maintenance, keeping ASAs properly lubed is of primary importance. Some also suggest adjusting ASAs at regular intervals, although overdoing this could lead to premature wear. When it comes to adjusting ASA, most manufacturers agree that at minimum this should be done at installation and when brakes are replaced.
#Best way to install slack adjusters driver#
Operated from the dash, it will hold 85 psi in the brake chamber so the driver can walk around the vehicle to check the stroke. To make this procedure easier, Bendix recently introduced the SureStroke Indicator, a “visual indicator of brake-stroke travel that allows the operator to quickly determine if air brakes are adjusted correctly.” By helping to identify problems such as worn, seized or incorrectly installed slack adjusters, the indicator can also help determine whether the ASA is at fault when the stroke isn't right, or whether the brake system itself is to blame.īendix also offers a valve (BVA-85) that aids in checking the stroke on slack adjusters.
#Best way to install slack adjusters license#
As Dana points out, the term automatic does not give you license to “install and forget.”
Manufacturers are unified in their advice that automatic slack adjusters should be checked on a regular basis, perhaps even as part of a driver's pre-trip inspection. 16, on recent NTSB slack adjuster recommendations.) Units can break or can be improperly installed, for example. With the development of automatic slack adjusters (ASAs) has come the misconception that if you install an ASA on your brake system, the stroke will be accurate from then on.
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