7
© BTB Auto Glass & Body Shop Tools
2.1.9 Adjustable Cutting Depth Controller Arms
A range of controller arms are provided with each toolkit to
provide precise cutting depth control, avoiding damage to blade,
pinchweld, mouldings and glass. These are to be used
against
the rounded side of the cutting blade tip
. They can be quickly
attached into the controller cap jaw and adjusted to required depth.
CONTROLLER ARM
NYLON CONTROLLER CAP RESTS
AGAINST GLASS AND SECURES
DEPTH CONTROL ARMS
CUTTING
DEPTH
Diagram F
2.1.9.1 SELECTING CONTROLLER ARMS
Controller arms with a
Thick Nylon
roller wheel are for use with the
wheel rolling against the head liner or trim. See
Diagram E
.
Controller arms with a
Thin Steel
roller wheel are for use with the
wheel rolling against adhesive. See
Diagrams H, M, U
and
Diagram V
.
For the full range of controller arms refer to the table in section
7
.
2.1.9.2 SETTING BLADE DEPTH CONTROL
Refer following instructions together with the example in
Diagram G
.
A
. Place blade tip against adhesive
B
. Calculate adhesive thickness
C
. Adjust controller arm wheel a distance away from stop point
C and equal to adhesive thickness B.
Refer
Diagrams U
,
V
,
E
,
G
,
H
,
ZB
and
Diagram ZC
.
(A)
(B)
(C)
WK11BW5
CONTROLLER ARM
PINCHWELD
ADHESIVE
PILLAR TRIM
or HEADLINER
CAR
BODY
BLADE
GLASS
Diagram G
2.1.9.3 USING CONTROLLER ARMS ON TOP OF CUTTING BLADES
Mostly used on top of blades while the flat side of the blade
reciprocates against glass surface. Refer
Diagram F and Diagram G
.
2.1.9.4 USING WK11CW CONTROLLER ARM UNDER 'R' BLADES
To steer the ORANGE and BLUE "Reverse" blades safely away from
and encapsulated glass, the WK11CW controller arm is fitted under
an "R-S" or "VR-S" blade to cut against the pinchweld and NOT
against the glass. The Control arm provides critical support to the
reciprocating blade, besides blade depth control. Refer to
Diagrams
H, U
and
Diagram V
.
2.1.9.5 SPACING CONTROLLER ARMS AWAY FROM GLASS
Fit Velcro® pads to Controller Arm Wheel to further space Control
Arm away from glass. Velcro® pads can also stop unnecessary noise.
Refer
Diagrams H, M
and
Diagram V
.
GLASS
PINCHWELD
ADHESIVE
ENCAPSULATED
MOULDING
FLAT SIDE OF ORANGE
OR BLUE REVERSE BLADE
AGAINST PINCHWELD
CONTROLLER
CAP
CONTROL ARM
UNDER BLADE
PROTECT
PILLAR TRIM
OR HEADLINER
SPACE CAN BE FILLED BY
ADHERING VELCRO® TABS
TO WHEEL.
Diagram H
2.2 Cut-Out Planning & Instructions
IMPORTANT! CONSIDER ALL OPTIONS
AND PLAN YOUR CUT-OUT FIRST.
When planning a cut-out many factors need to be
considered. For example:
The same glass may require different cut-out techniques.
A. Damaged glass has less risk and may be removed
more aggressively and quickly. Refer to Diagram W on
page
10
.
B. Undamaged glass (to be reinstalled) has high risk and
requires a patient, stress free and well-planned cut-out,
which may require a combination of cutting from both
inside and outside of the vehicle.
Take advantage of BTB’s versatile and precise system which
allows you to cut the adhesive:
a.
from outside the vehicle
b.
from inside the vehicle
c.
against surface of glass
d.
against surface of pinchweld/panel
e.
combining the cutting from inside and outside as a
solution for difficult removals
.
Use this user manual as a reference document. Specifically
the following sections:
•
Cut-Out Plan & Blade Selection Reference
(Diagram A, page 2)
•
Blade Types shown (Diagram D, page 6)
•
Hints, Tips and Operating Techniques (page 14)
•
Blade Chart (page 15)
•
The many practical examples in this user manual.
Now select a cutting blade type and colour which
allows the blade cutting tip to cut the adhesive:
A. with the flat side facing and against the glass surface
(Diagram G and Diagram N)
B. with the flat side facing and against the pinchweld or
panel surface (Diagrams H, U and V)
Select depth control arm. See 2.1.9 Adjustable Cutting
Depth Controller Arms section.
