Liquid Controls Avery-Hardoll BM Series, Maintenance Manual And Parts List

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TP0003B
BM BULKMETER
Chap 5
Page 12
SERVICING
10.21 In the position shown in Fig 5.8 check the clearance between the tip of the vane and the bore of the
body (Table 1 Item 2). The clearance should be equal at each end of the vane to within .05mm
(.002in). If the clearance is incorrect, reset the vanes by the adjusting nuts using special spanner
TASZ 5008.
FIG 5.8 VANE CLEARANCE
0.15 to 0.25 mm
(0.006 to 0.010 in)
CLEARANCE BETWEEN
TIP OF VANE AND BORE
OF BODY
Measuring position A
Measuring position B
10.22 Remove rotor assembly and locate compression spring (13) into the rear inner cover. Refit rotor
assembly.
10.23 Remove rotor tool and fit a new ’O’ ring seal (8) to the body and locate the front inner cover into
position over the dowels (4), secure with two screws (9).
10.24 If the spindle seal (16) has been removed, press the new seal into the front outer cover (14) with the
spring towards the rotor. Refit the backing washer (17) and seal retaining plate (18), secure with
three screws (19).
10.25 Fit a new ’O’ ring seal (15) to the front outer cover. Locate the cover into position. Ensure the two
sealing bolts (21) are correctly located, secure the front cover with bolts (21 and 22), nuts (25) and
washers (24).