BKS 450
Assembly/Operating Instructions
Site Saw BKS 400/BKS 450
Model No. 1001
3305 Stock-no. 115 107 8059
Contents
1.0 Scope of Application
2.0 Specifications
3.0 User Responsibility
4.0 Standard Accessories
5.0 Optional Accessories
6.0 Assembly
7.0 Mitre Fence Assembly
8.0 Installation
9.0 Operation/Settings
10.0 Cutting
11.0 Saw Dust Collection (optional accessory)
12.0 Crane Lifting
13.0 Safety Rules
14.0 Care and Maintenance
15.0 Wiring Diagrams
16.0 Spare Parts List and Drawing
1.0 Scope of Application
This site saw model BKS 400/BKS 450 has been designed to perform rip and cross cuts in wood having a
square or rectangular cross section.
Cross cuts should only be performed with the help of the mitre fence.
Round stock or firewood should not be cut without an appropiate jig holding the work safely.
The maximum/minimum blade diameters are 400/350 mm for model BKS 400 and 450/350 mm for model
BKS 450.
2.0 Specifications
BKS 400/3.1 WNB BKS400/4.2 DNB BKS450/4.75DNB
Table size 1000 x 665 mm 1000 x 665 mm 1000 x 665 mm
Table height from floor 850 mm 850 mm 850 mm
Depth of cut 127 mm 127 mm 152 mm
Motor speed 50/60 Hz 2800/3360 rpm 2800/3360 rpm 2800/3360 rpm
Cutting speed 58.5 m/sec 58.5 m/sec 66 m/sec
Motor capacity P1 S6 40% 3.1 kW 4.2 kW 4,75 kW
Motor capacity P2 S1 100% 1.5 kW 2.1 kW 2.4 kW
Voltage 1~ 220/240V 3~ 380/440V 3~ 380/440V
Mains fuse 1 x 16A 3 x 16A 3 x 16A
Max. saw blade diameter 400 mm 400 mm 450 mm
Min. saw blade diameter 350 mm 350 mm 350 mm
Saw blade bore 30 mm dia. 30 mm dia. 30 mm dia.
Note: Saw blade 450mm diameter requires 4.75kW motor. Use of 450mm blades with 3.1kW and 4.2kW
motor voids factory warranty!
3.0 User Responsibility
This machine will perform in conformity with the description contained in the instructions provided. This machine must
be checked periodically. Defective equipment (including service leads) should not be used. Parts that are broken,
missing, plainly worn, distorted or contaminated, should be replaced immediately. Should such repair or replacement
become necessary, it is recommended that such repairs are carried out by qualified persons approved by the equipment
manufacturer or its representative. This machine or any of its parts should not be altered or changed from standard
specifications. The user of this machine shall have the sole responsibility for any malfunction which results from
improper repair by anyone other than qualified persons approved by the equipment manufacturer or its representatives.
Note
Within the U.K., this machine falls under the Woodworking Machinery Regulations 1974, under which certain
operations, e.g. grooving, rebatting, tenoning and moulding are prohibited without special guards. For your own safety
it is recommended to follow the instructions given in the Health and Safety at Work booklet No.41, entitled “Safety in
the Use of Woodworking Machines” and “A Guide to Woodworking Machinery Regulations” HS(R)9. Both publications
are available from Her Majesty’s Stationary Office and other bookshops.
The information contained in this manual is intended to make the operator of this saw familiar with its safety features,
setting of guards and fences, and the safe performance of the different basic cutting operations normally carried out
with this type of saw. It does not teach the operator how to become an expert woodworker. Those persons interesting
in gaining a more intimate knowledge on the tasks which can be carried out on this type of saw are advised to refer to
commercially available literature on the subject.
4.0 Standard Accessories
Saw blade
Riving knife DIN 38820 Gr. 50x3
Saw blade guard
Rip fence
Mitre fence
Lifting eyes
Push stick
Tool set
Operating instructions
-
5.0 Optional Accessories
For the metabo Site Saws BKS the following accessories are available at extra cost:
-
Sliding Carriage BKS/BKH Stock-no. 0910 00666 5
-
Extension Table BKS/BKH Stock-no. 0910 00667 3
-
Dust Extraction Adaptor BKS 100mm Stock-no. 0910 00874 9
-
Log Cutting Attachment BKS/BKH Stock-no. 0910 00886 2
6.0 Assembly
Place table onto firm support (e.g. saw horses).
Attach table insert (aluminium extrusion) to table; use 10 pcs. countersunk flat-head screw 4.2x13. Bolt rip fence guide
extrusion to front of table.
Bolt both support brackets to the motor. Use 4
each hex. head screw M8x16 hex. nut M8.
Attach the thus preassembled motor to the
table, but do not yet tighten fully. Use 4 each
countersunk screw M8x16
hex.nut M8
washer 8.4
Install saw blade onto motor, than align motor
so that the saw blade is centered in the table
insert’s slot.
When positioned correctly fully tighten the
motor on the table.
Attach mounting plate for the riving knife carrier bracket to the table.
Use 4 each
countersunk screw M6x16
hex. nut M6
Attach riving knife carrier bracket loosely to
mounting plate.
Use 4 each
hex. head screw M6x16
washer 6.4
hex. nut M6
top
Place carriage bolt M12x30 into slot of carrier
braand slide riving knife carrier onto bolt. The
imprint “Oben” must point towards the table.
Mount riving knife and secure in place with
pressure plate and self-locking hex. nut M12.
Align riving knife with saw blade, then fully tighten the screws ficing the riving knife carrier
bracket to the mounting plate.
90°
Place both support struts onto the table, set
square with the slot of the table insert and bolt
to the table. Use 10 each
countersunk screw M6x16,
hex. nut M6
Bolt switch to front support strut. Use 2 each
hex. head bolt M6x16
torque type hex. nut M6
Install the guard support bracket without fully
tightening the screws.
Use 2 each
countersunk screw M6x16, hex. nut M6,
hex. head screw M8x16,
hex. nut M8
Attach strain relief clamp to support strut. Use
hex. head bolt M6x16
hex. nut M6
Attach gusset plate with carriage bolt M10x25,
washer 10.5 and starknob M10
Remove saw blade and bolt chip case to both
support struts and motor plate. Hardware:
4 ea. hex head screw M8x16
4 ea. hex. nut M8
2 ea. hex. head bolt M6x16
2 ea. washer 6.4
2 ea. hex. nut M6
Install both hex. head bolts M8x90 into chipcase, secure with hex. nuts M8
Install legs with struts and diagonal struts to table.
- Tighten all screws handtight only at this stage. - Install struts as shown in drawing “A”.
Hardware: 22 each hex. head bolt M8x16; 4 each hex. head bolt M8x20; 26 each hex. nut M8
Re-install saw blade, be sure of correct direction of rotation. Install chip case lid. Use 2 each
torque type hex. nut M8
Bolt lifting eyes to table (at rear left and front
right). Place pressure spring onto bolt before
screwing on nut. Use 2 each
hex. bolt M8x35
pressure spring 9x20
torque type hex. nut M8
"A"
Turn saw over and stand onto its legs.
Align and fully tighten all screws.
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