Ningbo Dino-power Machinery DP-6880 User manual

NINGBO DINO-POWER MACHINERY CO., LTD.
Operating Instruction
Product Model: DP-6880 Airless sprayer for putty plaster
Please read and keep this manual. Read carefully before attempting to assemble, install, operate or
maintain the product described. Protect yourself and others by observing all safety information.
Failure to comply with instructions could result in personal injury and property damage. Retain
instruction for future reference.

NINGBO DINO-POWER MACHINERY CO., LTD.
Contents
Warning and Special Cautions....................................................................1
Introduction of contents and data ...............................................................2
Instruction for DP6880 Invert.....................................................................3
Operation.....................................................................................................4
Preparation before spraying.....................................................................4
Preparation before spraying.....................................................................6
Spraying...................................................................................................7
Procedure of releasing pressure...............................................................9
Daily Maintenance Measures ................................................................10
Spraying Technique..................................................................................10
Cleaning....................................................................................................14
Repairs ......................................................................................................15
Troubleshooting........................................................................................18
Exploded View: ........................................................................................21

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Warning and Special Cautions
1. Special cautions when operating
Never put your fingers, hands or any other parts of the body into
the spray jet.
Never point the spray gun at yourself or any other else.
Never use the spray gun without the spray tip cove.
Close the safety guard at any time, except spraying and cleaning.
Please release the pressure before repair and maintenance.
Don’t clean it with bleached water or solvent containing strong
acid and alkali.
2. Special cautions when spraying
Please operate the machine in a bright place.
Never operate the machine in a place with sparks or combustible
substances.
Never operate the machine beyond 10 seconds without paints.
Paints with glue, pellets, strong corrosive or without solvent are
prohibited.
This machine can be produced with 220V or 380V electricity.
Never pull the electric wire.
Never smoke when operating the machine.
Warning!
Don’t operate the equipment without reading the following special cautions.

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Introduction of contents and data
Model number
DP-6880 piston pump sprayer
Motor power
4HP 3000W
Voltage
380V 3 phase or 220V 1 phase
Max. flow rate
8L/min
Max. pressure
25Mpa / 250bar / 3300psi
Max. tip size
0.041”
Length of standard hose
10mm*10m /1 roll, 8mm*10m/ 1
roll , 8mm*2m / 1 roll
8mm*10m / 1 roll,
8mm*2m / 1roll
Max. length of hose
90m
Wooden case Dimension
56*67*79cm

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Instruction for DP6880 Paint Sprayer
Invert
Step 1: Input the password.
Continuously press MODE key after power on. Press the ENTER
key when U0.00 displays on the screen and press the ENTER key again
when 00 displays. Press the UP key to 00.08 after “00.00” displays and
press ENTER key for confirmation. Input the original password with UP
and DOWN key after “00” appears.
Step 2: Set the operation instruction source.
Input the password and press the UP key to adjust 00 to 02 then
press ENTER key for confirmation. Press the UP key to 02.01 after 02.00
displays and press ENTER key for confirmation. When “0” appears,
adjust 0 to 2 and confirm the adjustment, then normal operation is
available after pressed the power switch.

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Operation
Preparation before spraying
1. Tools:
Tools
Quantity
6 inch, 8inch, 10inch wrench
One each
“ + “ screwdriver
One
Brush
One
Rag
One
Electric meter
One
Electric wire within 30 meters,
25mm2
One roll
Electric pressure stabilizing device
One
2. Preparation procedure
Siphon hose and return tube should be connected correctly and screw
tightly.
Connect 15 meters high pressure hose to the outlet fitting and screw
tightly.
Connect airless spray gun to the other end of hose with two wrenches
and screw tightly.

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Make sure the prime/spray valve is set horizontal state (ON).
Inject 5-6 drops PLS oil at oil cup.
Check the voltage with a electric ammeter and make sure it’s between
220V or 380V which is permitted by machine.
Place the machine in a dry area at least 10 meters away from the
operation area.
3. When it is used for the first time
Because there is protective lubricating oil in new machine, you should
use some soapsuds to wash it when using it for the first time. Please
follow the instructions as below:
Put siphon hose in a clean water bucket added with little soapsuds.
Put return tube in a waste bucket.
Set the pressure control knob middle pressure by which the machine
could work ( don’t whirl too tight).
Set the PRIME/SPRAY VALVE horizontal.
Turn on the electricity.
Operate the machine to circulate the soapsuds until clean water flows
out from the return tube.
Turn off the electricity

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Preparation before spraying
Before spraying, make sure the paints is in harmonious proportion and is
simply filtered, otherwise unpurified paints will cause wear and tear to
the machine and reduce the machine’s lifetime. Besides, circulate the
special thinner and then spray. Please follow the instructions as below:
Put siphon hose in a bucket full of special thinner or clean water.
Put return tube in a waste bucket.
Set PRESSURE CONTROL KNOB middle pressure by which the
machine could work (Don’t whirl too tight).
Set PRIME/SPRAY VALVE horizontal.
Turn on electricity.
Let the machine work for 15-30 seconds until clean thinner flow
out of return tube.
Turn off electricity.
Set PRIME/SPRAY VALVE vertical.
Turn on electricity.

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Open safety guard.
Point the spray gun at the inside of waste bucket, pull the trigger
until clean solvent flows out, so that old solvent in paint tube and
spray gun flows out.
Close safety guard (see upper picture).
Slowly set PRESSURE CONTROL KNOB high pressure (whirl
tight).
Carefully check every component whether it leaks, in that case,
release the pressure according to the “ pressure releasing
procedure” then whirl tight where it leaks.
Spraying
Put siphon hose into painting bucket.
Put return tube into waste bucket.
Set PRESSURE CONTROL KNOB middle pressure by which the
machine could work (don’t whirl too tight).

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Set PRIME/SPRAY VALVE horizontal.
Turn on electricity.
Make the machine work until the paints flow out of return tube.
Turn off electricity.
Remove return tube into painting bucket.
Set PRIME/SPRAY VALVE vertical.
Turn on electricity.
Open safety guard.
Point spray gun at the inside of waste bucket, pull the trigger until
paints spray out so that remnants solvent flows out.
Close safety guard.
Turn off electricity.
Load spray tip cover and spray tip, whirl tight.
Turn on electricity.
Slowly set Pressure Control Knob middle pressure or high
pressure, try it somewhere else, and slowly increase paints

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pressure until paints are totally atomized, and then it can be
operated.
Procedure of releasing pressure
Close safety guard.
Turn on electricity.
Set PRESSURE CONTROL KNOB low pressure.
Open safety guard, ,reverse the spray tip nozzle by 180。
Point spray jet at the inside of paint bucket, pull the trigger release
the pressure inside the machine and the tube.
Close safety guard.
Set PRIME / SPRAY VALVE horizontal, let out all the remnants
pressure.
Warning!
Release pressure according to pressure releasing procedure, in the
course of cleaning, maintenance, repair or interruption.

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Daily Maintenance Measures
Before every operation, check whether electricity complies with
requirements.
Before every operation, inject 5-6 drops PLS oil at oil cup.
After spraying, clean thoroughly machine and component.
After cleaning, roll the soft pipe avoiding tying a knot.
In case of long-term setting aside, protective solution should be
used to circulate inside the machine, in order to prevent
component from being corroded. Finally le the machine siphon a
little lubricating oil, and inject PSL oil or #45 sewing machine oil.
Spraying Technique
The following techniques, if followed, will assure professional painting
results. Hold the gun perpendicular to the surface and always at equal
distance from the surface. Depending on the type of material, surface or

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desired spray pattern, the gun should be held at a distance of 30 to 35cm.
Move the gun either across or up and down the surface at a steady rate.
Move the gun at a consistent speed conserves material and provides even
coverage. The correct spraying speed allows full, wet coat of paint to be
applied without runs or sags. Holding the gun closer to the surface
deposits more paint on the surface and produces a narrower spray pattern.
Holding the gun farther from the surface produces a thinner coat and
wider spray pattern. If runs, sags or excessive paint occur, change to a
spray tip with a smaller orifice. If there is an insufficient amount of paint
on the surface or you desire to spray faster, a large orifice tip should be
selected.
Maintain uniform spray stroke action. Spray alternately from left to right
and right to left. Begin movement of the gun before the trigger is pulled.
Avoid arcing or holding the gun at an angle. This will result in an uneven
finish.

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Proper lapping (overlap of spray pattern) is essential to an even finish.
Lap each stroke. If you are spraying horizontally, aim at the bottom edge
of the preceding stroke, so as to lap the previous pattern by 50%.
For corner and edge, split the center of the spray pattern on the corner or
edge and spray vertically so that both adjoining sections receive
approximately even amounts of paint.
When spraying with a shield, hold it firmly against the surface. Angle the

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spray gun slightly away from the shield and toward the surface. This will
prevent paint from being forced underneath.
Shrubs next to houses should be tied back and covered with a canvas
cloth. The cloth should be removed as soon as possible. Our gun
extensions are extremely helpful in these situations. Nearby objects such
as automobiles, outdoor furniture, etc. should be moved or covered
whenever in the vicinity of a spray job. Be careful of any other
surrounding objects that could be damaged by overspray.
Practice
Be sure that the paint house is free of links and clear of objects
with sharp cutting edges.
Turn the pressure control knob counterclockwise to its to its
lowest setting.
Turn the PRIME/SPRAY valve up to its SPRAY position
Turn the pressure control knob clockwise to its highest setting.
The paint hose should stiffen as paint begins to flow through it.
Unlock the gun trigger-lock
Trigger the spray gun to bleed air out of the hose.
When paint reaches the spray tip, spray a test area to check the
spray pattern
Use the lowest pressure setting necessary to get a good spray
pattern. If the pressure is too high, the spray pattern will be too

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light. If the pressure too low, tailing will appear or the paint will
spatter out in gods rather than in a fine spray
Cleaning
Exhaust the pressure and the paints inside the machine according to
the “Pressure Releasing Procedure”.
Unload the spray tip and safety guard.
Put Siphon Hose into special thinner or clean water bucket.
Put Return Tube into waste bucket.
Set PRIME/SPRAY Valve horizontal.
Set Pressure Control Knob high pressure.
Turn ON electricity.
Circulate the solvent inside of the machine and let out the remnants
paints until clean solvent or clean water flows out of Return Tube.
Turn OFF electricity
Set PRIME/SPRAYValve vertical and open safety guard.
Turn on electricity.
Pull the trigger and make solvent or clean water wash paints pipe and
remnants paints inside the spray gun until clean solvent or clean water
sprays out.
Close safety guard.

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Load spray tip cover and open safety guard.
Reverse the spray nozzle by 180º,keep pulling the trigger for 1-2
seconds(in order to clean spray tip),then unload the spray tip and its
cover and then wash them with a brush (Take care that the spray tip
contains a white seat and spray tip holder, please keep them in good
preservation.
Wipe the overall of the machine, Paints pipe and the spray gun with a
nag containing solvent or clean water until the overall is totally clean
without any paints.
Inject 5-6 drops PLS oil at oil cup
Put the machine in a dry,sanitary and ventilatory palce.
Repairs
Before repairing, Please make sure where the fault is, otherwise,
unnecessary disassembly will severely affect the machine´s function and
greatly reduce the machine´s life. Besides, in the course of repair, Please
wear standard uniform and protective tools. Repair it in a bright and
ventilatory place, and prepare a bucket of clean solvent. Clean the
components at all times.
Introduction of components of airless spray gun:
Procedure of repairing siphon components

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Before the maintenance or repair, siphon hose and return tube should be
unloaded, and then they can be repaired or maintained. Follow the
instructions as below:
Whirl loose and unload six screws on the upper front cover with
“╋”Screwdriver.
Whirl loose and unload Return Tube with wrench.
Remove the Siphon Hose Clip, and take Siphon Hose out of the Foot
Valve Housing.
To facilitate the operation, incline the machine a little backward when
taking siphon hose out.
▲Procedure of repairing Ball Valve: Among all the components, Ball
Valve is mostly likely to get blocked up for incomplete cleaning, which
could cause abnormal operation. Therefore, it´s very important to clean
and maintain the Ball Valve. The following is the procedure of

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disassembling the Ball Valve.
Remove the whole pump with the wrench as well as Foot Ball Valve.
Carefully check and clean every part. In case of damage, it should be
replaced.
Whirl loose the Upper Ball Valve and remove it from the Piston Rod
with the wrench, check whether it is blocked up or it has any wear
and tear. Clean or replace it when necessary.
Check whether Foot Ball Valve is blocked up or has any wear and tear.
Clean or replace it when necessary.
After the cleansing of the Ball Valve, assemble it into Siphon
Components to the same sequence.
Note: When Foot Ball Valve gets blocked up, it usually couldn´t siphon.
If Foot Ball Valve works normally, please disassemble Upper Ball Valve.
Use clean soft cotton nag to clean Ball Valve. Hard Substances are
prohibited.

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Troubleshooting
General Problems and Troubleshooting
Problem
Cause
Solution
The unit will
not run.
1.The unit is not plugged in.
1. Plug the unit in.
2. Tripped breaker.
2. Reset the breaker.
3.The pressure is set too low (pressure
control knob set at minimum setting
dose not supply power to unit)
3. Turn the pressure control
knob clockwise to supply
power to the unit and increase
the pressure setting.
4.Faulty or loose wiring.
4. Inspect or take to a
authorized service center.
5.Excessive motor temperature.
5. Allow motor to cool.
The unit will
not prime.
1.The PRIME/SPRAY valve is in the
SPRAY position.
1.Rotate the PRIME/SPRAY
valve colockwise to the PIME
position.
2.Air leak in the siphon tube/suction
set.
2.Check the siphon
tube/suction set connection
and tighten or re-tape the
connection with Teflon tape.
3.The pump filter and/or inlet screen is
clogged.
3.Remove the pump filter
element and clean. Remove
the inlet screen and clean.
4.The siphon tube/suction set is
clogged.
4.Remove the siphon
tube/suction set and clean.
The unit will
not build or
maintain
pressure.
1.The spray tip is worn.
1.Replace the spray tip
following the instructions that
came with the spray gun.
2.The spray tip is too large.
2.Replace the spray tip with a
tip that has a smaller orifice
following the instructions that
came with the spray gun.
3.The pressure control knob is not set
properly.
3.Turn the pressure control
knob clockwise to increase the
pressure settings.
4.The pump filter, gun filter, or inlet
screen is clogged.
4.Remove the pump filter
element and clean. Remove
the gun filter and clean.
Remove the inlet screen and
clean.
5.Material flows from the return hose
5.Clean or replace the