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			GUARDIAN I STANDBY VACUUM/PRESSURE SYSTEM
					BELLANCA  (17-31A)
				 INSTALLATION INSTRUCTIONS
 			


I.	TO INSTALL ON FIREWALL:

	A.	REMOVE ENGINE COWLING TO GAIN ACCESS TO FIREWALL.

	B.	POSITION PUMP/MOTOR ASSEMBLY AS SHOWN (REF. SHEET 4) AND
		MARK BASE MOUNT HOLES.

	C.	REMOVE UNIT AND MATCH DRILL MOUNTING HOLES IN FIREWALL.
		(#11 DRILL . 191 DIAMETER HOLES) CAUTION: PROIR TO DRILLING
		THRU FIREWALL. DETERMINE THAT THE AREA IN THE CABIN IS 
		CLEAR OF ELECTRICAL, PLUMBING, CABLE, ETC. IN AREA SELECTED. 	

	D.	SPOT FACE AFT FACE BASE PLATE (.250 DIAMETER HOLE) TO CLEAR
		EXISTING INTERFERRING RIVETS WHEN REQUIRED.  USE DRILL
		STOP TO PREVENT DAMAGE TO MOTOR UNIT.

	E.	POSITION AND SECURE PUMP/MOTOR ASSEMBLY TO FIREWALL USING
		FURNISHED MOUNTING HARDWARE.

II.	TO INSTALL CHECK VALVES, FITTINGS AND PLUMBING:

	A.	REVIEW ALL NOTES ON INSTALLATION DRAWINGS.

	B.	INSTALL  " T " FITTING,  ITEM 25,  IN EXISTING HOSE AS SHOWN
		REFERENCE SHEET 4.

	C.	VERIFY  DIRECTION OF FLOW OF CHECK VALVES, ITEM 24,  AND INSTALL
		AS SHOWN.  NOTE: "THIS SIDE UP" AS MARKED ON ITEM 24,  MUST BE
		TURNED TOWARD TOP.  ARROW ON VALVE INSTALLED AS SHOWN ON
		INSTALLATION DRAWING.

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