TP0003B
BM BULKMETER
Chap 5
Page 13
SERVICING
11 CALIBRATING MECHANISM - Reassembly
11.1 Refer to Fig 5.5. Re-assemble components dismantled at Para 6.
11.2 Locate worm shaft (37) complete with friction roller (38) into gear bracket (12).
11.3 Locate calibrating screw (40) and ball race into gear bracket, screw in until the number of threads
protruding equal to that noted in Paragraph 6.7. The position of the friction roller (38) on the friction
disc (33) will be indicated by a circular mark on the ground face of the disc.
11.4 Tighten the clamping screw (42) and install the worm shaft retaining nut (41).
11.5 Align the planetary gear assembly, locate the gear bracket (12) into position and loosely secure it to
the base (1) with three screws (13) and washers (14).
11.6 Fit the two dowel pins (15) into the rear of the base, ensure that they locate into the holes in the gear
bracket.
11.7 Tighten the three bracket securing screws.
11.8 Ensure the gears correctly mesh and refit the register (58) to the base (1), secure with the four
screws (55), (56) and washers (57).
12 FINAL REASSEMBLY
12.1 Locate the calibrating mechanism assembly, complete with register, onto the front outer cover of the
meter, taking care not to damage the dowels (2). Secure in place with four bolts (3) and spring
washers (3A).
12.2 Position the calibrating mechanism cover (50), complete with a new gasket (54) and secure with
screws (13), (53) and washers (14).
12.3 Prior to re-installing or storage carry out the appropriate actions as detailed in Chapter 4.
12.4 Renew all sealing washers, sealing wires and lead seals.
13 METER TESTING
13.1
13.2
On completion of overhaul, bulkmeters may be tested on a special rig with suitable proving tanks.
Alternatively, an Avery -- Hardoll brand Master Meter may be used.
Instructions for operating the Master Meter and carrying out testing are c
ontained in
a separate
manual, Liquid Controls Publication No. E1/351.
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