Fluid Stop Valve Maintenance - Sullair LS-25S Operator's Manual And Parts List

Industrial rotary screw air compressor

Table of Contents

Section 6

MAINTENANCE

gap and angular alignment as indicated in Table 1.

To determine the angular misalignment in inches,

measure the maximum space between the hub

flanges and the minimum space 180_ away, and

then subtract. To adjust the horizontal angular

misalignment, loosen the motor mounting bolts

and adjust the motor position until the angular

alignment is within tolerance.

DO NOT upset the offset alignment or hub gap

when adjusting motor position.

When within the limits specified in Table 1, tighten

the motor mounting bolts and recheck the offset

and angular alignment. If the vertical angular align-

ment is not within .010 tolerance, shim the front or

rear of the motor separately to correct. Recheck the

vertical offset.

TABLE 1

INSTALLATION DATA

Tightening

Coupling

Torque

Gap

ft.---lbs.

inches

200

2.969 + .300

(271NM)

(75.4mm + .076) (.254mm)

(I) Angular misalignment in inches equals maximum A mi-

nus minimum B as shown in Figure 6---7. DO NOT ex-

ceed values in Table above.

STEP 4 INSTALL THE FLEXIBLE ELEMENT --- Po-

sition the motor and compressor key ways 180_

apart. Insert the flexible element between the two

hubs. The element should be compressed prior to

insertion. The element can be compressed by

tightening a suitably sized radiator hose clamp

around the outer edge of the element as shown in

Figure 6---6. Slide the ferry head capscrews with

lockwashers through the holes in the hubs and ele-

ment. Tighten the bolts to 200 ft.---lbs. (271 Nm).

Capscrews are 3/4

coated. DO NOT substitute with any other bolts.

After tightening the capscrews, tighten the shaft

setscrews and remove the hose clamp from the

flexible element. At this time, the coupling is ready

for operation.

DRIVE COUPLING DISASSEMBLY AND RE-

MOVAL

Disassembly and removal of the drive coupling is

done in the following manner:

WA R N I N G

Max. Operating Misalignment

Parallel

Angular

Offset

inches

.010

--- .000

(.254mm)

--- .000

NOTE

---

10 x 4" NAS 144 black oxide

1. Place a suitably sized radiator hose clamp over

the flexible element as shown in Figure 6---6 and

tighten a sufficient amount to compress the rub-

ber.

2. Remove the ferry head bolts from the hubs and

element.

3. Rotate the element until the studs clear the hubs.

4. Remove the element from the hubs with the hose

clamp still in place.

5. Loosen the shaft setscrews and remove the

hubs.