Makita VC3211M User manual

Model No.
Description
PRODUCT
CONCEPT AND MAIN APPLICATIONS
Specification
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 552 (21-3/4)
398 (15-5/8)
685 (27)
VC3211M
Vacuum Cleaner
Model VC3211M is a Wet & Dry vacuum cleaner developed
based on Model VC3210L.
This product is approved for Dust Class M in accordance with
the EU standard.
Its main benefits are:
•New automatic self-cleaning filtration system of our unique design
•Power tool activation*
•32 Liter stainless steel tank*
•High maneuverability and easy mobility*
*The same advantage as Model VC3210L
P 1/18
Continuous Rating (W)
Voltage (V) Cycle (Hz) Input Output Max. Output (W)
110
230
240
10.0
4.8
4.6
50/60
50/60
50/60
1,050
1,050
1,050
---
---
--
---
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Current (A)
Standard equipment
Note: The standard equipment for the tool shown above may vary by country.
Optional accessories
For All models:
Hose complete 28-3.5 set .......... 1
(incl. Front cuff 38)
Front cuff 22 .............................. 1
Front cuff 24 .............................. 1
Belt hook ................................... 1
Hose band .................................. 1
Cap ............................................ 1
Poly bag 800x650 ...................... 1
Poly bag set ............................... 1
(incl. 10 pcs of Poly bag 800x650)
2.0*1/ 3.5*2
22.0Max. sealed suction: kPa
Max. air flow: m³/minute
YesPower tool activation
MDust class in accordance with the EU standard
Wet & DryWet/Dry type
YesVariable suction power control by dial
Tank capacity: L 32
27
Weight according to EPTA-Procedure 01/2003*3: kg (lbs)
*1: with Hose complete 28-3.5 *2: with Hose complete 38-2.5
*3: with Poly bag 800x650
5.0 (16.4)Power supply cord: m (ft)
Grounding
73Noise: dB
16.9 (37.3)
Protection from electric shock
Dust
Water
Hose complete 28-2.5/ 28-3.5/
28-5.0/ 38-2.5/ 38-5.0
Front cuff 22/ 24/ 38
Filter bag set (5pcs/set)
Poly bag set (10 pcs/set)
Powder filter, Damper, Prefilter
Straight pipe, Bending pipe, Nozzle assembly,
Corner nozzle, Anchor nozzle, Round brush,
Cap, Cleaning set, Nozzle for wet application,
Belt hook, Hose band
W
H
This model is also available with cleaning set as VC3211MX1.
(See "Standard equipment" for what the cleaning set includes.)
For VC3211MX1 only:
Cleaning set..................... 1
Includes one each of:
-Hose complete 38-2.5
-Straight pipe
-Bending pipe
-Nozzle assembly
-Corner nozzle
TECHNICAL INFORMATION
L

[1] NECESSARY REPAIRING TOOLS
DescriptionCode No. Use for
[2] LUBRICANT/ADHESIVE APPLICATION
Pipe ring (for arbor press)1R023
removing Caster 75Bearing extractor1R263
press-fitting Caster 75Type 94 field insert jig1R275
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
CAUTION: When performing startup test of the AC motor with the motor section separated from
the Tank section, be sure to hold the Motor section firmly, or it will move around.
CAUTION: When cleaning dust filtration parts or removing dust from other contaminated parts,
be sure to use Acrylic dust box (Code No. 1R276) so as not to scatter dust.
press-fitting Fan cover onto Return vane
removing dust from the machineAcrylic dust box1R276
V-Block1R258 press-fitting Fan cover onto Return vane
Repair
Retaining ring S and R pliers1R291 removing/installing Retaining rings
Torque driver1R344 tightening M5x60 Pan head screws through Endbell and Field into Base
P 2/18
Fig. 1
Item
No. Description
O ring 9 whole surface
whole surface
O ring 14
a little
approx. 3g
whole surface
whole surface
Gear case gear chamber where planetary gears engage with Internal gear 42
O ring 9
a little
a little
a little
AmountPortion to lubricate
Apply Makita grease N.No.2 to the following portions designated by black triangle to protect parts and product from
unusual abrasion.. (Fig.1)
Apply ThreeBond 1215 to Rubber ring 120 and Seal ring.
See step (3) of "ASSEMBLING" in [3]-1. Motor section for Rubber ring 120,
and "ASSEMBLING" in [3]-2. Inner cover for Seal ring.
Cam
O ring 20
planetary gear
(Spur gear 15)
Switch
Switch holder
Sub controller
Switch base E-M complete
Switch lever
Switch dial

[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Motor section
(1) Unlock two hooks to separate Motor section from Tank section. (Fig. 2)
(2) Raise Grip and open Base hook, then remove nine 4x35 Tapping screws to remove Base grip and Cowling complete
from Separator complete. Switch base E-M complete can be now be removed. (Fig. 3)
(3) Remove Receptacle terminals of Field from Controller. (Fig. 4b)
(4) Remove Vinyl tube from the hole beside DC motor unit. (Fig. 4a)
(5) Remove seven 4x35 Tapping screws (five screws fastening Separatorcomplete to Tank cover complete and
two screws fastening DC motor unit to Tank cover complete). (Fig. 4)
(6) Remove DC motor unit from Tank cover complete. (Fig. 5)
Note: Be careful not to drop Spindle assembly out of DC motor unit.
DC motor unit can be disassembled as shown in Fig. 6.
DISASSEMBLING
Repair
P 3/18
Fig. 2
Fig. 4
Fig. 3
Cowling complete
Fig. 4a Fig. 4b
Base grip
4x35 Tapping screw (9 pcs)
4x35 Tapping screw (7 pcs)
Separator complete
viewed from top
DC motor unit
Vinyl tube
Controller
Receptacle terminals
Fig. 5 Fig. 6
DC motor unit
Grip
Flat washer 12
Spur gear 15 [of steel] (3 pcs)
M3x6 Pan head screw (2 pcs)
Spindle assembly
Flat washer 34
Ball bearing 6805LLB
Internal gear 42
Spur gear 9 complete
Spur gear 15 [of plastic] (3 pcs)
Gear case
DC motor
Switch base E-M complete
Hook
Hook

[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Motor section (cont.)
Repair
P 4/18
(7) Take two Closed end splices out of the splice storage compartment to allow the lead wire of each of two Lead units
to have slack in it. (Fig. 7)
(8) With the lead wire of Lead units slack, remove Separator complete from Tank cover complete.
then remove AC motor unit. (Fig. 8)
(9) Remove Motor cover from AC motor unit, then remove
Fan 62 by turning it clockwise fast by hand.
If Fan 62 cannot be removed by hand, turn it by pushing
the fan blade with a small slotted screwdriver as shown
in Fig. 9.
Note: Be careful not to deform the fan blade with the
screwdriver.
DISASSEMBLING
Fig. 7
Fig. 8
Fig. 9
Separator complete
viewed from top
Impedance protection circuit
*Closed end splice
connects the lead wires
of Impedance protection
circuit and Lead unit.
*Closed end splice
splice storage compartment
AC motor unit
Separator complete Motor cover
Fan 62

[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Motor section (cont.)
Repair
P 5/18
(10) Disconnect Carbon brushes from the commutator of Armature assembly by moving the tail end of the spiral spring
of each Brush holder as shown in Fig. 10.
Note: No need to remove Carbon brushes in this step.
(11) Unscrew M4x12 Pan head screw that fastens Brush holder to Endbell, then remove Receptacle terminal from
the terminal of Brush holder, and then remove Brush holder together with Carbon brush.
(12) Remove Endbell and Field by unscrewing two M5x60 Pan head screws.
(13) Remove Fan cover from Return vane as follows; put a slotted screwdriver against Fan cover as shown in Fig. 11,
then tap the screwdriver with a plastic hammer.
(14) Remove Fan 125 from Armature shaft as follows; hold Armature firmly with a gloved hand,
then remove M8 Hex nut by turning counterclockwise with an impact driver.
(15) Remove Return vane from Base as follows; loosely tighten M8 Hex nut to Armature shaft
so that Armature assembly cannot fall out of Base, then put a slotted screwdriver against
Return vane as shown in Fig. 12, and then tap the screwdriver gently with a plastic hammer.
Shown in Fig. 13 is the exploded view of Return vane-Armature assembly section.
DISASSEMBLING
Fig. 10
Fig. 12
Fig. 11
Receptacle terminal
Carbon brush Endbell
M4x12 Pan head screw
Spiral spring
Brush holder
with Carbon brush
Fan cover
Return vane
Fig. 13
Base Return vane
Put a slotted screwdriver
against Return vane
through the notch of Base.
Base
Spacer
Armature assembly
Ball bearing
629DDW
Ball bearing
6200DDW
Return vane O ring 30
Flange
Fan 125

[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Motor section (cont.)
Repair
P 6/18
(1) Assemble the parts shown in Fig. 14.
Note: Loosely tighten M8 Hex nut to Armature shaft.
(2) Install Fan cover onto the assembly you made in step (1) as follows:
1. Put the assembly on 1R023 so that it stands on *the six protruding ribs of Base. (*See Fig. 15.)
2. Put Fan cover on the assembly.
3. Put 1R258 on Fan cover. (Fig. 16)
Note: Do not to put 1R258 on the three mating bosses of Base, or you will break them.
4. Using arbor press, press-fit Fan cover onto Return vane. (Fig. 16)
(3) Push Rubber ring 120 firmly into the groove of Base
with the groove side up as shown in Fig. 17.
Note: When installing Separator complete in step (13)
of "ASSEMBLING", be sure to apply ThreeBond 1215
in the groove of Rubber ring 120 without gap.
(4) Attach Field to Endbell.
ASSEMBLING
Fig. 14
Base
Spacer
Armature assembly
Ball bearing
629DDW
Ball bearing
6200DDW
Return vane
O ring 30
Flange
Fan 125
Fan 125
M8 Hex nut
Flat washer 10
Fig. 16Fig. 15
Fig. 17
Do not put 1R258 on
these three mating bosses.
1R258
1R023
Return vane
six protruding ribs Base
Fan cover
Return vane
with the groove side up
Cross section of
Rubber ring 120
Rubber ring 120

[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Motor section (cont.)
Repair
P 7/18
(5) Make sure that Wave washer 20 is placed in the bearing chamber of Endbell, insert Armature assembly into Endbell.
(6) While pressing the bearing chamber of Endbell straight down so that Wave washer 20 is approximately level,
alternately tighten the two M5x60 Pan head screws with a manual screwdriver until they are seated. (Fig. 18)
Then using 1R344, tighten the screws to a tightening torque of 1.3 to 1.5N.m.
Note: Brush holders can be now installed in place.
(7) Install Fan 62 onto Armature shaft as follows; place Fan 62 onto Armature shaft so that the crimped end of Fan bush
is positioned on the opposite side of Endbell, then tighten Fan 62 hand-tight by turning it counterclockwise, and then
tighten securely by pushing the fan blade with a small slotted screwdriver. (Fig. 19)
Note: Be careful not to deform the fan blade with the screwdriver.
(8) Install Seal ring 70 onto Motor cover, then mount Motor cover firmly over Endbell and Field.
(9) Matching the three circular mating depressions of Support ring with the three circular mating bosses
of Tank cover complete, mount Support ring into Tank cover complete. (Fig. 20)
(10) Matching the three mating bosses of Fan cover with three of the six mating depressions of Support ring,
mount AC motor unit on Support ring. (Fig. 21)
ASSEMBLING
Fig. 19Fig. 18
Fig. 21Fig. 20
M5x60
Pan head screw
Fan 62
crimped end
of Fan bush
Endbell
Field
Tank cover complete
Support ring circular mating
depression
circular mating boss Support ring
Fan cover mating boss
AC motor unit
mating depression

[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Motor section (cont.)
Repair
P 8/18
(11) Install two Outer valve completes in place as shown in Fig. 22.
Note: Be careful not to move them out of place when installing Separator complete in step (13) below.
(12) Assemble DC motor unit. [Refer to step (6) and Fig. 6 of "DISASSEMBLING".]
Note: When installing DC motor on Gear case, insert the positioning pin of Gear case into the positioning hole of
DC motor. (Fig. 23)
(13) Put Separator complete on Tank cover complete, then put DC motor unit in place; at this time, do not forget to
engage the two flats of Spindle with those of Cam’s hole.
Note: Do not forget to place DC motor seal between Separator complete on Tank cover complete.
Note: Apply Makita grease N.No.2 to the gear chamber of Gear case to prevent Spindle assembly from falling off
from DC motor unit.
(14) Fasten Separator complete and DC motor unit to Tank cover complete with seven 4x35 Tapping screws,
then insert Vinyl tube into place. [Refer to Fig. 4 of "DISASSEMBLING".]
(15) Fit Switch base E-M complete in Cowling complete, then put Cowling complete over Separator complete;
be sure to fit the top end of Switch base E-M complete in the groove inside Cowling complete to prevent
Switch base E-M complete from falling out of place. (Fig. 24)
And then fasten Cowling complete to Separator complete with nine 4x35 Tapping screws.
ASSEMBLING
Fig. 23Fig. 22
Fig. 24
Tank cover complete
Outer valve complete (2pcs)
positioning pin positioning hole
Gear case
DC motor
Cowling complete
Separator complete
Switch base E-M complete
groove inside
Cowling complete
top end of
Switch base E-M complete
Cowling complete,
viewed from bottom
groove inside
Cowling complete

[3] DISASSEMBLY/ ASSEMBLY
[3]-2. Inner cover
Repair
P 9/18
(1) Turn the assembly of Inner cover and Tank cover complete upside down, then raise Lock lever to remove
two Pre-filters. (Fig. 25)
(2) Remove eight 4x35 Tapping screws that fasten Inner cover to Tank cover complete. (Fig. 26)
Three of the eight screws are used also to fasten Protector to Inner cover. So, first pull off Terminal of two Lead units
from Water level sensors of Protector, then remove Protector from Inner cover and then remove Inner cover from
Tank cover complete. (Fig. 27) Rubber ring and Seal ring can now be removed from Tank cover.
(3) Remove two Inner valve completes, then remove Cam by removing Retaining ring S-20. (Fig. 28)
DISASSEMBLING
Fig. 26Fig. 25
Lock lever
Pre-filter
Inner cover
Tank cover complete
Fig. 27
Protector
Water level sensor
Inner cover
Terminal of Lead unit
Fig. 28
Cam
Inner cover,
viewed from bottom
4x35 Tapping screw (8 pcs)
Retaining ring S-20
Inner valve complete

[3] DISASSEMBLY/ ASSEMBLY
[3]-2. Inner cover (cont.)
[3]-3. Grip
Repair
P 10/18
Assemble by reversing the disassembly procedure.
Note:
• When installing Seal ring onto Tank cover complete, put the protruding portion of the ring in the depressed portion of
Tank cover complete, then apply ThreeBond 1215 to the portion as shown on the left of Fig. 29.
• When installing Rubber ring onto Tank cover complete, fit the groove of the ring firmly over the fitting rib of Tank
cover complete as shown on the right of Fig. 29.
ASSEMBLING
(1) Put the pivot pin of one end of Grip in the pivot hole on the rear side
of Cowling complete.
(2) While prying the other end of Grip with a slotted screwdriver
as you did in step (3) of "DISASSEMBLING", put the pivot pin
in the pivot hole on the front side of Cowling complete.
(1) Put Grip in the retracted position.
(2) Insert a slotted screwdriver between Grip and Cowling complete,
then pry Grip in the direction of the white arrow to disengage
the pivot pin of Grip from the hole of Cowling complete. (Fig. 30)
(3) While prying with the screwdriver, remove Grip by lifting it
upwards.
ASSEMBLING
Fig. 29
Tank cover complete,
viewed from bottom
Seal ring
Rubber ring
DISASSEMBLING
Fig. 30
Pivot pin of Handle
Cowling complete
Grip
Note: When prying Grip with a slotted screwdriver, be careful not to
damage the surface of Grip or Cowling complete. An so it is highly
recommended to wrap a rag around the screwdriver.
groove of Rubber ring

[3] DISASSEMBLY/ ASSEMBLY
[3]-4. Caster
Caster 75 (Front wheel)
Repair
P 11/18
Assemble by reversing the disassembly procedure.
Remove the metal stem from new Caster 75, then press-fit
the plastic portion of new Caster 75 over the metal stem
left sticking on Tank as follows:
1. Apply *grease to the metal stem.
2. Put 1R275 in the groove of the
plastic portion of new Caster 75.
3. Hit 1R275 with a plastic hammer.
*You can use any kind
of grease such as
Makita grease N No.2.
(1) Turn the machine upside down.
(2) Apply a slotted screwdriver to the mating line of Tank and
the metal stem of Caster 75, then hit the screwdriver to make
a slit between them. (Fig. 31)
(3) Remove Caster 75 from Tank with two Bearing extractors
(1R263) as follows:
1. Insert the M-shaped end of two Bearing extractors (1R263)
between the slit you made in step (2).
2. Hold the metal stem of Caster 75 with the M-shaped end
as shown in Fig. 32.
3. Pry Caster 75 up and off from Tank.
ASSEMBLING
Assemble by reversing the disassembly procedure.
ASSEMBLING
DISASSEMBLING
Caster 170 (Rear wheel)
(1) Pry Wheel cap off from Caster 170 with a slotted screwdriver. (Fig. 34)
(2) Using 1R291, remove Retaining ring S-20. (Fig. 35) Caster 170 can be now removed from Joint pipe 20-350.
DISASSEMBLING
Fig. 31
Tank
Caster 75
metal stem of Caster 75
Fig. 32 Fig. 33
Fig. 34 Fig. 35
M-shaped end of 1R263
M-shaped end
Bearing extractors (1R263)
Caster 75
plastic portion
of new Caster 75
1R275
Note: If the metal stem is too tight to remove,
replace the plastic portion only as shown in Fig. 33.
metal stem left sticking
Wheel cap Caster 170 Joint pipe 20-350
Retaining ring S-20
Flat washer 20

[3] DISASSEMBLY/ ASSEMBLY
[3]-5. Bumper
Repair
P 12/18
Assemble by reversing the disassembly procedure.
Pry Bumper off from Tank with a slotted screwdriver. (Fig. 36)
ASSEMBLING
DISASSEMBLING
Note: Make sure that there is no gap between Bumper and Base.
Fig. 36
Tank Bumper
[3]-6. Inlet section
Install the parts of Inlet section onto Tank as shown in Fig. 37.
ASSEMBLING
Note: Make sure O ring 56 is installed on Holder before installing
Inlet onto Holder.
Fig. 37
Tank
Inlet
O ring 56
Holder
4x28 Tapping screw (3 pcs)
Holder plate
[3]-7. Checking automatic self-cleaning filter system
After repair is complete, be sure to check if the automatic
self-cleaning system works properly as follows:
(1) Turn Motor section upside down and place it on a workbench
as shown in Fig. 38.
(2) Switch on the machine.
(3) Make sure that two Filter units collapse then expand
alternately every 10 seconds.
Fig. 38
Filter unit

P 13/18
Fig. D-01
Power supply cord
Circuit diagram
AC motor
Field
Brush holder
Brush holder
Line filter
(if used)
Strain relief
Line filter
(if used)
white or blue
green and yellow, or green
black or
brown
Impedance
protection circuit
Lead unit Lead unit
Receptacle
(may vary by country;
see next page for details.)
Terminal block Pressure sensor
DC motor
Buzzer
circuit
Switch
Sub controller
Vinyl tube
Color index of lead wires' sheath
Black
White
Red
Orange
Yellow
Blue
Purple
Gray
Green
Terminal of
Lead unit
red marking
Controller
Band (cable tie)

P 14/18
Fig. D-02
Circuit diagram
Country
Part No.
European countries,
etc. 655117-0
UK (240V) 655118-8
UK (110V) 655119-6
Brazil 655120-1
Australia, etc. 655121-9
Argentina 655122-7
Front view Back view
showing where Terminals C1, C2 and C3 are located
Receptacle
C01 to
Orange wire
C02 to
Purple wire
C03 to Green and Yellow wire
C02 to
Purple wire
C03 to Green and Yellow wire
C01 to
Orange wire
C02 to
Purple wire
C03 to Green and Yellow wire
C03 to Green and Yellow wire
C01 to
Orange wire
C02 to
Purple wire
C03 to Green and Yellow wire
C01 to
Orange wire
C02 to
Purple wire
C01 to
Orange wire
C03 to Green and Yellow wire
C02 to
Purple wire
C01 to
Orange wire

P 15/18
Fig. D-03
Fig. D-04
Wiring diagram
1. AC motor unit
Brush holder
Brush holder
AC motor unit,
viewed from top
Field lead wire
to Controller
Field lead wire
to Controller
Field lead wire to Controller,
the longer one
Field lead wire to Controller,
the shorter one
Bind two Field lead wires
with Band (cable tie) at the exit
of the shorter Field lead wire.
Make sure that the longer
Field lead wire is tight
between Band (cable tie)
and the exit of the wire.
Fix two Field lead wires
to each Brush holder
in these lead wire holders.
Fig. D-05
WRONG
The slack of
the pig tail wire
is out of place.
The pig tail wire is
not running right
due to wrong
connection of the
flag terminal to
Brush holder.
flag terminal
on pig tail wire
brush holding frame
CORRECT
pig tail wire of
Carbon brush
Install Carbon brush as shown below:
1 Place the slack of the pig tail wire of Carbon brush
between the dotted line and the brush holding frame
of Carbon brush.
2 Connect the flag terminal on the pig tail wire to
Brush holder so that the pig tail wire runs as shown
in the dotted circle.

Install AC motor unit
onto Tank cover complete
so that Band (cable tie) is
placed within this area.
P 16/18
Fig. D-06
Fig. D-07
Wiring diagram
1. AC motor unit (cont.)
Motor cover
Brush holder
pig tail wire of
Carbon brush
Be careful not to pinch the pig tail wire
of Carbon brush between Motor cover
and Brush holder.
Band (cable tie)
AC motor unit
Band (cable tie)
Tank cover complete,
viewed from top
Cord seal
Lead unit
Cord seal
Lead unit
Tank cover complete
(cross-section)
Install Cord seal onto
Lead unit, then install
them onto Tank cover
complete as shown on
the right.

P 17/18
Fig. D-08
Wiring diagram
2. Wiring in Separator complete
Separator complete
Place the slack of
AC motor’s lead wires
in this space.
Fix AC motor’s lead
wires in these lead wire
holders.
Buzzer circuit
Put the following Lead wires between these ribs:
• Power supply cord’s lead wire connected to Controller
• Controller’s lead wires connected to DC motor
• Buzzer circuit’s lead wires
• Vinyl tube to Pressure sensor
rib
Do not place the slack
of Lead wires on
Cord guard.
Cord guard
Controller
Vinyl tube
Fix Buzzer circuit’s lead wires
in this lead wire holder, then fix
Vinyl tube over them.
DC motor
red marking
Push Vinyl tube over
this boss firmly until
it stops.
Route AC motor’s
lead wires through this
opening of Separator
complete; make sure
that they are tight inside
Separator complete.
Connect Flag terminals
to DC motor so that
Lead wires run as shown
in the figure.
Fix Controller’s lead wires
connected to DC motor
in this lead wire holder
so that they are tight
between DC motor and
this lead wire holder.
Controller
Cord guard
Do not drop nor press
Buzzer circuit,
nor pull its lead wires
too strong.
Line filter Line filter
If Line filter is used, wind Power supply
cord’s lead wires one turn around Line
filter as shown below, then put Line filter
in this place.
If Line filter is used, wind AC motor’s
lead wires one turn around Line filter
as shown below, then put Line filter in
this place.

P 18/18
Fig. D-09
Wiring diagram
2. Wiring in Separator complete
Impedance
protection circuit
rib
Lead wires of Impedance protection circuit
of Controller must be routed between the ribs
as shown below.
Put Insulated connectors in this space.
Fix the four lead wires in this lead wire holder.
Lead unit’s lead wire
Controller
Receptacle
(with Receptacle
sleeve)
Receptacle Switch
Sub controller
Switch
Connect Receptacles to Switch as shown below.
Do not place the slack of Lead wires
on these ribs.
Do not place the slack of Lead wires
on this portion.
Place Lead wires
and Vinyl tube
between the boss
and the inside wall
of Separator complete. boss
boss
inside wall of
Separator complete
Push Vinyl tube over
Pressure sensor of
Controller firmly
until it stops.
This space is for holding
two Insulated connectors.
Do not put any slack of
the other Lead wires.