Powerex SBS0307, SBS0507, SBS1307, SBS1517 Replacement (Continued), ! CAUTION, Tip Seal Set

								Scroll Air Compressors
								both the dust seal and backup tube
	Tip Seal Set
								located on outermost side FS set.
	Replacement (Continued)						4. Insert new backup tube in the FS
								Scroll in the 6 o’ clock position (See
	INSERTING TIP SEALS
								Figure 10).
NOTE: Tips seals for Fixed Scroll and							5. Insert new dust seal on the backup
Orbit Scroll have opposing seal cut
			Figure 8					tube. Face seamed section of the
angels (See NOTE and explanatory dia-
								dust seal in the 3 o’clock position
gram below).
		2. Insert so that new LP tip seal will						(See Figure 10).
Insert tip seal so that the lip of tip seal
				contact closely with HP tip seal			8. After replacing tip seal set, reassem-
is on the bottom of seal groove and
				inside Scroll Groove (See Figure 7				ble Fixed Scroll set to the Orbit
inner side of involute and the direction
				on page 4).				Scroll. Tighten 6 nuts temporarily
of lip faces the center of involute (curv-
						Insert approxi-		and confirm if crankshaft rotates
ing spiral). See Figure 9. This is to be				! CAUTION		mately half of the		smoothly by hand and tighten them
done for both FS and OS sets.		LP tip seal and remove the tip seal to						firmly. Tightening torques are:
Use caution not to tear or distort lip.		confirm that a notch in the tip seal has
1. Insert new HP tip seal from the cen-		been achieved. This will prevent move-						Bolt
		ment during installation (See Figure						Torque	First	Second
	ter section for OS or Orbit Scroll so	11).
	that there will be no clearance at the	3. Repeat the same procedure for FS
								SLAE03/SLAE03HP	15 in lb. 175 in lb.
	tip (start) section (See Figure 8			or Fixed Scroll tip seal set, remove				SLAE05/SLAE05HP	15 in lb. 175 in lb.
	and 9).
							NOTE: Assemble so that dust seal and
	Lip Direction						tip seal will not drop between Orbit
					Enter		Scroll set and Fixed Scroll set.
					Side
	Lip Side
	(Grooved Bottom)
	Lip Surface
	(Inside)
										3 o’clock
										Position

Figure 9

Dust

Seal

Back-up

Tube

	Machined	6 o’clock
		Position
	To Avoid Movement
Figure 11	During Installation	Figure 10

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