Graco ToughTek F680e, Instructions Manual

Page: 20 / 54

Spray
Spray Spray Spray
Prevent Prevent Prevent Pack Pack Pack---out out out
To avoid “packing out” the pump or hose:
• Use the lowest pressure and largest nozzle size
that provides an acceptable spray pattern. This will
also result in seals and wear parts lasting much
longer.
• Do not use any more fluid hose than is necessary.
• Use an applicator with a rubber tip retainer that will
blow off if it plugs.
Before Before
Before Starting
Starting
Starting or
or
or Stopping
Stopping
Stopping Material
Material
Material
Flow Flow
Flow
• Always have the atomizing air turned on at the
applicator (see Applicator manual 3A3244) before
and after spraying.
NOTE: NOTE: NOTE: If ball valve kit (17J703) has been installed,
do NOT use the valve to stall the pump. The pump
must be stopped first before the ball valve can be
closed.
Before Before
Before Starting
Starting
Starting Material
Material
Material Flow
Flow
Flow
1. Always open and adjust the air ball valve (CB)
first.
2. Next, switch the pump control switch (AA) to ON.
Before Before Before Stopping Stopping Stopping Material Material Material Flow Flow Flow
1. Always switch the pump control switch (AA) to
OFF first.
2. Turn off the air ball valve (CB) last.
Sprayer Sprayer Sprayer Performance Performance Performance
NOTE: NOTE: NOTE: The check valve (46) helps to improve pump
performance with highly compressible gypsum based
materials. For high density, Portland cement based
materials, the check valve (46) can be replaced with
1–1/2 NPT Nipple Fitting (121441) to reduce pressure
drop and improve performance.
Spraying Spraying Spraying
1. Mix the Material, page 19 .
2. Prime with Material, page 19 .
NOTICE NOTICE NOTICE
• Do not allow pump to run without material
in the hopper. It can cause damage to the
pump seals.
• To prevent material curing in system, never
load material into a dry system. Always
prime system with water first. Loading
material into a dry system will cause the
material to stick to internal components
and cure causing damage and requiring
replacement of those parts.
• Failure to flush prior to material curing in the
system will result in damage to system and
may require replacement of all system parts
in contact with the material.
3. Open air ball valve (CB) on spray pole applicator.
See Applicator manual 3A3244.
4. Turn hydraulic pressure control (S)
counterclockwise to lowest pressure.
(-)
WWLL DD
5. Verify that the main power disconnect (DD) is
ON.
WWLL DD
20 3A3110K