Amourelle Products Ltd

Garage Door Spares

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Replacement of counterbalance springs
on horizontally tracked garage doors

Note: the exact procedure may vary depending on the door manufacturer
so these instructions can only be used as a general guide

IMPORTANT SAFETY PRECAUTIONS
ADJUST THE SPRINGS ONLY WHEN THE DOOR IS IN THE OPEN POSITION
Use a prop to secure the door in the open position before removing springs

Note: If an electric door opener is fitted the operators drive mechanism should be disengaged to allow manual operation before proceeding

Step 1 - Secure the door in the open position
a/ OPEN the door by hand and prop it in the fully open position taking great care as it will be very heavy.
b/ Remove & discard the old springs, (on most makes of door you'll need to slacken the tensioning bolt first)
c/ Attach a new pair of replacement springs and tighten up the spring adjuster bolt (where applicable) to take up the slack & tension the springs a further 25mm at this stage.

Step 2 - Lubrication
a./ Oil the pivot points on the balance arms
b./ Oil the pivot bearing shaft of the guide roller wheels
c./ Grease the spring groove in the spring anchor pivot bolts
d./ Grease the contact points on the frame rubbing strip & door
Note:- It is important to lubricate all the moving parts at least once a year

  Step 3 - Check for satisfactory door balance
R
emove the prop and close the door to about half way so that the activating arms are horizontal and carefully let go.  If the door has a tendency to close the door is 'under sprung' and requires more tension on the spring adjusting bolts.  Try to keep the spring tension on both sides of the door equal.
(Note: some door manufacturers don't provide any spring adjustment - e.g. Garador)

Step 4 - Re-engage the electric operator
(if fitted) and check for correct operation

Note: some sophisticated electric operator models such as the current Seip TS & TM operator range memorise the force required to operate the door as part of a safety protection system so if you have one of these models it may be necessary to follow the operator's setting-up procedure for re-learning the door characteristics after spring replacement

 Note: We recommend horizontally tracked door springs
are replaced in pairs, one each side of the door

(Past experience has proven that these springs usually fail within a year of each other so it makes
good sense to replace the pair together as springs can cause a severe damage when they snap !
In addition, this will reduce the risk of the door pulling to one side and rubbing against the frame
which can occur due to uneven tension if one new and one old spring are fitted to the door)

All work is undertaken at your own risk
If in doubt. this work should be carried out by an experienced installer


Replacement spring tensioning bolts to suit most makes of horizontally tracked garage door
including: Cardale, Classic, Bonsack, Ellard, Haskins, Henderson, Marley, Starfleet, Wessex

Click image to enlarge

 Spring tensioning bolt

bolt size:  

 

M8 x 200mm  - price: 12.50  - Qty in stock: 
M10 x 200mm - price: 14.00 - Qty in stock: 
M10 x 250mm - price: 14.90 - Qty in stock: 

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Amourelle Products

Inventors of the Securi-Dor automatic security locking device for motorised garage doors

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