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3.7.
STARTER MOTOR (12 VOLT)
NOTE: This test requires that the battery is in good condition and is charged to at least 75% capacity.
3.7.1.
Disable ignition system (remove fuse or similar) so that engine will not start.
3.7.2.
Carry out a load test (section 3.3.), if not already done, and note voltage reading.
3.7.3.
Use the table given below to determine the equivalent minimum cranking voltage. Note that for engines of less than 3.25 litres take the
next higher figure. For example:
a) 3.5 litre engine - load test result 11.0 volts, gives min. cranking voltage of 9.7 volts.
b) 1.5 litre engine - load test result 11.0 volts, gives min. cranking voltage of 10.2 volts
Load voltage
Min. cranking voltage
3.7.4.
Operate the starter motor and note the voltage during cranking.
3.7.5.
A reading below the minimum cranking voltage indicates that the starter motor is taking excessive current. This may be due to poor
connections, to a faulty motor or to the battery being too small for vehicle.
3.7.6.
After test reinstate ignition system.
NOTE:
For a 6 volt system test as above and note load test voltage. Double this value and determine equivalent min. cranking voltage
as in 3.7.3. Halve the figure to give minimum cranking voltage for the 6 volt system and then proceed from 3.7.4.
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice. Please note that other versions of this product are available. If you require documentation for alternative versions, please email or call
our technical team on technical@sealey.co.uk or 01284 757505.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
© Jack Sealey Limited
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7.7
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8.7
01284 703534
Original Language Version
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sales@sealey.co.uk
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www.sealey.co.uk
BT91/10.V3 Issue 2 17/03/21
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