SPX FLOW Johnson Pump CombiProLine OH3, Инструкция по эксплуатации

Страница: 37 / 67

CRL/EN (1810) 2.2
Disassembly and assembly 35
CombiProLine
7.9 Bearing OH3
7.9.1 Instructions for assembly and disassembly of bearings
➢
First read the following instructions regarding assembly and disassembly. Follow these
instructions closely when assembling and disassembling bearings.
Disassembly:
• Use a proper puller to remove the bearings from the pump shaft.
• If no proper puller is available, carefully knock at the inner raceway of the bearing. Use
an ordinary hammer and a mild steel drift for this.
Never knock at the bearing with a hammer!
Assembly:
• Make sure your working place is clean.
• Leave the bearings in their original packing as long as possible.
• Make sure the pump shaft and the bearing seats do have a smooth surface, free of
burrs.
• Slightly oil the pump shaft and the other relevant parts before assembly.
• Preheat the bearings to 90°C before mounting them on the pump shaft.
• If preheating is not possible: knock the bearing onto the pump shaft. Never knock at
the bearing directly! Use a mounting bush positioned against the inner raceway of
the bearing and a normal hammer (a soft hammer might loose some splinters which
could damage the bearing).
• Always apply a new locking washer (2570) when assembling bearings!
7.9.2 Disassembling bearing
1 Dismantle the impeller and the shaft seal, see paragraph 7.7.1 "Disassembling the
impeller" and paragraph 7.8.2 "Disassembling a cartridge seal".
2 Remove the deflector (2220).
3 Remove the coupling with a coupling puller and remove the coupling key (2210).
4 Unscrew the Allen screws (0940) and remove the assembly plate (0275).
5 Remove the deflector (2180).
6 Unscrew the Allen screws (2810 and 2815) and remove the bearing covers (2110
and 2115).
7 Knock at the pump shaft (2200) at the impeller side to loosen the bearings from the
bearing bracket. Use a plastic hammer to avoid damage to the thread.
8 Remove the inner circlip (2300).
9 Knock the lip of the locking washer (2570) out of the lock nut (2560) and loosen the
lock nut.
10 Remove the bearings from the pump shaft.
11 Remove the adjusting ring (2375), the Nilos rings (2320 and 2310) and the inner
circlip (2300).
12 Remove the outer ring of the cylindrical roller bearing (2250).