Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-03-A4 – 06/15
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6. Select a shim thickness to satisfy the following chart (each shim is .030"):
Table 4: Gap “A” shim thickness selection chart
Shim Thickness for Gap “A”
Dimension “A”
Nominal shim thickness at gap “A”
Greater than
Less than or equal to
0"
0 mm
.030"
0.76 mm
.03"
0.76 mm
.030"
0.76 mm
.060"
1.52 mm
.06"
1.52 mm
.060"
1.52 mm
.090"
2.29 mm
.09"
2.29 mm
.090"
2.29 mm
.120"
3.05 mm
.12"
3.05 mm
.120"
3.05 mm
.150"
3.81 mm
.15"
3.81 mm
.150"
3.81 mm
.180"
4.57 mm
.18"
4.57 mm
7. Install O-rings (piece 43 and 44) on Bushing (piece 4-1). Install the proper thickness of shims, based on step 6, on the Handwheel
Shaft (piece 2). The shims must rest on the major shaft diameter and be held in place by installing the Handwheel Bushing (piece 4-1)
with O-rings (piece 43 and 44). The shims that fill gap “A” must lie between the Handwheel Bushing (piece 4-1) and the Handwheel
Shaft Washer (piece 52). Refer to figure 18 for assembly parts drawing.
8. Install Handwheel Spacer (piece 4-2) and Retaining Ring (piece 4-3) on the Handwheel Shaft (piece 2) and insert Handwheel Shaft
Assembly into actuator Housing.
9. Install the remaining shims (that were not used at gap “A”) over the Handwheel Spacer (piece 4-2) and against Handwheel Bushing
(piece 4-1). The proper thickness for shims at gap “B” is determined based on the total shim thickness for gap “A” and gap “B”
combined being .18 inches (4.57 mm) total. See Figure 20 and Table 4.