Page 346 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)
P. 346

The City & Guilds Textbook: Plumbing Book 1
















                STEP 1 Locate the screw that holds the tap head   STEP 2 Carefully remove the tap head.   STEP 3 With the head removed, we can now break
                onto the spindle and carefully remove with a   Invariably, BS 1010 taps are cross-top heads,   the joint between the tap head workings and
                small screwdriver.                which can prove difficult to remove. Care must   the tap body using an adjustable spanner. This
                                                  taken here to prevent damage to the appliance   may involve using a pair of water pump pliers to
                                                  that the tap is fixed to.          counteract the force of the adjustable spanner on
                                                                                     the head workings. Ensure that a cloth is used to
                                                                                     protect the tap body from the effects of the jaws
                                                                                     of the water pump pliers on the tap body.















                STEP 4 Remove the jumper plate and washer   STEP 5 Some rubber tap washers are held onto   STEP 6 Remove the packing gland nut and
                from the spindle. A little force may be needed   the jumper plate by a small brass nut. Carefully   remove the spindle by fully winding in a
                from the flat blade of a screwdriver if the   remove the nut and replace the existing rubber   clockwise direction and pushing the spindle
                jumper plate is fixed.            washer with a new rubber washer of the correct   through the packing gland.
                                                  size, then replace the washer nut. Do not over-
                                                  tighten the washer nut as it may break.















                STEP 7 Check the spindle for any signs of wear   STEP 8 Push the spindle back through the   STEP 9 Check the packing in the packing
                and remove any scale that may have gathered   packing gland and fully wind until the tap   gland and replace with a PTFE grommet where
                on the spindle shaft. A non-metallic fittings   spindle is in the fully open position.  necessary.
                cleaning pad is ideal for this. Re-grease the
                spindle using silicone grease.













                334





        9781510416482.indb   334                                                                                    29/03/19   9:00 PM
   341   342   343   344   345   346   347   348   349   350   351