Abstract: There are two embodiments of clamping tools described which are useful in removal and installation of air brake assemblies of the type including a brake can and a brake can tube held together by means of a retention ring. One clamping tool is adapted to support the brake can and brake can tube and slowly release them against the action of a compressed wedge spring. The other clamping tool is adapted to secure and controllably release a retention ring of the type having two ends fastened together by means of a bolt and nut.

Abstract: A timing pin assembly for insertion into an aperture in the bell housing of an engine to be timed. The assembly includes a pin carried by a housing and projecting outwardly from the housing. The pin is urged to its outward position by a spring and is retractable into the housing. When the pin is in its extended position it engages a detent in the flywheel of the engine and prevents the flywheel from turning while the engine is timed.

Abstract: There are two embodiments of clamping tools described which are useful in removal and installation of air brake assemblies of the type including a brake can and a brake can tube held together by means of a retention ring. One clamping tool is adapted to support the brake can and brake can tube and slowly release them against the action of a compressed wedge spring. The other clamping tool is adapted to secure and controllably release a retention ring of the type having two ends fastened together by means of a bolt and nut.