Gaterotor Inspection; A) Gaterotor - Main Housing Shelf Clearance - Emerson VILTER VSS Installation, Operation And Service Manual

Section 5 • Maintenance/Service

Gaterotor Inspection

A) Gaterotor - Main Housing Shelf Clearance

Follow these steps to check the clearance between
the gaterotor and the shelf, which should be between
0.003" – 0.004", see Figure 5-11.
1. Place a 0.003" feeler gauge between the gaterotor
teeth, as shown in Figure 5-12 (a) and (b).
Make sure the feeler gauge stays in the opening between
the two teeth until it is on top of the shelf.
2. Without moving the feeler gauge, slowly rotate the
gaterotor so that the feeler gauge tip stays between
the gaterotor and the shelf. See Figure 5-12 (c).
CAUTION
Do not over rotate. If the rotor catches the feeler
gauge, a piece can break and fall into the rotor groove.
3. Gently pull the feeler gauge out in the direction
shown in Figure 5-12 (d).
(a) Feeler Gauge Placement (Side View)
(c) Tip Of The
Feeler Gauge Stays
Between Gaterotor
And Shelf While
Rotating
Figure 5-12. Gaterotor and Shelf Clearance Measurement Steps
5 – 16
VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S
NOTE
Check for 0.003-0.004" (0.076- 0.102 mm) clearance
between gaterotor blade and shelf.
Figure 5-11. Gaterotor and Shelf Clearance
(b) Feeler Gauge
Placement
(Top View)
(d) Feeler Gauge
Must Be Pulled
Out In This Direc-
tion