1Product Safety Information

1.1Intended Use

Warning

This is a conversion kit for a positive feed drill that is designed for fixtured drilling applications.

This equipment must not be modified in any manner unless approved in writing by Corvaer. All safety devices must be properly installed and maintained in good working order.

Any abuse or misuse of this equipment can cause equipment damage, death, or serious injury. Failure to observe all safety warnings could result in equipment failure or personnel injury.

1.2General Safety Instructions

For additional product safety information refer to Corvaer document CE-2009, General Safety Fixtured Drills.

These safety instructions must be accessible to the operator at all times. They must be shown and made available to all personnel involved in the operation of this equipment.

The operator must read and understand the safety instructions contained in this document before operating this equipment.

These safety instructions are not intended to be all inclusive. Study and comply with all applicable Federal, State, and local regulations.

Do not remove any labels from this equipment. Replace any label that has been damaged and cannot be easily read.

Warning

To avoid serious injury, keep hands free from rotating equipment.

Before operating this equipment, coordinate with your workplace safety professional to conduct a hazard assessment of the setup, operation, emergency shut down, start-up, and maintenance of this equipment prior to use. Always use identified safeguards, tooling, and safety procedures identified in the hazard assessment before operating this tool.

1.3Product Installation

Only qualified and trained personnel should install, adjust, repair or use this equipment.

Do not exceed equipment ratings. Never attempt to operate this equipment at more than its rated capacity. Overloading will cause equipment failure and possible personnel injury.

Refer also to the Operation Instructions supplied with the tool for complete instructions of Operation and Use.

1.4Operating Safety Considerations

Warning

• Do not remove any labels and replace any that are damaged or unreadable.
• Do not use this equipment in an explosive environment.
• Disconnect the air supply before performing any service or cutter changes.
• Make sure the air supply line is securely attached to the tool before operating.
• Keep hands away from the ejecting area near the nose unit.
• Use care when handling the sharp cutters.
• Keep clear of all moving parts during the tool’s operating cycle.
• Before starting the drilling cycle, make sure the nose piece is securely mounted.
• Before operating this equipment, run one non-cutting work test cycle.

1.5Storage Instructions

This equipment should be stored at temperatures of +40°–+100° F (4°–38° C) with a maximum relative humidity of 80%.

1.6Disposal

Observe all local disposal guidelines for all components of this equipment and its packaging.

1.7Safety Signal Words

1.8Equipment

If the tool is supplied with dedicated equipment, adhere to the following instructions as well as all safety instructions:

The gaps should be checked periodically to ensure proper tool performance. It is recommended for reaming/countersinking that the maximum gap be 1.3 times (1.5 in drilling) the initial maximum gap (generally H7/g6 by design) between the spindle and bushing.

Check that the jigs are clean without excessive gap and for concentric collet equipment without oil.

1.9Cutters

For optimal results, the cutter should be checked regularly:

• The cutting edges should be clear of chips.
• The lubrication holes should be clean and the lubricant should flow to the tip of the cutter.
• In case of deviation on the hole geometry, check the concentricity between the cutter body and the edges as well as the concentricity between the spindle and cutter. The deviation must not exceed a few thousandths of an inch.

1.10Safety Maintenance Checklist

Implement a comprehensive safety maintenance program to provide regular inspection for all phases of tool operation and air supply equipment. Replace worn or damaged parts using only genuine Quackenbush replacement parts manufactured by Corvaer. The use of parts other than those provided by the manufacturer may result in a drop in output or increased maintenance and may cancel the manufacturer’s warranty.

Never lubricate the tool with flammable or volatile liquid (gasoil, aircraft fuel, etc.). Disconnect the air supply before performing any maintenance on this equipment.

Only qualified and trained personnel should repair this equipment. Refer to the Sales and Service Center listing (Section 4) for authorized Corvaer repair facilities.

1.11Copyright Protection

Corvaer reserves the right to modify, supplement or improve this document or the product without prior notice. This document may not be reproduced in any way, shape or form, in full or in part, or copied to another natural or machine readable language or to a data carrier, whether electronic, mechanical, optical or otherwise without the express permission of Corvaer.

2Tool Conversion Instructions

2.1Conversion Parts

The 230QRM Mitis conversion updates a standard 230QR positive feed drill to the 230QRM version, adding the Mitis slip-clutch feed mechanism for controlled chip evacuation.

The following kits and components are required to complete the conversion. Order kits based on the nose mounting thread of your tool, then select the appropriate spindle feed gear and Mitis kit for your application.

Note: Mitis conversion is only possible with a fixed tool speed. It is not available on the 230QRV variable speed version.

Note: If you are converting the speed and/or feed as well, additional parts will be required that are not detailed in these instructions.

Main Conversion Kits — Based on Nose Mounting Thread

These kits contain all common parts required to convert a standard 230QR to the 230QRM version. You will also require a spindle feed gear and a Mitis™ kit to complete the conversion — these are ordered separately (see below).

Spindle Feed Gear

Part Number	Description
635711PT-05	Gear, Spindle Mitis Feed – .0005 IPR
635711PT-10-30	Gear, Spindle Mitis Feed – .001/.003 IPR
635711PT-20	Gear, Spindle Mitis Feed – .002 IPR
635711PT-45	Gear, Spindle Mitis Feed – .0045 IPR
635711PT-60	Gear, Spindle Mitis Feed – .006 IPR

Mitis™ Kit

Part Number	Description
92050331M5-10KIT	Mitis QB230 N=5, A=0.10
92050331M5-15KIT	Mitis QB230 N=5, A=0.15
92050331M5-20KIT	Mitis QB230 N=5, A=0.20
92050331M5-25KIT	Mitis QB230 N=5, A=0.25
92050331M5-30KIT	Mitis QB230 N=5, A=0.30
92050331M5-35KIT	Mitis QB230 N=5, A=0.35

Kit contents: Mitis Cam, Roller Cage and Rollers (5), Wave Springs (2), and 90245065 1.5 mm steel ball.

Note: 90245065 1.5 mm steel ball is supplied with both the Main Conversion Kit and the Mitis Kit.

Main Conversion Kit Contents

The kit contains parts for both the conversion and for replacement of wear items such as O-rings, snap rings and bearings during the conversion. See legend below.

Replacement Part   Part required to replace wear items during conversion.    Conversion Part   New part required for Mitis conversion.

2.2Gearhead Conversion

The parts below should be either converted or replaced as noted. Refer to the sectional drawing in Step 5 as well as the exploded view for conversion parts orientation.

Gearhead — Step 1

Remove Nose / Spindle / Spindle Guard

Remove the nose piece, spindle, and spindle guard from the tool per the standard 230 service procedure.

Set these components aside — they will be reinstalled using the new conversion housing at completion.

Gearhead — Step 2

Remove Air Hose & Feed Gears

• Disconnect and remove the air hose.
• Remove the differential gear assembly.
• Remove the spindle feed gear.

Gearhead — Step 3

Remove Upper Block

Remove the upper block assembly from the gearhead housing.

Note the orientation of all internal components before removal for reference during reassembly.

Gearhead — Step 4

Separate Gearhead from Power Unit

Separate the gearhead housing from the power unit body.

Keep all fasteners organized for reassembly.

Step 5 — Sectional Drawing Reference

Gearhead — Step 6

Remove All Parts from Housings & Install Spring Collar

• Separate housings and remove all internal parts.
• Install new spring collar (635710PT) with bearing.
• Transfer thrust washers from the original upper block.
• Ensure spring collar and thrust washers are oriented correctly — the bearing has a seal on one side and this should face the thrust washers.
• Refer to sectional drawing (Step 5) for orientation of spring washers.

Gearhead — Step 7

Install New Housing, Front Bearing & Mitis Components

• Transfer clutch parts from original housing cover to new cover (382582A5).
• Install new front bearing (635369PT).
• Install new spindle drive gear (617200A5).
• Install wavy washers (from Mitis kit) with wave spring washer (17653A5). Washer small side goes towards bearing.
• Install new Mitis feed gear and Mitis parts from kit onto feed gear.
• Note orientation of Mitis Cam in relation to gear and 1.5 mm steel retaining ball — flat side of cam goes towards gear.
• Grease Mitis parts, then reassemble into original angle head housing.

Parts: 635713PT Housing 1 9/16" OR 635714PT Housing 1 1/4" | 635709PT Bearing | Mitis Kit (cam, roller cage, rollers, wave springs) | 90245065 Ball 1.5 mm

2.3Power Unit Conversion

Power Unit — Step 1

Remove Backhead & Motor Package

Remove the backhead and motor package from the power unit body.

Keep all components organized and note orientation for reassembly.

Power Unit — Step 2

Replace Backhead with Mitis Backhead

Replace the existing backhead with the new Mitis backhead (642892PT).

Ensure all O-rings and seals are properly seated. The new Mitis backhead provides the pneumatic routing required for Mitis clutch operation.

Power Unit — Step 3

Replace Governor Valve & Reassemble

• Remove the governor from the motor and disassemble.
• Replace the governor valve with the new longer version (867185-M).
• Reassemble the governor and install on the motor.
• Reinstall and reassemble the complete base tool.
• Reassemble spindle/guard/etc. — refer to the Standard Tool Service Manual for additional instructions.

3Maintenance

The following recommendations are initial guidelines and should be adapted according to tool utilization.

* Recommended Service Interval is based on 3 possible factors — Calendar Time, Run Time or Run Cycles. The number achieved first should be used to set the maintenance schedule.
** Alternatively: Before or After Each Shift

For additional information or guidance please contact your local Corvaer representative at corvaer.com.

Mitis Grease Schedule

Use the table below to determine service cycle intervals based on your feed rate setting:

Full Maintenance Schedule

Applicable Tool Series: 230QR/230QB

Print and Use for Tool Checklist

Tool Serial Number:

230QRM Mitis  |  Date: _______________ |  Technician: _______________

#	Maintenance Item	Schedule	OK	Action Reqd
1	Clean tool — remove all chips/debris	Daily
2	Inspect air hose & all pneumatic connections	Daily
3	Check airline filter, regulator & lubricator	Daily
4	Check air supply pressure (90psi dynamic)	Daily
5	Check spindle stop nuts are securely mounted	Daily
6	Check all guards are fitted	Daily
7	Check for excessive vibration/unusual noise	Daily
8	Inspect external components & indexer (if fitted) for wear	Daily
9	Inspect cutter for cracks or damage	Daily
10	Check lock screws & drill bushing securely mounted	Daily
11	Check tool function (Start/Stop/Manual/Auto Retract)	Daily
12	Test drill — verify cutter guide/bushing clearance (H7/g6)	Daily
13	Check air inlet connection securely tightened; check for external air leaks — replace O rings as necessary	Daily
14	Inspect Fluid Inducer End Seal/Tube; check Lubricator operation (if fitted)	Daily
15	Apply grease to Mitis (per Mitis Grease Schedule)	Per Use
16	Check motor speed — clean inlet screen/muffler; replace motor blades if necessary	3 Mo.
17	15QB/158QB — grease every 40 hrs (No. 2 Moly grease)	3 Mo.
18	Apply grease to Gear Head & Planetary Gear Box	3 Mo.
19	QRA (Adaptive) — check Sensor Block/Magnets/Adaptive functionality	3 Mo.
20	Inspect O Rings/Seals — replace as necessary; 230QR/QB check thrust overload; check spindle threads for wear	6 Mo.
21	Inspect all bearings & gears — replace if necessary	12 Mo.
22	Check all springs — replace if necessary	12 Mo.

For service assistance, contact Corvaer at corvaer.com

4Sales and Service Centers

For technical support, replacement parts, and authorized service on Quackenbush tools, contact your nearest Corvaer Sales and Service Center. Additional locations may be available at corvaer.com.