Gardner Denver STP 125 User manual

MIS TP 125/E N1/07 0 1
OPERATION,
AINTENANCE
and
INSTALLATION
MANUAL and
PARTS LIST
ROTARY
LOBE
PUMP
STP 125
STP125
VERSION: 03
February 3, 2015

1.0 General Page No
1.1 Pump limits of application or use
1
1.
2
Duty
conditions
1
1.
3
Noise
levels
1
1.
4
Utility
requirements
1
1.
5
Safety
precautions
2
1.
6
Health
and
safety
information
3
2.0 Unpacking, handlingand storage
2.1 Documents
4
2.2
Unpacking
4
2.3
Handling
4
2.
4
Pump
storage
4
3.0 Description ofpump or pump unit
3.1 General pump description
5
3.
2
Principle
of
operation
5
3.
3
Pump
dimensions
6
3.
4
Pump
weight
6
3.
5
Pump
displacement
6
3.
6
Pump
information
chart
6
3.
7
Pressure
relief
valve
6
4.0 System Design and Installation
4.1 System design advice
7
4.
2
Direction
of
rotation
7
4.3
Pipework
8
4.
4
Port
orientation
8
5.0 Commissioning
5.1 Lubricating the pump 9
5.2 Recommended lubricants 9
5.3 Changing the oil 9
5.4 Oil capacity 9
6.0 Start Up, Shut Down and Cleaning in Place
6.1 Pump start up checklist 10
6.2 Pump shut down procedure 11
6.3 Cleaning in Place (CIP) 12
STP125 Page
1

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 Singlemechanicalseal 21
11.2 Singlemechanicalsealremoval 21
.
STP125 Page
2

Operatio
n
Manual
Page No
11.3 Singlemechanicalsealfitting 22
12.0 Pump heating tank
12.1 Heatingtankremoval 23
12.2 Heatingtankfitting 23
13.0 Relief valve
13.1 Disassembly-reliefvalve 24
13.2 Assembly-reliefvalve 24
14.0 Faults, causes and remedies 25
15.0 Torque settings/spanner sizes 26
16.0 Exploded view drawing and parts list 28
STP125 Page
3