Section 5 • Maintenance/Service
GATE ROTOR THRUST BEARING REMOVAL For removal of thrust bearings on VSG units:
7.Remove bolts (150) from the clamping ring (114), see Figure
8.Remove thrust bearing clamping ring.
9.Remove thrust bearings (126) from housing (113).
For removal of thrust bearings on VSSG units:
10.Remove retaining ring from gate rotor support.
11.Remove bearings from support.
12.Remove bearing retainer from inner race.
Figure 5-26. Gate Rotor Thrust Bearing
GATE ROTOR THRUST BEARING INSTALLATION
For installation of thrust bearings on VSG and VSSG units:
13.Install thrust bearings (126) in the housing so the bearings are face to face. The larger sides of the in- ner races are placed together. A light application of clean compressor lubricating oil should be used to ease the installation of the bearings into the housing.
14.Center the bearing retainer ring on housing, use Loctite®
For installation of thrust bearings on VSG 301- 701 units:
15.Install retainer in the back of the inner race of one of the thrust bearings. The back of the inner race is the narrower of the two sides.
16.The bearing with the retainer should be placed in the housing first, retainer towards the support. Install the second bearing. The bearings should be positioned face to face. This means that the larger
sides of the inner races are placed together. A light application of clean compressor lubricating oil should be used to ease the installation of the bear- ings into the gate rotor support.
17. Install the bearing retaining snap ring.
Figure 5-27. Thrust Bearing Installation
GATE ROTOR ROLLER BEARING REMOVAL
18.Remove the snap ring (131), which retains the roll- er bearing in the bearing housing, see Figure
19.Remove the roller bearing (125) from the bearing housing (112).
20.Use a bearing puller to remove the roller bearing race (125) from the gate rotor support (110).
GATE ROTOR ROLLER BEARING INSTALLATION
21.Match up the part numbers on the inner race to the part numbers outer race. Press the bearing race (numbers visible) onto the gate rotor support.
22.Install the outer bearing into the bearing housing so the numbers match the numbers on the inner race. Install the snap ring retainer in the housing.
VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG | 5 – 27 |
