Instructions for compression sprayers:
1.- Change the wear parts in the pump tube, shut-off, spray lance and nozzle if your sprayer is leaking or as preventive maintenance.
2.- Unscrew the nut between spray lance and shut-off.
3.- Change gasket located between nut and shut-off.
4.- The shut-off is comprised by several pieces, remove the lower plug and replace gasket, remove plunger and replace the two o-rings and gasket. Lubricate
before assembly.
5.- Unscrew the nozzle and replace O-ring and gasket, lubricate.
6.- Remove the pump tube from the tank and replace O ring located in the upper part, lubricate before assembling.
7.- Remove screws of the pump tube, remove handle, in the lower part replace and lubricate the the piston sleeve.
Remove the antenna from the lower end of the pump tube and replace the O ring.
8.- On models 319 and 320 remove relief valve to lubricate or change the o-rings if needed.
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Instructions for dismantling the Solvents backpack sprayer model 189335:
1.- Place the sprayer in a vertical position on a flat surface. Remove the washers and lock pin "C" from the
top of the connecting rod. Remove the connecting rod from the pump tube, taking care of not losing washers and lock pins.
2.- Remove the lid and the strainer, proceed to remove the agitator.
3.- Loosen tank guide nut. Pull out pump tube.
4.- Loosen the piston holder bolt. (press its slot against the top edge of the pump handle connector and unscrew the pump tube counter-clockwise)
To check the ball valve, remove piston holder and make sure the seal is clean and in good shape if not replace it.
Take care when reassembling that the piston sleeve is placed with the cutting edge facing the piston.
7.- To reassemble the sprayer follow the previous steps in reverse.
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LUBRICATE THE PUMP TUBE
BEFORE ASSEMBLING
ATTENTION
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LUBRICATE THE PUMP TUBE BEFORE
ASSEMBLING
ATTENTION
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NOTE:
To lubricate all parts; Use
silicone-based grease.
NOTE:
To lubricate all parts; Use
silicone-based grease.