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PO Box 430 Cleveland, OH 44107 • Phone (216) 521-8567 • Fax Local 521-9476 / USA & Canada (800) 344-9191
E-Mail: [email protected] • 

Website: www.martindaleco.com

HV-3 BENCH-TYPE UNDERCUTTER

INSTRUCTIONS

INITIAL ASSEMBLY:

Turn the vertical adjustment hand wheel (30-30) over and tighten the set screw.  Remove the
carriage stop screw with modified Black Tee Know from the end of the roller slide and install
the carriage assembly (30-2 etc) by inserting the carriage roller bearings into the notches of
the slides.  Replace the stop screw with Knob.  Three countersunk holes are provided for
screwing the base to a bench.

FOR SLOTTING HORIZONTAL COMMUTATORS:

Fasten the end of the operating handle (30-18) to the base of the carriage (30-2). Position
handle between dowel pins and thread bolt through spacer (30-21) into carriage base (30-
2).

FOR SLOTTING VERTICAL COMMUTATORS:

Fasten the end of the operating handle (30-18) to the bottom of the carriage lifting arm (30-
15).

CHANGING SAW SPINDLES:

To remove the spindle, first, remove the pulley guard (30-28).  Loosen the two hollow head
set screws in the motor support bracket (30-3) that hold the spindle in position.  Loosen the
tension on the drive belt and slip off the belt.  Slide out the spindle housing along with the
pulley.  When inserting the other spindle, push it through from the pulley side with the flats
in line with the set screw.  Insert the spindle until the flats are under the set screws.

ALIGNMENT:

Fasten a 6" rule or other thin metal straight edge to the saw spindle in place of a saw
(between saw retaining screw and spindle end) with the end of the rule hanging down sev-
eral inches.  Align the edge of the rule with the point of  the center support and tighten the
saw spindle in this position with the 2 set screws.

Summary of Contents for HV-3

Page 1: ...hrough spacer 30 21 into carriage base 30 2 FOR SLOTTING VERTICAL COMMUTATORS Fasten the end of the operating handle 30 18 to the bottom of the carriage lifting arm 30 15 CHANGING SAW SPINDLES To remove the spindle first remove the pulley guard 30 28 Loosen the two hollow head set screws in the motor support bracket 30 3 that hold the spindle in position Loosen the tension on the drive belt and sl...

Page 2: ...heavier work Using the operating handle push the carriage back until the saw is positioned to cut as close to the riser as desired Loosen the thumbscrew and set the stop rod to limit the carriage trav el With the saw at riser end of the commutator turn the motor on and lower the saw into the mica strip to the desired cutting depth using the hand wheel 30 30 on the vertical adjust ing screw The arb...

Page 3: ... handle can be raised up until the saw has cleared the commutator Index the commutator to line up the saw with the next mica strip push the operating handle forward with the saw still clear of the commutator and then lower the saw through this second strip etc MAINTENANCE The bearings in the saw spindle housing are lubricated when assembled and do not require periodic maintenance Tracks on which c...

Page 4: ...rizontal and vertical commutators are to be undercut the 3 16 spin dle is used with the 3 16 hole saws or V cutters SAWS U Slot Saws stocked in these thicknesses 015 018 020 023 025 026 028 030 032 035 038 040 043 045 050 053 055 058 060 063 065 Other thicknesses available at extra cost Type O D Hole No Teeth 9 1 2HS 5 16 1 8 16 32 HS 3 8 1 8 18 33 HS 3 8 3 16 18 12 HS 7 16 1 8 18 42 HS 1 2 1 8 18...

Page 5: ...SA Canada 800 344 9191 E Mail sales martindaleco com Website www martindaleco com H H H HV V V V 3 3 3 3 B B B Be e e en n n nc c c ch h h h T T T Ty y y yp p p pe e e e U U U Un n n nd d d de e e er r r rc c c cu u u ut t t tt t t te e e er r r r 30 15 30 21 30 18 30 2 ...

Page 6: ... for Stop Rod HV3U3019 1 Stop Rod HV3U3020 1 Spacer HV3U3021 1 Washer for Adjusting Screw HV3U3022 1 Roller Rail L HV3U3023L 1 Roller Rail R HV3U3023R 2 Motor Support Guide Rail Vertical HV3U3024 1 Spindle Screw specify 1 8 or 3 16 HV3U3025 18 or 316 1 Front Shield HV3U3026 1 Rear Shield HV3U3027 1 Belt Guard with Brackets HV3U3028 1 Hand Wheel HV3U3030 1 Motor 115V or 230V w Cord Switch HV3U12656...

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