The Taskmaster 1800 PSI Electric Pressure Washer With Induction Motor TM1800 has been Skip to Manual Section Manuals. Share. + Share This Product This section is dedicated to Pressure Washer manuals & user guides which are included in the main list of categories. The page provides a catalogue ofThis tip enables the pressure to drop to approximately 250 PSI to draw chemical. Some injectors can be shut on and off or the rate of injection can also be set TASKMASTER TM1850 Electric Power Washer Replacement Parts. TASKMASTER TM1850 Owners Manual. TASKMASTER TM1850 Parts Breakdown. NOTE: We are not TASKMASTER TASKMASTER TM1850 Instructions Manual (29 pages). 1850 PSI. Brand: TASKMASTER | Category: Pressure Washer | Size: 3.85 MB