Laminate the troubleshooting flowchart (page 11 of the fixed manual) and hang it near your workbench.
The variable speed trigger (or dial on top) does nothing – the saw either runs at max speed constantly or won't start. Fix: Bosch Pst 52a Manual Fixed
where manuals for legacy tools can often be found by entering the specific part number from the nameplate. bosch-pt.com.au or finding compatible blade sets for your PST 52A? Repair Jigsaw Bosch PST 58 PE Laminate the troubleshooting flowchart (page 11 of the