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Section 6

MAINTENANCE

the keys in position being sure that the end of the

key is flush with the end of the shaft. Secure the

compressor hub on the shaft with setscrews. Place

the element between the hubs and push the motor

hub to engage the element. After engaging the ele-

ment, set the motor hub for the proper gap as spec-

ified in Table 6-1 Installation Data, and secure the

motor hub with a setscrew. When the hub gap is

properly set, you will be able to move the element

in a slight back and forth motion (unless the cou-

pling is extremely out of alignment.

STEP 2 - ANGULAR ALIGNMENT

Clean fluid and dirt from the hubs in preparation for

angular alignment. Position the dial indicator on the

hubs as shown in Figure 6-8. Rotate both hubs

equally to check alignment.

STEP 3 - PARALLEL OFFSET ALIGNMENT

Reposition the dial indicator as shown in Figure 6-

8. Rotate both hubs equally to check for misalign-

ment. Parallel offset alignment is equal to 1/2 the

Figure 6-5 Pressure Regulator Adjustments

Table 6-1 Installation Data

Max. Operating Misalignment

Parallel Coupling Angular

Offset Gap

inches/mm +.03 in./ .762mm Degrees inches/ mm (I)

.008/ .02 1.38/ 35.0mm .025 .005/ 127mm

(I) Angular misalignment in inches equals maximum A minus mini-

mum B as shown in Figure 6-6. DO NOT exceed values in Table

6-1 above.

Figure 6-6 Drive Coupling Alignment

Figure 6-7 Drive Coupling

Sullair LS16T User Manual

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