B i g Bench Assembly Instructions, page 1
Text on page 1

B i g Bench

ASSEMBLY INSTRUCTIONS MONTAGEANLEITUNG INSTRUCCIONES DE MONTAJE INSTRUCTIONS DE MONTAGE ISTRUZIONI PER L’ASSEMBLAGGIO

ISSUE – JUNE 07

Thank you for choosing the Keencut Big Bench. Every effort has been made to bring you a superbly built product with the promise of many years of good service.

Keencut – the world’s finest cutting machines

Page 1 of 10

B i g Bench Assembly Instructions, page 2
Text on page 2

B i g Bench

ASSEMBLY INSTRUCTIONS

Thank you for choosing the Keencut Big Bench. Every effort has been made to bring you a superbly built product with the promise of many years of good service.

Keencut – the world’s finest cutting machines

Page 2 of 10

B i g Bench Assembly Instructions, page 3
Text on page 3

Packing List

Packed in the Rectangular Boxes:

ITEM

QUANTITY FOR BIG BENCH

1.0,1.5 2.0, 2.5, 3.0 3.5, 4.0, 4.5 5.0

Packed in the TUBE:

ITEM

QUANTITY FOR BIG BENCH

1.0,1.5 2.0, 2.5, 3.0 3.5, 4.0, 4.5 5.0

Lift & Hold (Left & Right) (1,1)

Levelling Bracket & Screw

Page 3 of 10

B i g Bench Assembly Instructions, page 4
Text on page 4

Order of Assembly

The Order of assembly is important – the following diagrams are for quick reference only and are to enable the reader to familiarise themselves with the general assembly of the Big bench, the detailed assembly is described in 4 stages.

Stage 1 Fix the brackets to the legs.

The 1.0m & 1.5m Big bench have only 4 legs, please disregard the middle pair of legs.

2.0m, 2.5m & 3.0m Big bench

3.5m, 4.0m & 4.5m Big bench

Stage 2 Construct the end frames.

Disregard the middle frame if you are building a 1.0m or 1.5m Big bench.

2.0m, 2.5m & 3.0m Big bench

3.5m, 4.0m & 4.5m Big bench

Stage 3 Join the end frames and cross beams to produce the bench.

1.0 & 1.5 Big bench

2.0, 2.5 & 3.0m Big bench

3.5, 4.0 & 4.5m Big bench

Stage 4 Attach the Javelin lift & hold mechanisms and base extrusion.

Page 4 of 10

B i g Bench Assembly Instructions, page 5
Text on page 5

Assembly

NOTE: The following instructions will assume the Big bench has six legs (2.0, 2.5 or 3.0). If you are constructing a (1.0 or 1.5) Big bench please omit the middle frame.

Stage 1 1. Put a grub screw backwards into each of the joining brackets – do not place screws in the other holes.

Using the spacer, fit the brackets to the top of each leg as shown – ensure:

The brackets are fitted the correct way round. The spacer is slightly above the top level of the leg, so when constructed the top level of the leg is not above the beam. The grub screws are tightened fully.

Attach brackets to the bottom of the legs (and the same way round as shown above), using a tape measure or spacer to position them to suit your requirements.

Page 5 of 10

B i g Bench Assembly Instructions, page 6
Text on page 6

Put grub screws in each of the two large holes of the bracket, only screw them in 2 or 3 turns.

Assembly

Fix the height adjusters into the bottom of each leg. Position the adjuster in one of the internal grooves of the leg (ie. the same groove the brackets are fitted).

Position the bottom of the aluminium bracket level with the bottom of the leg and tighten the grub screw fully.

TOP

Fit the two short beams between each pair of leg assemblies ensuring the small groove in the beam is uppermost.

Pulling the two legs together (to close any gaps between the end of the beam and the legs) tighten all the grub screws.

TOP

Place one end frame on the floor with the brackets pointing upwards and position a long beam over each bracket (again ensure the small groove in the beam will be uppermost).

Place either:

the other end frame (if you are constructing a 1.0m or 1.5m big bench)

The centre frame (if you are constructing a 2.0m, 2.5m or 3.0m Big bench)

over the beams and tighten the grub screws ensuring there are no gaps between the beam ends and the legs.

2.0m, 2.5m or 3.0m Big bench only

Stand the frame onto its feet and position the remaining long beams between the frame and the remaining end frame, tighten all the grub screws again ensuring there are no gaps between the beam ends and the legs.

Page 6 of 10

B i g Bench Assembly Instructions, page 7
Text on page 7

Assembly

Place the base extrusion on the edge of the bench so the lip hangs over the front edge of the legs. Slide the square nuts into the recess as shown and place one near to each leg. Slide the workshop fixing plates into their groove and position them at approximately equal spaces along the base extrusion.

SQUARE

NUT

WORKTOP

FIXING PLATE

Using the 5mm hexagon wrench fix the base extrusion in place on the bench with the base clamps and cap screws.

Fix the lift & hold mechanisms to each end of the base extrusion with three self taping large screws on each end, do not at this stage tighten the screws fully.

Page 7 of 10

B i g Bench Assembly Instructions, page 8
Text on page 8

Assembly

Stage 4 – cont’d

Fix the Worktop in place using

  1. The large workshop fixing and large screws as shown.

the small screws to fix the worktop fixing plates.

Position brackets approximately as shown

Position the Javelin cutter onto the two lift & hold mechanisms by sliding the tongue into the slot inside the end caps of the Javelin.

NOTE: The friction knob on each mechanisms can be adjusted to hold the Javelin at any height which makes accurate lining up easier when in use.

Move the cutting head to one end of the Javelin and depress the blade, adjust the position of the lift & hold mechanism so the blade runs centrally in the slot on the base extrusion, tighten the three screws to fasten the lift & hold.

Repeat for the other end.

Move lift & hold to align blade in slot

Position the bench in place and using an accurate spirit level adjust the feet to ensure the top surface of the table is flat. If the table is not flat, particularly along it’s length, there may be difficulty in holding the workpiece in place along the full cut length.

Page 8 of 10

B i g Bench Assembly Instructions, page 9
Text on page 9

Assembly

If a thin film or paper is being cut check that the material can be gripped along the full length of the bench. Pass a small piece of the material about 25cm (10") wide under the cutter and ensure it is held in place, carry this out along its full length.

Should the cutter not grip adjacent to a bench leg, adjust the foot to slightly raise that part of the bench and test again.

Should the paper not be gripped by the cutter bar between the legs, place a levelling bracket and screw in the beam on the underside of the base extrusion. Position it in the middle of the area that is not clamping and tighten the screw until the paper is clamped efficiently. Check the whole cutter bar is clamping, add more levelling brackets and adjust if necessary.

Page 9 of 10

B i g Bench Assembly Instructions, page 10

Page 10 of 10 ยท End of manual

Quick start

  1. Stage 1: Fit the joining brackets to the top of each leg with the spacer, then fit the bottom brackets and height adjusters, tightening the grub screws fully. (1.0m and 1.5m benches have only 4 legs.)
  2. Stage 2: Build the end frames by fitting the two short beams between each pair of legs, small groove uppermost, and tighten the grub screws with no gaps at the beam ends.
  3. Stage 3: Join the end frames (and centre frame on longer benches) with the long beams and tighten all grub screws.
  4. Stage 4: Fix the base extrusion to the front edge with square nuts, base clamps and cap screws using the 5mm hex wrench, then attach a lift and hold mechanism at each end with three self-tapping screws, not yet fully tight.
  5. Fix the worktop with the worktop fixing plates and screws.
  6. Slide the Javelin's end caps onto the lift and hold tongues, depress the blade and move each lift and hold so the blade runs centrally in the base extrusion slot, then tighten the screws.
  7. Level the bench with a spirit level by adjusting the feet so the top surface is flat along its length.

Troubleshooting

ProblemLikely causeFix (from the manual)
Cutter does not grip the material next to a bench legBench not level at that pointAdjust that foot to raise that part of the bench slightly and test again. Page 9
Material not gripped by the cutter bar between legsBase extrusion not flat between supportsFit a levelling bracket and screw in the beam under the base extrusion in the middle of the area that is not clamping, and tighten until the material is held. Add more brackets if needed. Page 9

Frequently asked questions

What tool do I need to fix the base extrusion?

A 5mm hexagon wrench is used with the base clamps and cap screws. See page 7.

How do I check the bench grips thin film or paper?

Pass a piece of the material about 25cm (10") wide under the cutter and check it is held, along the full length of the bench. See page 9.

Can the Javelin be held at any height?

Yes. The friction knob on each lift and hold mechanism can be adjusted to hold the Javelin at any height, which makes lining up easier. See page 8.