Hougen HMD904C Operator'S Manual Download Page 7

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INSTALLING HOUGEN CUTTER IN ARBOR

1.  Disconnect from power source.
2.  Lay drill on its side with feed handles up or be sure Arbor clears table if unit is in normal operating position.
3.  Turn Feed Handles until cutter mounting set screws are exposed and completely remove the set screws.
4.  Insert proper pilot in shank end of Hougen Cutter.
5.  Insert Hougen Cutter until ﬂ at on cutter shank is aligned with set screw holes and is exactly perpendicular to

axis of set screw holes.

6. Insert set screws and tighten. Check to be certain that cutter is secure.

ADJUSTMENT OF GIBS

1. Loosen all Gib Screws (40237).
2. Feed the drill in and out a few times and then, with top of motor slide ﬂ ush with top of housing, tighten the Gib

Screws until you feel them touch the Steel Gib (02431).

3. Feed the drill in and out again.
4. Adjust Gib Screws so that there is uniform pressure from top to bottom. (Top of motor slide ﬂ ush with top of

housing.)

5. Turn each Gib Screw in about 1/8 to 1/4 turn, depending upon your preference.
6. Gibs should be tight enough so that slide moves up and down smoothly with no wobble or shaking.

(Looseness will cause cutter breakage.)

NOTE: Gibs should be lubricated regularly.

OPERATION OF CUTTING FLUID RESERVOIR

1. With Magnetic Drill in operating position, turn the feed handles so that cutter and pilot are above the work surface.
2. With magnet turned ON and motor OFF, ﬁ ll reservoir by introducing cutting ﬂ uid through slots in Arbor.

Cutting ﬂ uid should not leak out.

3. Test metering capabilities of Arbor/Cutter/Pilot assembly (magnet ON-motor OFF) by feeding the Arbor gently

toward work surface until pilot is pushed up into Cutter, thus allowing ﬂ uid to ﬁ lter down onto work surface

through groove in pilot.

4. For proper lubrication, all cutting ﬂ uid in reservoir should empty onto work surface in no less than 15 seconds

and no longer than 30 seconds.

Adjust Gibs before adjusting front support bracket.

1. Loosen Arbor Support Bracket Bolts.
2. Be sure top of arbor is ﬂ ush with the shoulder on motor output shaft. Also make certain arbor is securely

fastened.

3.  Turn feed handle until motor and spindle are at the bottom of their travel.
4.  Tighten Arbor Support Bolts.
5.  Feed slide up and down a few times, checking for free and uniform movement.

NOTE: Check Arbor support bolts regularly to make certain they are tight. Tighten as required.

ARBOR ADJUSTMENT

Removal

1. Loosen arbor support bracket bolts.
2. Loosen set screws holding arbor onto motor output shaft.
3. Remove arbor.

Installation

1.  Hand tighten front support bracket bolts. Do not tighten all the way.
2. Slide arbor to full up position and hold arbor in position over hex drive motor output shaft.
3.   Tighten the two set screws in small increments, alternating between the two until the screws are tight.
4.   Turn feed handle until motor and arbor are at the bottom of their travel.
5.   Tighten front support bracket bolts to 400 in/lbs.
6. Run motor for 10 seconds. (If visual movement of arbor is noticed, restart at step 1)
7. Re-check for tightness of arbor set screws.

ARBOR & FRONT SUPPORT BRACKET

REMOVAL AND INSTALLATION