Model Identification, Throttle Section

MODEL IDENTIFICATION

MODEL	HOUSING	MOTOR	COLLET	COLLET
NUMBER		ASSEMBLY	ASSEMBLY	CAPACITY
7978	46114	46112	46119–2	1/8”

7978–1	46114	46112–1	46119–3	3 mm

7978–2	46114	46112–2	46119–1	3/32”

7978–EU	49914	46112–1	46119–3	3 mm

MODELS WITH –EU SUFFIX ARE ‘‘EC” COMPLIANT MODELS.

DISASSEMBLY/ASSEMBLY INSTRUCTIONS

Disconnect air supply from tool or shut off air supply and drain line of compressed air before performing maintenance or service to tool.

Before starting to disassemble or assemble this tool (any part or completely), be sure to read ‘‘Inspection, Maintenance and Instal- lation” section.

To minimize the possibility of parts damage and for convenience, the steps for disassembly or assembly listed on the following pages are recommended.

The basic sections and instructions for removing them from the

tool are as follows:

THROTTLE SECTION

Remove hose assembly from tool. Using 11/16” diameter blocks, clamp housing (46114 or 49914) in a vise (see grip area below) and unthread throttle section from housing. NOTE: Thread adhe- sive has been applied to these threads.

MOTOR SECTION

After removal of throttle section, motor assembly can be removed from the housing.

		(ATP–59)


	THROTTLE SECTION
	DISASSEMBLY	to clean screen. Whenever a part containing ‘‘O” rings has
		been removed from the tool, it is recommended the ‘‘O” rings
_ Remove throttle as outlined above.		be replaced with new ones before assembling the part to the
_ Remove pipe fitting (Y43–41–C) from throttle.		tool. Lubricate all ‘‘O” rings with ARO 36460 lubricant at as-
_ Remove snap ring (Y110–5).		sembly.
_ Remove sleeve (46106) for access to two ‘‘O” rings		_ Assemble two ‘‘O” rings (Y325–10) and ‘‘O” ring (Y325–12) to
	(Y325–10) and ‘‘O” ring (Y325–12).	throttle.
	ASSEMBLY	_ Assemble ‘‘O” ring (Y325–13) to throttle.
		_ Slide sleeve (46106) onto throttle and secure with snap ring
		(Y110–5).
_ NOTE: Throttle contains an internal filter screen. Wash throttle		_ Assemble pipe fitting (Y43–41–C) to end of throttle.
	thoroughly in clean solvent and blow air backward thru throttle