4 tools required, 5 torques for fasteners, Flowserve pump division 37 – Flowserve Gearex Rotary Gear Pumps External and Internal Bearing User Manual
Page 37
EXTERNAL GEAREX USER INSTRUCTIONS ENGLISH 71569246 (2167B-E1)
Flowserve Pump Division 37
®
RECOMMENDED SPARE PARTS
NAME OF PART
QTY.
Rear Bearings (set)
1
Front Bearings (set)
1
Gasket (set)
1
Timing Gear (set)
1
Packing (set)
1
Oil Seals (set))
1
6.4 Tools required
No special tools are required for assembly or
disassembly.
6.5 Torques for fasteners
Recommended torques for tightening the bolts and
screws on the pumps are given in the following tables.
6.5.1 Carbon steel bolts/nuts SAE grade 2
(1)
Thread Size (Inch)
Recommended Torque Values (Ft-lbs)
3/8
17
½
40
5/8
80
¾
135
7/8
150
1
210
1-1/8
300
1-1/4
420
1-3/8
550
1-1/2
720
(1)
These values are also suitable for 300 series stainless
steel, Monel, Inconel, Hastelloy, B & C and Alloy 20 fasteners.
6.5.2
High strength steel bolts/nuts SAE
grade 5
Thread Size
(Inch
Recommended
Torque Values
(ft-lbs)
3/8
27
½
65
5/8
125
¾
225
7/8
365
1
545
1-1/8
675
1-1/4
950
1-3/8
1240
1-1/2
1430