TROUBLE SHOOTING
Loss of pressure.
1.Check all sealing washers (20)
2.Check pump sealing “O” ring (59)
3.Check decompression valve (62) for free action; if it appears
to be binding in the housing, tap the filler funnel (17) round
to adjust, and/or replace the decompression valve “O”
ring (63). If any parts are worn or damaged, they should be
replaced immediately
Piston rises after pumping.
Replace footlvave (60). This is accessed by removing retaining
plug (14) and spring (13).
Difficulty in pumping.
1.Check piston “O” ring (58) and lubricate or
replace as necessary.
2.Check footvalve assembly for condition (13, 14, &
60).
Poor spray pattern.
1.For either version, make sure the pressure in the container
is up to that recommended by your product supplier; increase
by further pumping if necessary.
2.Carpet version: Remove nozzle nut (49)
to access spray nozzle tip (50) and nozzle strainer (75).
Check that tip orifice and strainer mesh are clear. Clean
both in water if you are using a water based product, or
clean product if you are using spirit / solvent based product
or replace as necessary.
2.Upholstery version: Remove nozzle retaining
nut (G009), to access nozzle strainer (N004) and spray nozzle
tip (N*) . Check that tip orifice and nozzle strainer mesh
are clear. Clean both in water if you are using a water
based product, or clean product if you are using spirit
/ solvent based product or replace as necessary. When re-assembling
the nozzle components, be sure to install the valve seat
(G008) with it’s smaller diameter facing the valve
body (G017), or the spray gun will not shut off.
General Nozzle Care. If the spray pattern deteriorates
and a blocked nozzle tip is suspected, only use a wooden
or plastic bristle. DO NOT TRY TO UNBLOCK IT WITH ANYTHING
METAL, SUCH AS A NEEDLE OR PIN because you will damage the
orifice and render the tip useless.
|
