Read instructions carefully before installing balances. It is recommended that before balances are installed the sashes are glazed, and in the case of timber windows, all painting is completed ensuring that both sashes slide freely in the frame.
While sketches show timber windows throughout, fitting instructions apply to all types.

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Grooving Details
Provisions must be made to house each balance in a groove or channel which can either in the frame jamb (fig 1), or in the sash stile (fig 2) and must be a minimum dimensions shown on table below. The groove must be run the full length of the sash run.
Bottoms of Sashes should be prepared to suit balance foot attachment to be used. Cut-outs to be sufficiant depth to recieve attachments and screw heads.

Balance Type	D	F	K	M
Dimention X (mm)	16	17	21.5	26
Dimention Y (mm)	17	17	21.5	27

 

 

Fig 3. Bottom rail preparation for standard 'F' balance foot.

Fig 4. Stile Preparation for channel fiting for 'F' balance foot. (Fix channel prior to fitting sash into frame).

Fig 5. Bottom rail preparation for standard 'K' and 'M' balance foot. (grooved stile shown)


Fig 6. Grooved stile preparation for channel fitting for standard 'K' and 'M' balnce foot. (Fix channel prior to fitting sash into frame).

It is important that the balances used are suitable for the weight of the sash 'F', 'K' and 'M' balances are purpose made to suit the weight of sash for which they were ordered. The relevant weight in lbs is stamped on the sash attachment at the bottem of each balance. Check that the finished sash weigt is within 1lb (0.5kg) of the figure (see figure 7).



'F' balances are the purpose made to suit sash weigts from 6.8 kg (15 lbs) to 24.9 kg (55 lbs) and have a 15mm (5/8") tube diameter.

'K' balances are purpose made to suit sash weights from 9.0 kg (20 lbs) to 37.6 kg (83 lb) and have a 19mm (3/4") tube diameter.

'M' balances are purpose made to suit sash weights from 6.8 kg (15 lb) to 45.4 kg (100 lb) and have a 22.5mm (7/8") tube diameter.