
5. OPERATION
Note: The dial bore gauge is a comparator not a measuring device.
5.1. ASSEMBLY
5.1.1. Loosen the clamp screw at the top of the shaft. Insert the dial indicator into the probe
bodyuntilthepointermovesaminimumof10graduationmarks(g.1)onthedial.
5.1.2. Use a ruler and measure the diameter of the bore. Match the diameter by selecting
a combination of anvils, spacer rings and if necessary use the distance piece
(seeg2foroneexample).Testitinthebore,youmayhavetochangethespacer
rings, make a note of the length of the pieces used.
Note: Make sure everything is secure before using.
5.2. ZERO POINT ADJUSTMENT
5.2.1. Use a ring gauge or micrometer as a reference for setting your zero point.
5.2.2. Using the ring gauge/micrometer, insert the measuring head into the ring gauge.
Pivot the gauge, and watch the dial. The largest reading on the dial is the zero point.
Turn the bezel until the pointer points at the zero.
5.3. MEASUREMENT
5.3.1. Insert the measuring head into the bore.
5.3.2. Pivot the gauge while checking the dial. The movement of the pointer will indicate if
the diameter you are measuring is oversized or undersized and by how much.
6. MAINTENANCE
8DO NOT drop the gauge or assembled parts.
9Wipe clean with a dry cloth.
9If the gauge ceases to operate properly contact your Sealey stockist.
g.1
g.2
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 01284 703534 sales@sealey.co.uk www.sealey.co.uk
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.
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.
DBG5010.V2 Issue 1 21/05/20
Original Language Version
© Jack Sealey Limited