Lumberjack SG900 Installation manual

SG900
Electric Paint Spray Gun
SG900
ORIGINAL INSTRUCTIONS
SAFETY AND OPERATING MANUAL

SG900
TABLE OF CONTENTS
Welcome to Lumberjack!
Dear customer, Congratulations on your purchase. Before using the
product for the first time please be sure to read these instructions for use.
They provide you with all information necessary for using the product safely and to
ensure its long service life.
Closely observe all safety information in these instructions!
General Power Tool Safety Warnings………………………………….…......01
Symbols & Cable Rating Chart ……….…………………………………….………05
Machine Details and Product Features……….…………………………….….06
Assembly……………………………………………………………………………………..08
Operation…………………………………………………………………………………..09
Cleaning……………………………………………………………………………………..13
Maintenance and Service…………………………………………………………..15
Lumberjack Guarantee………….…………………………………………………….16
Declaration of Conformity……………………………………………………………18
Parts List…………..………………………………………………………………………...19
Parts Diagram………………………………………………………………………………20

SG900 01
GENERAL POWER TOOL SAFETY WARNINGS
WARNING Read all safety warnings and
all instructions. Failure to follow the warnings
and instructions may result in electric shock, fire
and/or serious injury.
Save all warnings and instructions for
future reference. The term "power tool" in
the warnings refers to your electric (corded)
power tool or battery-operated (cordless) power
tool.
1. Work area safety
a)Keep work area clean and well lit. Cluttered
or dark areas invite accidents.
b) Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create sparks which may ignite the dust or
fumes.
c) Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
2. Electrical safety
a) Power tool plugs must match the outlet.
Never modify the plug in any way. Do not use
any adapter plugs with grounded power tools.
Unmodified plugs and matching outlets will
reduce risk of electric shock.
b) Avoid body contact with grounded surfaces,
such as pipes, radiators, ranges and
refrigerators.There is an increased risk of electric
shock if your body is grounded.
c) Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
d) Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords
increase the risk of electric shock.
e) When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of
electric shock.
f) If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD reduces the risk
of electric shock.
3. Personal safety
a) Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the influence of drugs, alcohol or medication. A
moment of inattention while operating power
tools may result in serious personal injury.
b) Use personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
c) Prevent unintentional starting. Ensure the
switch is in the off position before connecting to
power source and/or battery pack, picking up or
carrying the tool. Carrying power tools with your
finger on the switch or energising power tools that
have the switch on invites accidents.
d) Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.

SG900 02
GENERAL POWER TOOL SAFETY WARNINGS
e) Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes,
jewellery or long hair can be caught in moving
parts.
g) If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
4. Power tool use and care
a) Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
b) Do not use the power tool if the switch does
not turn it on and off. Any power tool that
cannot be controlled with the switch is
dangerous and must be repaired.
c) Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
d) Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are
dangerous in the hands of untrained users.
e) Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts and
any other condition that may affect the power
tool’s operation. If damaged, have the power tool
repaired before use. Many accidents are caused
by poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
g) Use the power tool, accessories and tool bits
etc. in accordance with these instructions, taking
into account the working conditions and the work
to be performed. Use of the power tool for
operations different from those intended could
result in a hazardous situation.
5. Service
a) Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
b) If the replacement of the supply cord is
necessary, this has to be done by the
manufacturer or its agent in order to avoid a
safety hazard.

SG900 03
GENERAL POWER TOOL SAFETY WARNINGS
6. Safety Instructions for Spray Gun
a)Do not use the product for spraying flammable
materials.
b) Be aware of any hazards presented by the
material being sprayed. Consult the markings
on the container or the information supplied by
the manufacturer of the material to be sprayed.
c) Do not spray any material where the hazard is
not known.
d) Use appropriate personal protective
equipment, such as dust mask, safety goggles,
protective gloves and ear protection.
e) Do not clean the product with flammable
solvents.
f) Never use highly flammable or corrosive
liquids. Only use paints and solvents with a flash-
point above 21°C. Ask a professional for advice.
g) Never point the product toward open flames!
h) Do not allow children to play with
theproduct. Never work near children or
animals.
i) Never manipulate the product and always use
the safety and/or protective guardson the
product to avoid risks.
j) Risk of injury: Do not direct the product
towards people or animals.
k) Never smoke during the paint process.
l) Always ensure sufficient circulation of fresh
air.
m) Never use paint containing lead.
n)Before any work (such as transport,
construction, conversion, cleaning or
maintenance) and when the product is not being
used, disconnect it from the power supply and
empty the paint container!
7. Emergency
Familiarise yourself with the use of this product
by means of this instruction manual. Memorise
the safety directions and follow them to the
letter. This will help to prevent risks and hazards.
1.Always be alert when using this product, so
that you can recognise andhandle risks early. Fast
intervention can prevent serious injury and
damage to property.
2. Switch off and disconnect from the power
supply if there are malfunctions.Have the tool
checked by a qualified professional and repaired,
ifnecessary, before you operate it again.

SG900 04
GENERAL POWER TOOL SAFETY WARNINGS
Measures to take in the event of contact with
chemicals
Skin contact: Clean with plenty of water and
soap, consult a doctor if necessary.
Eye contact: Rinse with plenty of water, consult
a doctor.
Swallowing: Do not vomit, consult a doctor
Inhalation: Fresh air, consult a doctor if
necessary

SG900 05
SYMBOLS AND POWER RATING CHART
Danger! – Read the operating
instructions to reduce the risk of
injury.
Caution! Wear safety goggles.
Caution! Wear ear defenders. The
impact of noise can cause damage
to hearing.
Caution! Risk of Injury! Do
not reach into the running
saw blade.
Caution! Wear a dust mask.
Protection class:
Double Insulated.

AIR6V 01 AIR6V 01 AIR6V 01 AIR6V 01
SG900 06
MACHINE DETAILS AND PRODUCT FEATURES
Machine Details
Specifications:
Mains Voltage -230V / 50Hz
Power– 500W
Water Flow Rate – 900ml/min
Viscosity Measuring – 100DIN-s
Nozzle Size –Ø2.0mm
Canister Capacity – 900ml
Gross Weight – 2.0kg
Nett Weight – 1.5kg
Package Contents:
Spray gun
Viscosity measuring
Nozzle cleaning needle
Cleaning brush
Nozzle tip spanner
Intended Use
This spray gun is ideal for refinishing a wide
variety of purposes. The intended use
includes the mechanical spraying of liquid,
paste or powdery substances such as paints
containing solvents or water-based paints
on components, surfaces, etc.
The product may not be used for
processing emulsion and latex paints or
chlorinated solutions.
For safety reasons it is essential to read the
entire instruction manual before first
operation and to observe all the
instructions therein.
This product is intended for private
domestic use only, not for any commercial
trade use. It must not be used for any
purposes other than those described.
Product Features
1.Spray gun unit
2.Power unit
3.Smart nozzle selector
4.Tip collar
5.Air cap
6.Nozzle
7.Y-type seal ring
8.Spray width lever
9.Spray tip
10.Spray unit housing
11.Trigger
12.Quick refill lid
13.sealing linear
14. O-ring
15. Pickup tube
16. Check valve assembly
16.1 Check valve sleeve 1
16.2 Check valve
16.3 Spring
16.4 Check valve sleeve 2
16.5 Valve extension
17. Canister
18. Flow control knob
19. Quick release lock
20. Switch trigger lever
21. Hanging hook
22. Filter
23. Filter cover
24. Viscosity cup
25. Cleaning
needle
26. Cleaning brush
27. Spray tip key

AIR6V 01 AIR6V 01 AIR6V 01 AIR6V 01
SG900 07
MACHINE DETAILS AND PRODUCT FEATURES

SG900 08
ASSEMBLY
Warning! Be sure to use appropriate protective
gear and unplug unit.
Warning! Make sure area is well ventilated and
free of flammable vapors.
Aligning the pickup tube
The pickup tube (#15) needs to be aligned in the
direction toward the front of the canister. This
will ensure you spray as much material as
possible before you need to refill.
Make sure the pickup tube is assembled tight in
place.
Attaching spray unit to spray gun handle
Align the marking line on the spray unit with the
icon of unlock, then rotate the spray gun handle
clockwise until stop. Rotate the quick release
lock (#19) and snap onto the hook on the edge
of canister lid.
Liquid material preparation
Tip: Make sure the type of material you use can be
cleaned with either mineral spirits or paint thinner
(for oil-based paints) or a warm water and soap
solution (for water soluble paints). Use drop cloths
during pouring, mixing, and viscosity testing of
materials to be sprayed to protect your floors and
anything else in the spraying area that you wish to
remain untouched
Warning!: Do not use materials with a flashpoint
higher than 60°C.
A viscosity test cup is provided to determine the
“runout time” of the material being used.
- Before measuring for the proper viscosity, stir
the material thoroughly.
- Dip the viscosity cup into the material being use
with the cup held over the material container,
measure the amount of time it takes for the liquid
stream out of the bottom of the cup (150 seconds
or less). This is the “run out time”. Refer to the
thinning table for information on the thinning
required for different materials.
The liquid being sprayed may
need to be thinned (diluted)
before starting. When thinning,
use the proper liquid thinner
recommended on the container
by the material manufacturer.

SG900 09
ASSEMBLY/OPERATION
- If material needs thinning, add the appropriate
liquid, thinning material recommended by the
manufacturer.
- It is possible to spray latex paint with this unit,
however, the required thinning may exceed
material manufacturer’s recommendation. Thin
latex paint so that it runs through viscosity cup
within150 seconds. The operator should
consider the type of application and final
location of the project when spraying a material
that requires more than 150 seconds to run
through the viscosity cup.
OPERATION
THINNING TABLE
SPRAY MATERIAL:
Clear and semi-transparent stains and sealers Oil
based primers, varnishes and polyurethane
RUNOUT TIME:
No thinning required (Less than 70Oil based
primers, second’s runout)
SPRAY MATERIAL:
Solid colour water based stains Water based or
latex paints
RUNOUT TIME:
May require thinning (More than 70 seconds
runout)
Note: Not recommended for textured paint
PREPARATION TIPS
- Always stir and strain the material thoroughly
before use.
- With any spraying job you should always ensure
that you have properly prepared the surface to get
the best finish. That is, all surfaces are free from
dust, dirt, rust and grease. Lightly pressure wash
decks or exterior surfaces and ensure that they are
dry before spraying.
- Even though HVLP sprayers have very little
overspray, it is recommended that you mask all
edges and other areas and use drop cloths to
protect your floors and anything else in the
spraying area that you wish to remain untouched.
- Skin that forms on the top of paint can clog the
sprayer. Remove skin before mixing. Strain with a
funnel with a filter attached or through hosiery
to remove any impurities that could clog system.
- Before starting have gloves, paper towels, rags
etc. available for unexpected spills.

SG900 10
OPERATION
FILLING THE CANISTER
- Check to make sure that the canister is
completely screwed onto the sprayer.
- Stand the sprayer firmly on an smooth and
horizontal surface
- Pour the properly thinned and strained
material to be sprayed into the canister.
- Clean any residual liquid from the threads or
sides of the canister and sprayer.
- Starting the threads evenly, screw the lid
completely onto the top fill canister. Check the
lid to make sure it is threaded on squarely and
completely before picking up the sprayer.
ON / OFF SWITCH
Squeeze to press the trigger (#11), trigger will
actuate the switch inside the tool by the switch
trigger lever(#20) to turn on the tool. Release
the trigger to turn off the tool.
SMART SELECT NOZZLE SELECTION
There are three spray patterns to choose from:
-Vertical Flat Jet
-Horizontal Flat Jet
-Circular Jet
To select Vertical Flat Jet , turn
the air cap (#5) to horizontal
direction by turning the smart
nozzle selector (#3) clockwise
until stop.
To select Horizontal Flat Jet, turn
the air cap(#5) to vertical
direction by turning the smart
nozzle selector (#3) anti-
clockwise until stop.

SG900 11
OPREATION
Note: Spray nozzle can only be assembled in one
direction that the notch of the nozzle(#6) must
align with the skirt on spray unit housing(#10).
Refer to Fig. for proper assembly.
Warning! Risk of injury.
Never point the sprayer at any part of the body.
Never pull the trigger while adjusting the spray
setting.
ADJUSTING WIDTH OF SPRAY PATTERN
By turning the Spray Width Lever (#8) between the
Minimum marking and Maximum marking, the
width of the spray patterns can be adjusted
accordingly.
To select Circular Jet, turn the
Spray Width Lever (#8) to the
icon of Minimum.

SG900 12
OPERATION
FLOW CONTROL KNOB
The flow control knob (#18) regulates the
amount of liquid that can be sprayed. Turning
the flow knob clockwise increases the flow of
liquid. Turning the knob counter anti-clockwise
Decreases the flow of liquid.
Tip: Always test the spray pattern on scrap
cardboard or similar material first. Begin with
flow control knob on the highest flow setting. If
less flow is desired, dial the flow control knob
anti-clockwise to decrease the flow of liquid.
Heavier, thicker materials should be sprayed
with the flow control knob on high flow setting.
Thinner materials should be sprayed with the
flow control knob on a low flow setting.
Developing the proper spraying
technique
- Practice spraying on a piece of scrap material
such as cardboard to test your spray pattern and
become familiar with the flow control feature of
the sprayer.
- Ensure surface to be sprayed is free of dust,
dirt, and grease.
- Ensure spray area is clean and free of dust
that could be blown onto newly sprayed
surfaces.
- Cover any areas not intended to be sprayed.
- Always spray from a minimum of 50mm to a
maximum of 300mm.
- A commonly used method for spraying a large
surface is the “crisscross” pattern. This is done by
spraying in horizontal strips and then crossing over
these strips with vertical strips.
- To get an even spray distribution, always keep
your arm at the same distance from the
surface you are spraying and avoid moving your
wrist.
- Maintain smooth and consistent speed which will
help avoid inconsistencies. Begin spraying
after the pass has begun and release trigger before
stopping the pass.
- Avoid spraying too heavily in any one area.
Several lighter coats are better than one heavy
coat which can lead to running and dripping.
Remember that the flow control knob regulates
the amount of liquid that can be sprayed. Turning
the flow knob clockwise increases the flow of
liquid. Turning the knob anti-clockwise decreases
the flow of liquid. If runs or drips do
occur, have a dry paint brush on hand to smooth
them out.

SG900 13
CLEANING
Warning! Be sure to use appropriate protective gear.
-Do not use materials with a flashpoint higher than
60°C ( 140°F) . Flashpoint is the temperature that a
fluid can produce enough vapors to ignite (see
coating supplier).
- Make sure clean up area is well ventilated and free
of flammable vapors.
- Always spray outdoors when spraying cleaning
solution through sprayer.
- Do not submerse power unit.
- Use drop cloths during pouring, mixing, and
viscosity testing of materials to be sprayed to
protect your floors and anything else in the spraying
area that you wish to remain untouched.
- To begin cleaning:
- Turn the power unit off and unplug the cord
- Unscrew the canister from the sprayer and
pour any remaining liquid back into the original
container .
- Pour a small amount of the appropriate
cleaning solution into the canister .
- Warm soapy water for water based materials
-Manufacturers recommended cleaning solution
for oil based materials
- Screw on the canister back to the sprayer securely
and vigorously shake the sprayer.
- Unscrew the canister and properly dispose
ofcleaning solution.
- Refill the canister with a small amount of new
cleaning solution. Screw the canister back onto
the sprayer.
-Plug in
the cord and turn on the power unit.
- Spray the cleaning solution through the
sprayer onto scrap material for 2 to 3 seconds.
- Turn the power unit off, unplug the cord
- Unscrew the canister from the sprayer.
- Remove the O-ring(#14), pickup tube(#15), check
valve (#16), and quick refill lid(#12) from the
sprayer. Clean the parts with the cleaning brush in
the appropriate cleaning solution (Fig. P).
Note: When removing the check valve, twist the
check valve clockwise and then pull it out.(Fig P
insert)
-Unscrew the tip collar (#4) and remove all the
parts of the spray nozzle(#3,#4,#5,#6,#7.#8)
from the sprayer.
Remove the spray tip(#9) from the sprayer. (Clean
all parts with the cleaning brush in the appropriate
cleaning solution.
Be sure to clean around check valve with brush.

SG900 14
CLEANING
- If using water based material, clean the
sprayer by running water through pickup tube
inlet. If using oil based materials, clean pickup
tube inlet with the appropriate cleaning solution.
Repeat until sprayer is completely clean.
-Dry all parts thoroughly.
- Properly dispose of cleaning solution.
- Place a drop of household oil into the
inside of the sprayer from the hole for
assembling the spray tip.
- Reassemble sprayer.
Note: Spray nozzle can only be assembled
in one direction that the notch of the
nozzle(#6) must align with the skirt on
spray unit housing(#10).
Note: The spray tip must be assembled in the
sprayer with the bumps on the spray tip in vertical
direction Note: Assemble the pickup tube(#15)
and check valve (#16) by firmly pushing them onto
the inlet on the sprayer.

SG900 15
MAINTENANCE/STORAGE/ACCESSORIES/PROTECTING THE ENVIRONMENT
Use only mild soap and damp cloth to clean the
power unit. Never let any liquid get inside the
power unit; never immerse any part of the
power unit into a liquid.
Important! To assure product SAFETY and
RELIABILITY, repairs, maintenance and
adjustment (other than those listed in this
manual) should be performed by authorized
service centers or other qualified service
personnel, always using identical replacement
parts.
The power unit contains 3 washable / reusable
filters(#25,#27,#30). Check the filter before and
after each use. If dirty, wash with warm water
and allow to air dry before re-installing or
replace if necessary.
- To check the filter,
-remove the filter cover (#24) by squeezing the
top and bottom sides of the filter cover and
pulling the cover off the power unit.
Remove the filter and inspect. Replace filter and
filter cover.
Important! Never operate the power unit
without the filter in place. Debris could be
sucked in and interfere with the function of the
power unit.
STORAGE
Make sure unit is clean and dry before storing. Store
unit indoors in a dry location. To prevent damage, wrap
the electrical cord so that it is not crimped during
storage.
ACCESSORIES
Recommended accessories for use with your product
are available from your local dealer or authorized
service center.
Warning! The use of any accessory not recommended
for use with this product could be hazardous.
PROTECTING THE ENVIRONMENT
Make this product available for separate collection.
environmental pollution and reduces the demand for
raw materials. Local regulations may provide for
separate collection of electrical products from the
household, at municipal waste sites or by the retailer
when you purchase a new product.
Separate collection. This product must
not be disposed of with normal day
that your product needs replacement,
or if it is of no further use to you, do
not dispose of it with householdwaste.
Separate collection of used products
and packaging allows materials to be
recycled and used again. Re-use of
recycled materials helps prevent

SG900 16
LUMBERJACK GUARANTEE
1. Guarantee
1.1 Lumberjack guarantees that for a period of
12 months from the date of purchase the
components of qualifying products (see clauses
1.2.1 to 1.2.8) will be free from defects caused
by faulty construction or manufacture.
1.2. During this period Lumberjack, will repair or
replace free of charge any parts which are
proved to be faulty in accordance with
paragraph 1.1 providing that:
1.2.1 You follow the claims procedure set out in
clause 2
1.2.2 Lumberjack and its authorised dealers are
given reasonable opportunity after receiving
notice of the claim to examine the product
1.2.3 If asked to do so by Lumberjack or its
Authorised dealer, you return the product at
your own cost to Lumberjack’s or supplying
Authorised Dealer’s premises, for the
examination to take place clearly stating
theReturns Material Authorisation number given
by Lumberjack or an Authorised Dealer.
1.2.4 The fault in question is not caused by
industrial use, accidental damage, fair wear and
tear, wilful damage, neglect, incorrect electrical
connection, misuse, or alteration or repair of the
product without approval.
1.2.5 The product has been used in a domestic
environment only
1.2.6 The fault does not relate to consumable
items such as blades, bearings, drive belts, or
other wearing parts which can reasonably be
expected to wear at different rates depending
on usage.
1.2.7 The product has not been used for hire
purposes.
1.2.8 The product has been purchased by you as
the guarantee is not transferable from a private
sale.
2. Claims Procedure
2.1 In the first instance please contact the
Authorised Dealer who supplied the product to
you. In our experience many initialproblems with
machines that are thought to be faulty due to
faulty parts are actually solved by correct setting
up or adjustment of the machine. A good
Authorised Dealer should be able to resolve the
majority of these issues much more quickly than
processing a claim under the guarantee. If a
return is requested by the Authorised Dealer or
Lumberjack, you will be provided with a Returns
Material Authorisation number which must be
clearly stated on the returned package, and any
accompanying correspondence. Failure to provide
a Returns Material Authorisation number may
result in item being refused delivery at Authorised
Dealer.
2.2 Any issues with the product resulting in a
potential claim under the guarantee must be
reported to the Authorised Dealer from which it
was purchased within 48 hours of Receipt.
2.3 If the Authorised Dealer who supplied the
product to you has been unable to satisfy your
query, any claims made under this Guarantee
should be made directly to Lumberjack. The Claim
itself should be made in a letter setting out the
date andplace of purchase, giving a brief
explanation of the problem which has led to the
claim. This letter should be then sent with proof

SG900 17
LUMBERJACK GUARANTEE
of purchase to Lumberjack. If you include a
contact number with this it will speed your claim
up.
2.4 Please note that it is essential that the letter
of claim reaches Lumberjack on the last day of
this Guarantee at the latest. Late claims will not
be considered.
3. Limitation of Liability
3.1 We only supply products for domestic and
private use. You agree not to use the product for
any commercial, business or resale purposes and
we have no liability to you for any loss of profit,
loss of business, business interruption or loss of
business opportunity.
3.2 This Guarantee does not confer any rights
other than these expressly set out above and
does not cover any claims for consequential loss
or damage. This Guarantee is offered as an extra
benefit and does not affect your statutory rights
as a consumer.
4. Notice
This Guarantee applies to all product purchased
from an Authorised Dealer of Lumberjack within
the United Kingdom. Terms of Guarantee may
vary in other countries.

SG900 18
CE DECLARATION OF CONFORMITY
TOOLSAVE
Unit C, Manders Ind. Est.,
Old Heath Road, Wolverhampton,
WV1 2RP.
Tel: [phone]
Declares that the Spray Gun(SG900)
Is in compliance with the regulations included in the Directives:2006/42/EC
EC DECLARATION OF CONFORMITY
Certificate for EC-type examination delivered by Intertek Testing Services Hangzhou,16 No. 1
Ave.,Xiasha Economic Development District,Hangzhou,310018,China. (Verification
No.:160700504HZH-V1)
Person who declares: Bill Evans
01.01.2021
The Director