Challenge EH-3C Service Manual
Challenge EH-3C Service Manual

Challenge EH-3C Service Manual

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The
Challenge
Machinery
Company
provides
owner's
manuals on its products solely as a courtesy to its customers.
See the information below before using this manual.
These manuals are for reference only. These manuals include products which are non-
current, unsupported or no longer produced by The Challenge Machinery Company, and are
provided solely as an accomodation to our customers. By providing these manuals, The
Challenge Machinery Company makes no representation or warranty as to the products,
their current condition, or their suitability or fitness for use in any particular application, which
are the sole and independent responsibility of the product owner and user.
Older products may not comply with current safety procedures, guidelines or regulations,
and it is the product owner's and user's responsibility to evaluate the suitability and fitness of
the products in their current use and application. The Challenge Machinery Company makes
no representation, warranty or recommendation regarding any modifications which may be
required on non-current or unsupported products. The Challenge Machinery Company
assumes no liability for any modification or alteration to any Challenge product, and any such
modification or alteration to any Challenge product is not authorized by The Challenge
Machinery Company. The availability of these manuals is solely for the purpose of providing
reference information for the products.
This
manual may not be
complete
in
all aspects of product
maintenance and repair. All
products should be used only by qualified and properly trained personnel, following proper
safety procedures. All products should be regularly inspected and maintained, and their condition,
application and use should be periodically evaluated by qualified personnel. Only qualified and
properly trained technicians should
perform maintenance, repair and replacement
procedures. Attempting these procedures without proper training may cause machine
damage or operator injury!
Products may be unsupported by The Challenge Machinery Company due to age or the
unavailability of parts from their original manufacturer. No parts or product support will be
available to repair or maintain unsupported products. Older products may not be UL listed (if
the product does not have a UL label it is not a listed product), and may not comply with
applicable installation or other regulations or requirements if relocated to a new facility.
Many municipalities require
a
product to be UL listed before
an electrician
will
connect power
to them. Often the cost of updating an older product to comply with current safety regulations is
greater than the value of the product.

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Summary of Contents for Challenge EH-3C

  • Page 1 The Challenge Machinery Company assumes no liability for any modification or alteration to any Challenge product, and any such modification or alteration to any Challenge product is not authorized by The Challenge Machinery Company.
  • Page 2 Serial Numbers 995774 & Up ECHNICAL ERVICE ARTS ANUAL MODEL EH-3C PAPER DRILLING MACHINE Sold and Serviced by The Challenge Machinery Company 6125 Norton Center Drive Norton Shores, MI 49441-6081 USA ChallengeMachinery.com F. 352-KT August 2003...
  • Page 3: Introduction

    Always give the SERIAL NUMBER and MODEL of your machine to insure that the correct parts are sent as soon as possible. Challenge® is a registered trademark of The Challenge Machinery Company. 6125 Norton Center Drive, Norton Shores, MI 49441-6081. Copyright © 2003 by The Challenge Machinery Company. All rights reserved. Printed in the U.S.A.
  • Page 4: Table Of Contents

    HYDRAULIC POWER UNIT .............. 2-15 TABLE ASSEMBLY ................2-16 BACKGAUGE ASSEMBLY ............... 2-18 OPTIONAL AUTO-TRIP BACKGAUGE ASSEMBLY ......2-20 SPINDLE HEAD ASSEMBLY, RIGHT HAND ........2-22 SPINDLE HEAD ASSEMBLY, LEFT HAND ........2-23 OPTIONAL DRILL SHIELD KIT ............2-24 F.352-KT/EH-3C DRILL/AUG 03...
  • Page 5 NOTES F.352-KT/EH-3C DRILL/AUG 03...
  • Page 6: Safety Precautions

    • READ and understand all instructions thoroughly before using the machine. If questions still remain, call your Authorized Challenge Dealer - Failure to understand operating instructions may result in personal injury. •...
  • Page 7: Warning Label Definitions

    HAZARDOUS AREA Disconnect power before cleaning, servicing, or making adjustments not requiring power. Do not alter safety guards or devices, they are for your protection. Re- place all guards, do not operate with any guards re- moved. F.352-KT/EH-3C DRILL/AUG 03...
  • Page 8: Maintenance

    Challenge. The Challenge Machinery Company assumes no liability for any modification or alteration to any Challenge products, and any such modification or alteration to any Challenge products is not authorized by The Challenge Machinery Company. Any modification or alteration of any Challenge product will void any remaining warranty.
  • Page 9: Troubleshooting

    Check for low voltage. (See above). Drive belt may be loose. Adjust belt tension. (See Adjustment section of this manual). Check for paper plugging drills Clean out hollow drills - We recom- mend cleaning and soaking drills in oil overnight. F.352-KT/EH-3C DRILL/AUG 03...
  • Page 10: Routine Maintenance

    1. Check the drive belt tightness and wear. The drive belt must be kept tight or it will stall the motor and plug or break the drills. See Section 1.3.2 for in- structions on how to tighten the belt. F.352-KT/EH-3C DRILL/AUG 03...
  • Page 11: Belt Tightness Adjustment

    Loosen the two set screws (fig. 1-1). Turn the Adjust- ment Screw (fig. 1-1) to move the motor in and out as needed. The belt must be tight enough that it does not slip. Tighten both set screws when finished. (fig. 1-1) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 12: Drill Head Replacement

    Use 1. Remove cover. the wood block from the previous step to protect 2. Remove belt. the spindle. 3. Remove chip pan assembly. 9. Replace the chip chute and pulley. F.352-KT/EH-3C DRILL/AUG 03...
  • Page 13: Hydraulic

    Through normal use, hydraulic systems gum up and seals wear. Signs of wear are hydraulic leaks and er- ratic operation of the vertical speed. Check with your Authorized Challenge Dealer for a current repair and/or replacement policy. Replace oil yearly. (Capacity: 1 Quarts/1.4 liters)
  • Page 14: Parts Lists

    HYDRAULIC POWER UNIT ..............2-15 TABLE ASSEMBLY ................2-16 BACKGAUGE ASSEMBLY ..............2-18 OPTIONAL AUTO-TRIP BACKGAUGE ASSEMBLY ......... 2-20 SPINDLE HEAD ASSEMBLY, RIGHT HAND ..........2-22 SPINDLE HEAD ASSEMBLY, LEFT HAND ..........2-23 OPTIONAL DRILL SHIELD KIT ..............2-24 F.352-KT/EH-3C DRILL/AUG 03...
  • Page 15: Main Assembly - Front View

    2.0 PARTS LISTS MAIN ASSEMBLY - FRONT VIEW A-5846-9 SHEET 1 OF 5 (REV. G) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 16 2.0 PARTS LISTS MAIN ASSEMBLY - FRONT VIEW A-5846-9 SHEET 1 OF 5 (REV. G) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 17 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03...
  • Page 18 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03...
  • Page 19: Main Assembly - Lower Right View

    2.0 PARTS LISTS MAIN ASSEMBLY - LOWER RIGHT VIEW A-5846-9 SHEET 3 OF 5 (REV. A) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 20: Main Assembly - Top View

    2.0 PARTS LISTS MAIN ASSEMBLY - TOP VIEW A-5846-9 SHEET 4 OF 5 (REV. D) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 21: Main Assembly - Wiring

    2.0 PARTS LISTS MAIN ASSEMBLY - WIRING A-5846-9 SHEET 5 OF 5 (REV. G) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 22 2.0 PARTS LISTS MAIN ASSEMBLY - WIRING A-5846-9 SHEET 5 OF 5 (REV. G) F.352-KT/EH-3C DRILL/AUG 03...
  • Page 23 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-10...
  • Page 24 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-11...
  • Page 25 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-12...
  • Page 26 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-13...
  • Page 27 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-14...
  • Page 28 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-15...
  • Page 29 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-16...
  • Page 30 2.0 PARTS LISTS INTENTIONALLY BLANK F.352-KT/EH-3C DRILL/AUG 03 2-17...
  • Page 31 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-18...
  • Page 32 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-19...
  • Page 33 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-20...
  • Page 34 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-21...
  • Page 35: Spindle Head Assembly, Right Hand

    2.0 PARTS LISTS SPINDLE HEAD ASSEMBLY, RIGHT HAND A-5847-1-6-R F.352-KT/EH-3C DRILL/AUG 03 2-22...
  • Page 36: Spindle Head Assembly, Left Hand

    2.0 PARTS LISTS SPINDLE HEAD ASSEMBLY, LEFT HAND A-5862-1-6-R F.352-KT/EH-3C DRILL/AUG 03 2-23...
  • Page 37 2.0 PARTS LISTS F.352-KT/EH-3C DRILL/AUG 03 2-24...
  • Page 38 2.0 PARTS LISTS NOTES F.352-KT/EH-3C DRILL/AUG 03 2-25...
  • Page 39 © 2003 by The Challenge Machinery Company. All rights reserved. Printed in the U.S.A. F.352-KT/EH-3C DRILL/AUG 03...

Table of Contents