Evoqua H30 - Page 19

MAINTENANCE
.081/02-15 1-17
H-DRIVE BEARING CHECK POINTS
DRIVE BALL
DIAMETER
STOP
BLOCK
GAP
MAXIMUM
STOP
BLOCK GAP
GEAR /
HOUSING
CLEARANCE
H30, H30A 1.00”
25.4 mm
0.07”
1.778 mm
.225”
5.715 mm
0.25”
6.35 mm
H40, H40A, H40HD 1.00”
25.4 mm
0.07”
1.778 mm
.225”
5.715 mm
0.25”
6.35 mm
H60, H60A,
H60HD, H60AHD
1.25”
31.74 mm
0.093”
2.362 mm
.225”
5.715 mm
0.25”
6.35 mm
H80, H80A, H90, H90A,
HD90, HD90A
1.50”
38.1 mm
0.093”
2.362 mm
.225”
5.715 mm
0.25”
6.35 mm
Notes:
1. When stop block gap approaches 0.200" (5.08 mm), replacement of strip liners is
suggested
2. If stop block gap reaches the maximum allowable gap indicated, drive rebuild is
recommended.
3. If top of main gear and under side of stop blocks are scored or worn, a detailed
inspection of the drive mechanism by an Evoqua Field Technician is recommended.
4. If a stop block is missing, STOP the drive immediately, and contact sales
representative or Evoqua Field Service Manager.