Ingersoll-Rand 8670-( )-3( ) Double Hydraulic Check Assemblies, SET-UP Procedure, Spanner Wrench

DOUBLE HYDRAULIC CHECK ASSEMBLIES 46133-( )

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46132 BRACKET

	Y99-43 CAP	SCREW (2)
HYDRAULlC	HYDRAULlC	HYDRAULIC
CHECK	CHECK	CHECK "B"
ASSEMBLY NO.	"A"
46133-11	38922	38922
46133-12	38922	38922-1
46133-13	30922	38922-2
46133-22	38922-1	30922-1
46133-23	38922-1	38922-2
I38133-33 38922-2		38922-2	I

HYDRAULIC CHECK NO. 38922 = 1” STROKE,38922-1 = 2” STROKE.

46133-11AS-

The dual hydraulic check assembly (46133- ) is an accessory item used to replace the standard hydraulic check when addition- al thrust control during the drilling operation and/or at break- through is required.

The dual system can be used when two different thrust control re- quirements are needed - for example, a 2” stroke length check and a 1” stroke length check. When used together, the 2” stroke length check controls the initial part of the drilling operation and the 1” stroke is set to give additional control at breakthrough.

screw (Y157-64) from the trip bracket for use with the new trip bracket (46132).

Assemble adapter plate (48131) to trip bracket (46132) and se- cure with the two 1/4”- 20 x 1/2” long cap screws (Y94-40) and two washers (30997). Assemble the two clamping screws (Y9942) with washers (30997) and the adjusting screw (Y157-64) to trip bracket and assemble the trip bracket to tool. Position trip bracket on piston rod for desired stroke and tighten the two screws (Y99-42), securing trip bracket on piston rod.

MOUNTING INSTRUCTIONS

Remove hydraulic check assembly supplied with tool. Determine which of the three mounting positions on housing is best suited for the operation to be performed and assemble mounting bracket (46130) to housing using the three 1/4”- 20 x 5/8” long cap screws (Y99-458) and tighten securely. Insert hy- draulic checks thru mounting bracket, positioning for desired stroke and secure with the two 1/4”-20 x 1-114” long cap screws (Y99-43) and two washers (30997).

Remove trip bracket (44909) from tool and remove the two clamp- ing screws (Y99-42) and washers (30997) and the adjusting

SET-UP PROCEDURE

Basically, the set-up procedure for the dual hydraulic checks is the same as for the single hydraulic check, except you will be do- ing each step of the set-up twice. After the stroke length set-up is made, synchronize the two checks more or less by rotating the

feed rate adjustment of each check to approximately the same . number. This is when two checks of the same stroke lengths are being used to control thrust.

When using two checks of different stroke lengths, testing set-up on a few scrap work pieces will be the best way in determining proper rates of feed.

46253 SPANNER WRENCH

FOR REMOVAL OF 45159 BEARING LOCK SCREW, AVAILABLE AT EXTRA COST.

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