7.0
Maintenance and inspection
Page No
7.1
Maintenance schedule
13
7.2
Recommended spare parts
13
7.3
Maintenance tools
13
8.0
Disassembly
8.1
Before dismantling the pump
14
8.2
Removing the front cover
15
8.3
Removing the rotors
15
8.4
Product seal removal
15
8.5
Removing the rotorcase
15
8.6
Removing the shaft sleeves and shims
16
8.7
Draining the pump of lubricant
16
8.8
Removing the front seal retainers
16
8.9
Removing the gear housing
16
8.10 Removing the timing gears
16
8.11 Shaft and bearing removal
16
9.0
Assembly
9.1
Fitting shafts into the bearing housing
17
9.2
Fitting the front seal retainers
17
9.3
Fitting timing gears and setting rotor timing
17
9.4
Adjusting the rotor timing
18
9.5
Fitting the gear housing
18
9.6
Setting the rotor clearances
19
9.7
Fitting the seal
19
9.8
Fitting the rotors
19
9.9
Fitting the front cover
19
10.0
Replacing 'O' ring seal
10.1 Product 'O' ring seal replacement
20
10.2 'O' ring seal fitting
20
10.3 To remove the seal housing
20
10.4 Seal housing fitting
20
11.0 Replacing mechanical seal
11.1 Single mechanical seal
21
11.2 Single mechanical seal removal
21
.
STP125 Page 2
