Lemmer 3033, 4222, 4233, 6530, 6552 Owner's Manual

PNEUMATIC AIRLESS PUMP

OWNER'S MANUAL

3033
4222
4233

28048
28064
35032
48046

6530

6552
11018
11032

35032
38032
48046

34020

2028U

WARNING..Read all instructions carefully before assembling components and operating system. Incorrect procedure
could result in damage to the unit, severe personal injury and/or property damage. When spraying flammable materials,
electric devices must be placed at least 20 feet from target in a well-ventilated area. Vapours can be ignited by static
discharge or electrical sparks and result in severe personal injury. LEMMER airless sprayers generate high fluid pressure.
Improper use could result in an injection injury.

CALGARY • TORONTO • MONTRÉAL

1

TABLE OFCONTENTS

SAFETY PRECAUTIONS ...................................................................... 3 & 4

PRODUCT SPECIFICATIONS .....................................................................5

TECHNICAL SPECIFICATIONS...................................................................5

HOW PNEUMATIC PUMPS OPERATE .......................................................5

PUMP COMPONENTS:

SPRAY GUN ...................................................................................6

AIR MOTOR ....................................................................................6

FLUID PUMP...................................................................................6

PRESSURE REGULATOR .............................................................6

DUMP VALVE (IF EQUIPPED) .......................................................6

COATINGS ...................................................................................................6

SETTING UP OF UNIT .................................................................................7

ZIP TIP INFORMATION:

TO CLEAN PLUGGED TIP .............................................................8

TO CHANGE ZIP TIPS....................................................................8

TO CHANGE SEAL ASSEMBLY.....................................................8

HOW TO SELECT TIP SIZE AND PROPER FILTER...................................9

STARTUP PROCEDURE:

UNIT PRIMING AND FLUSHING ..................................................10

PRIMING UNIT IN PAINT..............................................................10

TO TURN UNIT OFF .....................................................................10

AIRLESS SPRAYING METHODS:

PAINTING AND TIP SELECTION .................................................10

SPRAY PAINTING METHOD........................................................10

HELPFUL HINTS FOR TROUBLE FREE PAINTING:

PUMP ............................................................................................11

PAINT ............................................................................................11

SPRAY TIPS .................................................................................11

FILTERS........................................................................................11

PAINT HOSE.................................................................................11

LUBRICATING CHAMBER OIL.....................................................11

STATIC CHARGE .........................................................................11

CLEANING INSTRUCTIONS............................................................. 12 & 13

ACCESSORIES FOR LEMMER AIRLESS EQUIPMENT...........................14

OTHER QUALITY LEMMER PRODUCTS..................................................15

TROUBLESHOOTING ....................................................................... 16 & 17

L-65 PARTS DIAGRAM & PARTS LIST .....................................................18

L-65 SPRAY GUN OVERHAUL & L-50 PARTS DIAGRAM........................19

(PUMP PARTS LISTS & DIAGRAMS ARE IN SEPARATE BOOKLETS).

DISTRIBUTION CENTRES ACROSS CANADA ........................................20

LEMMER PAINT SPRAYING EQUIPMENT LIMITED WARRANTY ..........20

2

SAFETY PRECAUTIONS

WARNING

1) Injection hazard: Airless Painting Equipment can

cause serious injury if the spray penetrates the
skin. Do not point the gun at anyone or any part of
the body. The tip guard provides some protection
against accidental injection injuries, but is mostly a
warning device. Never put your hand, fingers or
body over the spray tip. Gloves and clothing do not
necessarily offer any protection either. Keep the
gun trigger safety lever in locked postion when not
spraying. Always have the tip guard in place while
spraying.

In case of penetration seek medical aid immediately!
Note to physician: Injection into skin is a serious
traumatic injury. It is important to treat the injury
surgically as soon as possible. Do not delay treat­ment to research toxicity. Toxicity is a concern with
some exotic coatings injected into the bloodstream.
Consultation with a plastic surgeon or reconstructive
hand surgeon may be advisable. Be prepared to tell
the doctor what fluid was injected.

2) This system is capable of producing high pressure.

To avoid rupture and injury, do not operate this pump
with components rated less than the pump's maximum
attainable pressure (including but not limited to spray
guns, hose and hose connections).

3) Do not spray paints or other inflammable fluids
indoors which have a flash point below 21 degree C, 70

degree F. Keep spray area well ventilated. Before
spraying, turn off all pilot lights and open flames.

4) Wear a respirator which is approved for the product
being sprayed.

5) Do not use halogenated hydrocarbon solvents in this
system; it contains aluminium parts and may explode.
Cleaning agents, coatings, paints, and adhesives may
contain halogenated hydrocarbon solvents. Don't take
chances, consult your material supplier to be sure. (ex:
methylene chloride and 1,1,1 - Trichlorethane)

6) Caution: When a flammable liquid is sprayed there may
be danger of fire or explosion especially in a closed

area.

7) Caution: Static electricity can be developed by airless

spraying. Ground unit and object to be sprayed. Static
explosion can occur with ungrounded unit.

8) Flush system with spray tip removed. Always use
lowest pressure possible.

9) Always follow safety precautions and warnings printed
on paint container.

10) Only use spray guns and hoses supplied by Lemmer.

User assumes all risk and liability when using spray guns
or hoses not complying with minimum specification and
safety devices of Lemmer Spray Systems Ltd.

11) Inspect hoses before each use. Never use a damaged
hose. High pressure in hoses with wear, leaks or splits
may cause the hose to rupture and cause serious
personal injury. Never try to stop or deflect leaks with any
part of your body.

12) Use extreme caution when cleaning spray tip guard.
DO NOT try to wipe off build up around the spray tip

before following shut down procedure. Follow the Shut
down Procedure, then follow the spray tip manufacturer’s
instructions for removing and cleaning the spray tip.

13) Never attempt to change spray tip or leave the unit
unattended without first shutting off pump, releasing fluid
pressure, and locking the trigger safety lock.

14) Use extreme caution when changing spray tip. Follow
the Shut down Procedure, then follow the spray tip
manufacturer’s instructions for changing the spray tip.

HIGH PRESSURE!

INJECTION HAZARD!

Toujours avoir la garde en place pour peindre.

En cas d’accident, demander immédiatement des soins médicaux.
Note au médicin: La pénétration de peinture dans la peau peut causer
de graves blessures. Il est important de traîter la blessure à la
chirurgie aussitôt possible. Ne pas retarder le traitement pour
rechercher la toxicité. La toxicité peut avoir de graves conséquences
quand certains enduits exotiques son injectés directement dans le
systéme sanguin. Une consultation avec un chirurgien spécialisant en
reconstruction de mains serait conseillable. Soyez prêts à décrire au
médecin quel liquide a été injecté.

2) Ce système peut produire une pression très élevée. Afin d’éviter des

ruptures et des blessures, ne pas utiliser ce système avec des éléments
dont la pression nominale de service est inférieure à la pression maximale
que la pompe peut atteindre (ceci s'applique, toutefois sans être limité, au
pistolet, boyau et aux raccords).

3) Ne jamais pulvériser à l’interieur un produit inflammable qui a un point
éclair inférieur à 21 degrés C,70 degrés F. L’endroit où vous peinturez doit
toujours être bien aéré. Avant de pulvériser s’assurer qu’il n’y a aucune
flamme ou pilot (veilleuse) de fournaise en marche dans l’appartement.

4) Servez-vous d’un masque respiratoire qui est certifié pour le produit que
vous pulvérisez.

5) Ne pas utiliser de solvants contenant des hydrocarbures halogénés

avec ce matériel. Il contient des particules d'aluminium et peut exploser. Les
agents de nettoyage, enduits, peintures et, adhésifs, peuvent contenir des
solvants contenant des hydrocarbures halogénés. Soyez prudents;
consultez votre fournisseur pour les informations nécessaires. (ex:
méthylène chloride and 1,1,1 - Trichloréthane)

6) Attention: La pulvérisaton d'un liquide inflammable peut entraîner un
risque d'incendie ou d'explosion, surtout dans les espaces fermés.

7) Attention: La pression du produit que l’on pulvérise peut produire une
charge électrostatique. Mettre le matériel et l'objet à pulvériser à la terre.

Des décharges d'électricité statique peuvent se produire si le matériel n'est
pas mis à la terre.

8) Retirer l'embout de pulvérisation avant de rincer le matériel tout en
utilisant une pression aussi basse que possible.

9) Toujours prendre les précautions nécessaires et observer toutes les
consignes de sécurité figurant sur le pot de peinture.

10) N'utiliser que les pulvérisateurs et les tuyaux flexibles fournis par
Lemmer. Les personnes qui utilisent des pulvérisateurs et des tuyaux

flexibles non conformes aux standards d'utilisation et de sécurité minimum
du fabricant de la pompe le font à leurs propres risques et seront les seuls
responsables.

11) Examiner soigneusement le tuyau avant de s'en servir. Il ne faut jamais
utiliser un tuyau endommagé ou avec des fentes. Un tuyau à haute pression
qui n'est pas en bon état représente un serieux danger de blessure à la
personne en cas de crevaison soudaine. Il ne faut jamais essayer d'arrêter
des fuites de liquide avec n'importe quelle partie de votre corps.

12) Il est nécessaire d'exercer beaucoup de précaution pendant le
nettoyage de la protection de la buse. Ne jamais essayer d'enlever la

peinture qui aurait pu s'accumuler sur la buse avant d'avoir suivi les
consignes de sécurité concernant le nettoyage et le remplacement de la
buse.

13) Ne jamais essayer de changer la buse ou laisser l'appareil sans surveillance
avant d'arrêter le moteur, couper la pression et verrouiller la gâchette du
pistolet.

14) Le remplacement d'une buse doit être fait avec beaucoup de
précaution. Référez-vous au PROCÉDÉ D'ENTRETIEN.

1) Risque d’injection de peinture: Le matériel de

pulvérisation sans air peut entraîner de graves blessures
s’il y a pénétration de la peau par la peinture. Ne jamais
pointer le pistolet vers une personne ou vers soi-même.
La garde de la buse limite le risque de blessures
accidentelles par injection mais constitue principalement
un élément de mise-en-garde. Ne jamais mettre la main,
les doigts ou toutes parties du corps contre la buse. Le
port de gants et de vêtements n'est pas nécessairement
une forme de protection non plus.Laisser le cran de sureté
du pistolet en position fermée quand il nést pas utilisé.

ATTENTION

3

SAFETY PRECAUTIONS

16) Do not pull on hoses to move equipment, DO NOT kink or bend
the hose sharply.

17) Keep children or anyone not familiar with airless spray
systems away from equipment and work area.

18) Conductive metal containers must be used when
flushing flammable fluids through the system. Always

flush at low pressure with spray tip removed. A metal part
of the spray gun must be held firmly against the grounded
metal pail when flushing or relieving pressure from the
gun.

19) Trigger guard helps reduce the risk of accidentally
triggering the gun if dropped or bumped. Do not use a spray gun

without a trigger guard.

16) Il ne faut jamais essayer de déplacer l'appareil en tirant sur le

tuyau. Il faut aussi éviter tout tortillement du tuyau.

17) Les enfants et le personnes n'ayant aucune
expérience avec ce genre de pulvérisateur doivent êtres
gardés à l'écart de l'appareil et du chantier de travail.

18) Quand on décharge des liquides inflammables il
faut utiliser des pots conducteurs en métal. Quand on

relâche la pression avec le pistolet, une partie métallique
du pistolet doit être en contact avec le pot en métal muni
de mise à la terre.

19) La protection de la gâchette réduit le risque
d'activement involontaire si on laisse tomber le pistolet ou s'il est
frappé par accident. Ne jamais utiliser le pistolet sans la

protection de gâchette.

20) Shut Down Procedure
Always follow Shut Down Procedure before starting any
troubleshooting, servicing or cleaning.

1) Engage the trigger safety lock in the locked position. Test the

trigger safety lock to ensure the lock is working properly.

2) Turn pressure regulator to minimum.

3) Disconnect air supply.

4) Open the dump valve to relieve pressure. Leave open until

ready to spray or test or clean.

5) Remove the spray tip.

6) Disengage the trigger safety lock.

7) Trigger the gun into a metal pail to relieve any remaining

pressure. A metal part of the spray gun should be held firmly
against the grounded metal pail when relieving the pressure from
the gun. (A grounded metal pail is not required for non-flammables
such as latex.)

8) Reset the trigger safety lock to locked position.

20) Procédé à suivre avant tout travail d'entretien ou de
nettoyage.

1) Bloquer la gâchette avec le levier de verrouillage.

2) Réduire le régulateur de pression au minimum.

3) Couper l'arrivée d'air.

4) Ouvrir la vanne de mise à l'air libre pour relâcher la pression.

Gardez-la ouverte jusqu'au moment où vous êtes prêts à utiliser
l'appareil.

5) Enlever la buse.

6) Débloquer le levier de verrouillage de la gâchette.

7) Relâcher le reste de la pression en déchargeant avec le

pistolet dans un pot en métal. Quand on relâche la pression, une
partie métallique du pistolet doit être en contact avec le pot en
métal muni de mise à la terre. (Il n'est pas nécessaire d'utiliser un
pot avec mise à la terre pour des produits non inflammables,
comme par exemple le latex).

8) Ramener le levier de verrouillage en position bloquée.

4

PRODUCT SPECIFICATIONS

INTRODUCTION:

We appreciate your decision to purchase a Lemmer high
quality professional paint spraying system and believe
you will find it to be the best sprayer you ever owned.

Your Lemmer airless paint pump is capable of spraying a
wide variety of lacquer, some epoxies, industrial finishes,
latex, oil-based and alkyd paints, as well as stains,
preservatives and other architectural coatings. The
material you are spraying will have a direct effect on the
amount of pressure required for the optimum pattern and
coverage to be obtained. We recommend that before
actually beginning your job, you carefully read this manual
and practice with the sprayer until you feel comfortable
using it.

HOW PNEUMATIC PUMPS OPERATE:

A pneumatic high pressure pump consists of a reciprocat­ing air motor and a fluid pump. Its speed and pressure
are controled by air regulator. The pressure ratio (pump
ratio) of the high pressure pump is determined by the
square area of the air motor piston versus the square
area of the piston in the fluid pump. The pumps maximum
possible output pressure is determined by multiplying the
ratio by the compressed air pressure fed into the air
motor.
Example:

Pump ratio..................................................................14:1

Air pressure reading at air motor control................. 71 psi

Max. fluid pressure (14 x 71)................................. 995 psi

The Lemmer pneumatic sprayers are powerful and
versatile enough to be used in a variety of setups (pail/
cart/wall mount), and with a variety of accessories (extra
lengths of hose, extensions, pressure feed rollers, etc. as
shown on page 16.) to make them even more versatile
systems. Ask your supplier about the recommended
accessories for your particular job.

The air is connected to the air motor of the pump. First,
the pump is primed, then the pressure is set (lets say at
3000 PSI for spraying latex). When the paint pressure
reaches 3000 PSI in the hose, the paint pump parts
(including air motor) stop moving. This is the stall posi­tion. Now, when the gun trigger is pulled and the paint
pressure begins to drop, the air motor and paint pump
immediately begin to work to maintain spraying pressure.

PUMP TYPE:

These units are AIR POWERED DOUBLE ACTION
PISTON PUMPS. Top quality parts keep maintenance to

The results are minimal air consumption, excellent trig­ger-paint pressure response, minimum fan fluctuations,
and minimal all-around wear!

a minimum. All paint valves are made of tungsten car­bide and stainless steel for extra long abrasion resist­ance. The advantages of this type of pump is:

- Accurate spray pattern with minimal overspray

- Minimal or no thinning of paint products

- Pumps straight out of original paint container

- Variable pressure

- Various nozzles are available for slow to fast spraying

- Quiet running & and stops when spraying stops

- Steady spraying pressure - minimal fan fluctuations

- Safe for hazardous locations - no electricity

TECHNICAL SPECIFICATIONS

max approx. air volume air motor paint pump maximum
free output max consupt'n at at max upper lower max. tip free
flow per recm'd 100 psi, at recm'd cycles piston piston piston piston size using air paint paint flow bare

Pump model ratio gpm fl.oz. per min. cycles (cfm) gpm gallon mm mm mm mm viscosity (male) (female) (male) liter/min lbs (kg)

**”P” Series standard high pressure**
P2900 30:1 0.8 0.43 90 7 0.3 298 70 50 13 18 .019 3/8" 1/2" 1/2" BSP 2.9 15 (7)
Barrel P. 12:1 1.0 1.42 95 7 0.6 154 70 50 18 25 .035 1/2" F M36x2 1/2" BSP 4 25 (11)

pump volume cycle cycles max. recm'd cycles per dia. stroke dia. dia. suitable inlet inlet outlet volume weight

**”WIWA” Series standard high ratio**
3032 32:1 0.8 0.52 85 7 0.3 248 85 42 15 21.5 .019 3/8" M12X1.0 3/8" 3.0 13 (6)
3514 14:1 0.9 0.71 70 4 0.4 179 70 43 18 25 .021 3/8" M25X1.0 3/8" 3.5 13 (6)
4032 32:1 1.1 0.92 70 11 0.5 139 85 75 15 21.5 .023 3/8" M25X1.0 3/8" 4.0 15 (7)
6034 34:1 1.6 1.24 65 15 0.6 103 105 75 18 25 .031 1/2" M25X1.0 M22X1.5 6.0 42 (19)
10018 18:1 2.6 2.44 55 13 1.0 52 105 75 25 35 .039 1/2" M25X1.0 M22X1.5 10.0 40 (18)
10032 32:1 2.6 2.44 55 23 1.0 52 140 75 25 35 .039 1/2" M25X1.0 M22X1.5 10.0 44 (20)
15042 42:1 4.0 3.85 55 47 1.7 33 200 75 31 44 .045 3/4" M25X1.0 M22X1.5 15.0 84 (38)
18066 66:1 4.8 3.90 55 75 1.7 33 200 120 25 35 .047 3/4" M35X1.5 M22X1.5 18.0 115(52)
25048 48:1 6.6 5.10 60 81 2.4 25 200 120 29 40 .061 3/4" M35X1.5 M22X1.5 25.0 126(57)
31073 73:1 8.2 7.96 50 153 3.1 16 300 120 35 50 .069 3/4" M42X1.0 1" BSP 31.0 214(97)
34020 20:1 9.0 7.65 50 42 3.0 17 200 75 44 62 .071 3/4" M25X1.0 M22X1.5 34.0 79 (36)
35032 32:1 9.2 7.96 55 75 3.4 16 200 120 35 50 .073 3/4" M42X1.0 1" BSP 35.0 132(60)
45046 46:1 11.9 12.24 45 137 4.3 10 300 120 44 62 .079 3/4" M42X1.0 1" BSP 45.0
**High ratio barrel pumps**
2800 U 39:1 0.7 0.64 50 7 0.3 199 81.5 75 13 18 .021 3/8" N/A 3/8" 2.8
3500 U 34:1 0.9 0.78 50 7 0.3 165 81.5 75 14 20 .023 3/8" N/A 3/8" 3.5
4000 U 29:1 1.1 0.91 50 7 0.4 140 81.5 75 15 21.5 .026 3/8" N/A 3/8" 4.0

236(107)

5

PUMP COMPONENTS

SPRAY GUN:

The spray gun is designed specifically for airless spray­ing. Since there is no compressed air to atomize the
paint, atomization is accomplished by forcing the paint at
a very high pressure (3200 p.s.i) through a very small
hole (~.017" diameter). Because of this high pressure, the
spray tip and gun valve are made of tungsten carbide for
maximum wear resistance. The gun body is made of
forged alloy and anodized for chemical resistance.

As a safety feature, the spray gun can be locked with
the trigger safety lever when you are not spraying. Be
sure to read all warnings concerning the high pressures
of airless spraying on page 3&4.

AIR MOTOR

These specially designed air motors convert the energy
from compressed air into a double action stroke. Both the
up down power strokes are used by the fluid pump to
create pressure and volume. The air motors are perma­nently greased and require minimal maintenance. Its air
source must be regulated, clean, (and oiled on larger
units)

FLUID PUMP:

The fluid pump is supplied as either of an "open" or
"closed" design.

The “

open

” design has clearly visible tie-rods which
separate the air motor and the fluid end and the travel of
the piston can be observed. In order to take full advan­tages of the specially formulated lubricant with the “open”
design, the upper packing tightening nut has been de­signed as a “wet-cup” to prevent fluid hardening around
the piston.

The "

closed

" version features an integrated lube
chamber with a vent hole. This lube chamber connects
between the air motor and the fluid end and the travel of
the piston may not be viewed. A specially formulated
lubricant filled into the lube chamber allows for wetting of
the upper piston on each upstroke preventing drying up or
hardening of deposits on the piston. An important aspect
of the “closed” versus “open” version is that blast grit or
any other grinding and scoring matter causing piston
damage is kept away, and the upper packings are spring
loaded to lenghten packing life.

The pump piston has approximately 0.3 mm (0.012")
layer of hard chrome to protect against wear. Both the
upper and lower ball valves have tungsten carbide seats
and stainless steel balls. Leather or Teflon “V”-packings
are installed as packing sets and arranged Leather or
Teflon “only” or alternating, i.e. “mixed”. Teflon “V”­packings are graphite filled and the leather packings are
Thiokol impregnated.

Teflon packings are recommended when pumping
two-component materials, or coatings using strong
aggressive solvents. Leather packings are softer by
nature and flex, and thus respond better to coarse parti­cles. A mixed packing arrangement is the best solution
for all applications.

clockwise, air pressure is reduced.

Always reduce the pressure (turn the handle all the
way counterclockwise, or disconnect air supply) when
cleaning or when switching the position of the dump valve
(if so equipped).

DUMP VALVE (IF EQUIPPED):

The dump valve is located on the side of the paint pump.
When turned to “prime” (handle in-line with body), it
circulates fluid to vent the air trapped in the paint pump
out the return hose. It will continue to recirculate the paint
until the knob is manually turned to the “spray” position.

When the dump valve is turned to “spray”, flow is shut
off through the return hose and is routed to the paint hose
for spraying.

The dump valve also serves to relieve pressure on
the system during shutdown and cleanup. The pressure is
relieved by turning the prime valve to “dump”.

COATINGS:

Nowadays almost all types of paints and coatings can be
supplied in “airless quality”. Regardless, Lemmer airless
units are available with large sized inlet filter screens, and
a high pressure filter to prevent possible plugging or
damage. In addition, gun filters and tip filters may be
supplied for extra critical painting jobs.

Viscosity alone is no measure for good pump priming,
pumpability or sprayability. It may well be that a suction
hose has to be exchanged for a straight suction tube, or
the fluid pump might be immersed into the coating to
assist the priming action.

Two-component materials generally have a short “pot
life”. The unit must be properly flused and cleaned well
before the curing time starts.

We

DO NOT

aggressive fluids using the airless method. These would
include sand filled wall coatings, coatings having coarse
fibres, and various types of adhesives. Damage or wear
caused to the fluid end or any other system component
by pumping or spraying any such material is not covered
by the Lemmer warranty.

Whenever in doubt, please contact Lemmer for
correct equipment selection and usage.

recommend pumping coarse bodied or

Air motor muffler

Air motor

Fluid chamber

Wet cup

Fluid outlet

Fluid pump

PRESSURE REGULATOR:

The manually operated pressure regulator is on the side
of the air motor. When the handle is turned clockwise, air
pressure is increased, when the handle is turned counter-

Fluid inlet

Figure 1. - Pump components 7000 P - 10032.

6