Midmark 354-001, 354-002, 354-003, 354-004, 354-007 Service manual

-001 thru -004

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-007 thru -010

354

Ceiling

-016 thru -019

-025, -026, -028, -029

-031, -032, -034, -035

-037, -038, -040, -041

Lighting System

Serial Number Prefixes: KN, KP, LY, LZ, MA, MB, KS, KT, MD, ME, MX & MZ

Service and

Parts Manual

354

MA458100

FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY

SF-1771 Part No. 004-0309-00 Rev. C (1/01/04)

CEILING

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TABLE OF CONTENTS

Section/Paragraph................................................Page Section/Paragraph ...............................................Page

IMPORTANT INSTRUCTIONS

General Safety Instructions...........................................ii

Safety Alert Symbols.....................................................ii

Warranty Instructions .................................................. ii

SECTION I GENERAL INFORMATION

1.1 Scope of Manual .......................................... 1-1

1.2 How to Use Manual......................................1-1

1.3 Description Of 354 Lighting System.............1-1

1.4 Specifications ...............................................1-3

1.5 Parts Replacement Ordering........................1-3

1.6 Special Tools................................................1-5

SECTION II TESTING AND TROUBLESHOOTING

2.1 Operational Test (See Figure 2-1)................2-1

2.2 Troubleshooting Procedures ........................2-3

SECTION III SCHEDULED MAINTENANCE

3.1 Scheduled Maintenance ............................. 3-1

SECTION IV MAINTENANCE/SERVICE INSTRUCTIONS

4.1 Introduction...................................................4-1

4.2 Typical Fuse Removal / Installation..............4-1

4.3 Typical Transformer Removal / Installation

Early Units.................................................4-2

4.4 Typical Transformer Removal / Installation

Later Units.................................................4-3

4.5 Transformer Input Tap Adjustment

Early Units.................................................4-5

4.6 Transformer Input Tap Adjustment

Later Units.................................................4-6

4.7 Typical Fuse Holder Removal /

Installation.................................................4-8

4.8 ON / STANDBY Switch Removal /

Installation.................................................4-9

4.9 Lighthead Removal / Installation................4-10

4.10 Fan Assembly Removal / Installation.........4-10

4.11 Bulb Removal / Installation........................ .4-12

4.12 Bulb Socket Removal / Installation.............4-13

4.13 Iris Diaphragm Removal /

Installation...............................................4-14

4.14 Lens Removal / Installation........ ...... ....... ... 4-16

4.15 Cross Tube Counterbalance

Adjustment................................................. 4-18

4.16 Ball Pivot Joint Tension Adjustment...........4-19

4.17 Ball Pivot and / or Ball Pivot Stop

Removal / Installation ............................. 4-20

4.18 Lamp Tube Brake Adjustment.................... 4-23

4.19 Lighthead Brake Adjustment...................... 4-23

4.20 Lighthead Pivot Bearing Stop

Removal / Installation................................. 4-24

4.21 Main Pivot Stop Removal / Installation ...... 4-25

4.22 Lamp Tube Pivot Stop

Removal / Installation ............................ 4-26

SECTION V SCHEMATICS AND DIAGRAMS

5.1 Electrical Schematics /

Wiring Diagrams ..................................... 5-1

SECTION VI PARTS LIST

6.1 Introduction ................................................ 6-1

6.2 Description Of Columns............................... 6-1

6.3 Torque Speci fi ca tio ns And Important

Assembly Notes........................................ 6-1

354 Ritter Single Light System..................... 6-2

354 Ritter Double Light System .................. 6-3

354 Midmark Single Light System .............. 6-4

354 Midmark Double Light System .............6-5

354 Ritter Combination Light System† ........ 6-6

354 Midmark Combination Light System† ... 6-7

Down Tube Assembly................................6-8.*

Single Ceiling Plate Assembly...................6-9.*

Double Ceiling Plate Assembly........ ....... .6-10.*

Combination Ceiling Plate Assembly.......6-11.*

Cross Tube Assembly..............................6-12.*

Lamp Tube Assembly ................................ 6-13

Lighthead Assembly.................................6-14.*

Bulb Carriage Assembly ............................ 6-15

Optic Assembly........................................6-16.*

COMMENTS............................................................. 7-1

FAX ORDER FORM.................................................. 7-2

(†) For parts information on the 355 portion of 354 (-016 thru -019 & -037, -038, -040, -041) combination units,

refer to the appropriate 355 Service and Parts Manual.

(*) Indicates that there has been a serial number break for the illustration and that there are additional

point page(s) following the original page.

Rev. 1/03

TABLE OF CONTENTS

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General Safety Instructions

Safety First: The primary concern of Midmark Corporation is that this lighting system is maintained with

the safety of the patient and staff in mind. To assure that services and repairs are completed safely and correctly, proceed as follows:

(1) Read this entire manual before performing any

services or repairs on this lighting system.

(2) Be sure you understand the instructions con-

tained in this manual before attempting to service or repair this lighting system.

Safety Alert Symbols

Throughout this manual are safety alert symbols that call attention to particular procedures. These items are

used as follows:

DANGER

A DANGER is used for an imminently-

hazardous operating procedure, practice, or condition which, if not correctly followed, will result in loss of life or serious personal injury.

NOTE

A NOTE is used to amplify an operating procedure, practice or condition.

Warranty Instructions

Refer to the Midmark “Limited Warranty” printed in the Installation and Operation Manual for warranty information. Failure to follow the guidelines listed below will void the warranty and/or render the 354 Lighting System unsafe for operation.

• In the event of a malfunction, do not attempt to operate the lighting system until necessary repairs have been made.

• Do not attempt to disassemble lighting system, replace malfunctioning or damaged components, or perform adjustments unless you are one of Midmark’s authorized service technicians.

• Do not substitute parts of another manufacturer when replacing inoperative or damaged components. Use only Midmark replacement parts.

WARNING

A WARNING is used for a potentially

hazardous operating procedure, practice, or condition which, if not correctly followed, could result in loss of life or serious personal injury.

CAUTION

A CAUTION is used for a potentially haz-

ardous operating procedure, practice, or condition which, if not correctly followed, could result in minor or moderate injury. It may also be used to alert against unsafe practices.

EQUIPMENT ALERT

An EQUIPMENT ALERT is used for an

imminently or potentially hazardous operating procedure, practice, or condition which, if not correctly followed, will or could result in serious, moderate, or minor damage to unit.

SECTION I

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GENERAL INFORMATION

SECTION I

GENERAL INFORMATION

1.1 Scope of Manual

This manual contains detailed troubleshooting, scheduled maintenance, maintenance, and service instructions for the 354 Lighting System. This manual is intended to be used by Midmark’s authorized service technicians.

1.2 How to Use Manual

A. Manual Use When Performing Scheduled Mainte-

nance.

(1) Perform inspections and services listed in

Scheduled Maintenance Chart (Refer to para 3.1).

(2) If a component is discovered to be faulty or out

of adjustment, replace or adjust component in accordance with maintenance / service instructions (Refer to para 4.1).

B. Manual Use When Light Is Malfunctioning And

Cause Is Unknown.

(1) Perform an operational test on Light (Refer to

para 2.1).

(2) Perform troubleshooting procedures listed in

Troubleshooting Guide (Refer to para 2.2).

1.3 Description Of 354 Lighting System

A. General Description (See Figure 1-1).

The 354 Lighting System is a compact spotlight designed specifically for performing general medical examinations and procedures. Listed are the models currently available:

354-001,-007,-028, -029 ........9 ft., Single Light System

354-002,-008,-034,-035 ....... 9 ft., Double Light System

354-003,-009,-025, -026 ........8 ft., Single Light System

354-004, -010,-031, -032 ..... 8 ft., Double Light System

354-016*,-018*

-040*,-041*...................9 ft.,354 / 355 Combo System

354-017*,-019*

-037*,-038*...................8 ft.,354 / 355 Combo System

* When servicing the 355 portion of this lighting system, refer to the appropriate 355 Service and Parts Manual.

The major serviceable components of the lighting system are the transformer, fuse / fuse holder, bulb socket, ON / STANDBY switch, fan assembly, iris diaphragms, lenses, main pivot stop, counterbalance assembly, ball pivot joint assembly which includes ball pivot stop, lamp tube pivot stop, lighthead pivot bearing stop, lamp tube brake assembly and lighthead brake assembly.

(3) If a component is discovered to be faulty or out

of adjustment, replace or adjust component in accordance with maintenance / service instructions (Refer to para 4.1).

C. Manual Use When Damaged Component Is Known.

(1) Replace or adjust component in accordance

with maintenance / service instructions (Refer to para 4.1).

B. Theory of Operation (See Figure 5-1 for wiring

diagram / electrical schematic)

Line voltage (approximately 110-120 VAC) is supplied thru the line fuse (F1 and/or F2) to the transformer. If too much current is drawn by the lighting system's circuitry, the line fuse(s) (F1 and/or F2) blow.

Tran sfor mer will provide 20.82 +/- 0.62 VAC output to power the light / fan circuit based on an ideal 120.0 VAC input. Because there are facilities which cannot supply the ideal level of input voltage, the transformer is designed with three different primary input taps which can be used, based on the voltage level available at a particular facility. If the facility's voltage is 117.0 VAC or lower, the 114.0 VAC (yellow) transformer input tap must be used. If the facility's voltage is between 117.1 to 123.0 VAC, the 120.0 VAC (orange) transformer input tap must be used. If the facility's voltage is 123.1 VAC

SECTION I

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GENERAL INFORMATION

TRANSFORMER

IRIS

DIAPHRAGMS

LENSES

FUSE / FUSE

HOLDER

MAIN

PIVOT STOP

BALL

COUNTERBALANCE

ASSEMBLY

PIVOT STOP

Figure 1-1. Major Components

or higher, the 126.0 VAC (red) transformer input tap must be used. Using the correct transformer input tap will result in a transformer output of 20.82 +/- 0.62 VAC.

When the ON / STANDBY switch is switched to ON, the output voltage from the transformer secondary tap is applied across the bulb assembly and the fan motor causing the bulb to illuminate and the fan to operate. Turning the ON / STANDBY switch to STANDBY opens the circuit, causing the bulb to stop illuminating and the fan to stop operating. However, power is still applied to the primary side of the transformer.

BALL PIVOT

JOINT ASSEMBLY

LAMP TUBE

PIVOT STOP

ON / STANDBY

SWITCH

LAMP TUBE

BRAKE

ASSEMBLY

BULB

SOCKET

LIGHTHEAD

PIVOT BEARING

STOP

FAN

SOCKET

LIGHTHEAD

BRAKE

ASSEMBLY

MA483900

SECTION I

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GENERAL INFORMATION

1.4 Specifications

Factual data for the 354 Lighting System is provided in Table 1-1. Also, see Figure 1-2.

Table 1-1. Specifications

Description Data

Weight of a Unit:

8 ft (2.44 m) single light...................59.0 lbs (26.8 kgs)

9 ft (2,74 m) single light...................60.0 lbs (27.2 kgs)

8 ft (2.44 m) dual light ......................105 lbs (47.6 kgs)

9 ft (2.74 m) dual light ......................107 lbs (48.5 kgs)

Torque load of a unit on its ceiling plate:

8 ft (2.44 m) single light.................... 69 ft-lbs (94 N•m)

9 ft (2.74 m) single light.................... 69 ft-lbs (94 N•m)

8 ft (2.44 m) dual light .................. 136 ft-lbs (184 N•m)

9 ft (2.74 m) dual light .................. 137 ft-lbs (184 N•m)

Shipping Carton:

Single System .................. 61.0 in. "L" x 30.5 in. "W" x

10.5 in. "H"

(154.9 cm x 77.5 cm x 26.7 cm)

Beam diameter@

36 in. (91.4 cm): ......................Variable from 3 to 10 in.

(7.6 to 25.4 cm)

Electrical Requirements:................110-120 VAC, 60 HZ

1.5 amp, single phase

Power Consumption

(at bulb): ................................ 20.0 VAC @ 7.0 amps =

141.4 Watts

The following data applies to all models with serial numbers beginning with KN, KP, LY, LZ, MA, MB, KS, KT, MD, & ME:

Fuse Rating:..........................................3 amp, 250 VAC

1/4 x 1 1/4, Type Slo-Blo

Color Temperature: ............................................. 3,200K

Illumination @ 36 in.(91.4 cm): ......5,000 fc (53,800 lux)

The following data applies to models with serial numbers MX1000 & MZ1000 thru present:

Fuse Rating:.......................................1.6 amp, 250 VAC

1/4 x 1 1/4, Type Slo-Blo

Color Temperature: ............................................. 4,200K

Illumination @ 36 in.(91.4 cm): ......4,000 fc (43,000 lux)

1.5 Parts Replacement Ordering

Diameter of Lighthead: ......................... 5.0 in. (12.7 cm)

Focal Length:......................................... 36 in. (91.4 cm)

Reach of Arm Assemblies:............... 49.0 in. (124.5 cm)

maximum (from centerline of down

tube to center of lighthead)

Rotation of Lighthead: ........................180° of rotation at

lamp tube connection

Rotation of Lamp Tube: ...................... 540° of rotation at

cross tube connection

Rotation of Cross Tube:......................580° of rotation at

down tube connection

Vertical Range of Cross Tube:................. -35° to +35° of

vertical movement

Rotation of Down Tube: ...................... 580° of rotation at

ceiling plate connection

Bulb: ................................ 21 VAC, 150 W Halogen Bulb

If a replacement part is required, order the part directly from the factory as follows:

(1) Refer to Figure 1-2 to determine the location of

the model number and serial number of the lighting system and record this data.

(2) Refer to the Parts List to determine the item

numbers of the parts, part numbers of the parts, descriptions of the parts, and quantities of parts needed and record this data (Refer to para 6.1).

NOTE

Ask the Purchasing Department of the company that owns the lighting system for this information. Otherwise, this information may be obtained from the dealer that sold the lighting system.

(3) Determine the installation date of the lighting

system and record this data.

SECTION I

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GENERAL INFORMATION

52 in.

(132.0 cm)

540°

35°

580°

Model / Serial

Number

13.3 in.

(33.8 cm)

49.0 in.

(124.5 cm)

Figure 1-2. Dimensions / Serial Number Location

(4) Call Midmark with the recorded information and

ask for the Medical Products Technical Services Department. See back cover of this manual for the phone number or use the Fax Order Form (See page 7-2 for Fax Order Form).

180°

27.8 in.

(70.6 cm)

Height of Lighthead Assembly

Adjustable from 50 in. (127.0 cm) to

74.0 in. (188.0 cm) above floor.

MA484602

SECTION I

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GENERAL INFORMATION

1.6 Special Tools

Table 1-2 lists all of the special tools needed to repair the lighting system, how to obtain the special tools, and the purpose of each special tool.

Table 1-2. Special Tool List

Description of Special Tool

Multimeter Commercially Available Any Type Used to perform continuity and voltage checks.

Torque Wrench Commercially Available Any Type Used to tighten nuts or screws to specified values.

Manufacturer’s

Name / Address / Phone

Manufacturer’s

Part Number

Purpose of Special Tool

SECTION I

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GENERAL INFORMATION

TESTING AND TROUBLESHOOTING

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SECTION II

TESTING AND TROUBLESHOOTING

SECTION II

2.1 Operational Test (See Figure 2-1)

In order to effectively diagnose a malfunction of the 354 Lighting System, it may be necessary to perform an

operational test as follows*:

WARNING

Refer to the Operator Manual for com-

plete instructions on operating the lighting system. Failure to do so could result in personal injury.

NOTE

The Operational Test, for the most part, only describes what should happen when the lighting system is operated. If the lighting system does something other than described, a problem has been discovered. Refer to the Troubleshooting Guide to determine the cause of the problem and its correction.

(1) Turn the ON / STANDBY switch (A, Figure 2-1)

to ON.

(2) Observe. The lighthead (2) should illuminate

and the fan in the back of the lighthead should be operating.

(3) Position the lighthead (2) 36 in. (91.4 cm) from

the table (or wall) and aim the light beam at the table (or wall).

(5) Rotate the lighthead (2), lamp tube (3), cross

tube (4) and down tube (5) through their range of motions as shown on the illustration (See Figure 2-1).

(6) Observe. The lighthead (2) should be able to

be positioned easily through its entire range of motion. Also, the light should not flicker intermittently when the lighthead is being positioned.

(7) Move the lighthead (2) to different positions,

release the lighthead, and observe it.

(8) Observe. When the lighthead (2) is released in

any position, no drifting should occur at any axis.

(9) Adjust the brightness control lever (6) through

its range of motion.

(10) Observe. The light beam should brighten /

darken as the brightness control lever is adjusted.

(11) Position the brightness control lever (6) to get

the maximum brightness and then adjust the beam size lever (7) through its range of motion.

(12) Observe. The light beam pattern should

change from approximately 3 in. (7.6 cm) to 10 in. (25.4 cm) as the beam size lever (7) is adjusted.

(4) Observe. There should be an evenly distrib-

uted circular pattern of bright light, approximately 3 in. to 10 in. (7.6 cm to 25.4 cm) in diameter, on the table (or wall) surface.

(13) Turn the ON / STANDBY switch (A) to

STANDBY.

SECTION II

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TESTING AND TROUBLESHOOTING

5

1

580°

540°

35°

4

35°

580°

A

36"

(91.4 cm)

APPROXIMATELY

3" TO 10"

(7.6 cm to 25.4 cm)

2

3

180°

7

MA458500

6

Figure 2-1. Operational Test

2.2 Troubleshooting Procedures

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Table 2-1 is a Troubleshooting Guide which is used to determine the cause of the malfunction.

Table 2-1. Troubleshooting Guide

Problem Symptom Probable Cause Check Correction

Lighthead will not illuminate, and fan does not function.

Fan functions properly, but lighthead will not illuminate.

Lighthead illuminates properly, but fan does not function.

Lighthead / fan will not function even though ON / STANDBY switch is turned to ON.

Lighthead / fan will not function or function intermittently when lighthead or arm assemblies are moved.

Fan functions properly, but lighthead will not illuminate even though ON / STANDBY switch is turned to ON.

Lighthead illuminates properly, but fan does not function even though ON / STANDBY switch is turned to ON.

Facility circuit breaker providing power to unit is tripped.

Line fuse (located in junction box) is blown.

Fuse holder is malfunctioning.

ON / STANDBY switch is malfunctioning.

Transformer is malfunctioning.

Wiring is torn, broken, or disconnected somewhere within the arm assembly.

Wiring is torn, broken, or disconnected somewhere within the arm assemblies.

Bulb is burned out or has not been installed.

Wiring is torn, broken, or disconnected somewhere within the lighthead.

Bulb socket is corroded resulting in bad connection.

Wiring is torn, broken, or disconnected somewhere within lighthead.

Fan assembly is malfunctioning.

SECTION II

TESTING AND TROUBLESHOOTING

Check to see if facility circuit breaker for unit is tripped.

Perform continuity check on line fuse.

Perform continuity check on fuse holder.

Perform continuity check on ON / STANDBY switch.

Check for 20.82 +/- 0.62 VAC across output leads of transformer when the ON / STANDBY switch is ON.

Perform a continuity check on blue and brown wiring running from transformer to lighthead.

Replace suspect bulb with known working bulb.

Check for torn, broken, or disconnected wiring within lighthead.

Clean bulb socket or replace with known working bulb socket.

Check for torn, broken, or disconnected wiring within lighthead; also check for heat damage to lenses.

Replace suspect fan assembly with known working fan assembly; also check for heat damaged lenses

If facility circuit breaker is tripped, determine what caused the circuit breaker to trip, correct the problem, and then reset / replace the circuit breaker.

Replace line fuse. Refer to para 4.2.

Replace fuse holder. Refer to para 4.7.

Replace ON / STANDBY switch. Refer to para 4.8.

If 20.82 +/- 0.62 VAC is not present when ON / STANDBY switch is ON, replace transformer. Refer to para 4.3 or

4.4.

Replace or repair any torn, broken, or disconnected wiring.

Replace bulb. Refer to para 4-11.

Replace any torn, broken,or disconnected wiring within lighthead.

Replace bulb socket. Refer to para 4-12.

Replace any torn, broken, or disconnected wiring. Replace any damaged lenses. Refer to para 4.12.

Replace fan assembly. Refer to para 4-10. Replace any damaged lenses. Refer to para 4.14.

Problem Symptom Probable Cause Check Correction

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Adjustment lever(s) will not function.

Arm assembly(ies) or lighthead does not rotate freely or drifts when released in desired position.

Arm assemblies can be rotated farther than specified.

Lighthead will not operate properly.

Table 2-1. Troubleshooting Guide - Continued

Adjustment lever does not control brightness / beam size.

Down tube does not rotate or drifts when released in desired position.

Cross tube rotates (at ball pivot joint) too stiffly or drifts when released in desired position.

Lamp tube does not rotate freely (at cross tube) or drifts when released in desired position.

Lighthead does not rotate freely (at lamp tube) or drifts when released in desired position.

Cross tube can be rotated more than 580° in one direction.

Lamp tube can be rotated more than 540° in one direction.

Down tube can be rotated more than 580° in one direction.

Lighthead can be rotated more than 180° in one direction.

Lighthead assembly illuminates, but not at the correct intensity.

TESTING AND TROUBLESHOOTING

Iris diaphragm is malfunctioning.

Iris diaphragm is rotating in optic housing.

Improper installation of ceiling plate (deflects too much or is not level).

Cross tube counterbalance needs to be adjusted.

Ball pivot joint tension needs to be adjusted.

Lamp tube brake tension needs to be adjusted.

Lighthead brake tension needs to be adjusted.

Ball pivot stop is broken. Check for broken ball

Lamp tube pivot stop is broken.

Main pivot stop is broken. Check for broken pivot

Lighthead pivot bearing stop is broken.

Halogen bulb not illuminating at proper intensity.

Wrong input tap is being used on transformer or facility voltage level has changed since lighting system was installed.

Transformer is malfunctioning.

Replace suspect iris diaphragm with known working iris diaphragm.

Check for loose screws holding optic housing to front cover.

Check for excessive flexing of ceiling support structure and / or check if ceiling plate is level.

Remove all tension from the ball pivot joint and observe to see if the cross tube counterbalances correctly.

Check ball pivot joint for looseness or stiffness.

Check for looseness or stiffness in joint.

pivot stop.

Check for broken lamp tube pivot stop.

stop.

Check for broken lighthead pivot bearing.

Replace suspect halogen bulb with known working halogen bulb.

Check to see if correct transformer input tap is being used.

Replace suspect transformer with known working transformer.

SECTION II

Replace iris diaphragm. Refer to para 4-13.

Re-align iris diaphragm(s). Refer to para 4.13.

Support ceiling structure as necessary to prevent flexing. If ceiling plate is not level, readjust until level.

Perform the cross tube counterbalance adjustment. Refer to para 4.15. Then, perform the ball pivot joint tension adjustment. Refer to para

4.16.

Perform the cross tube counterbalance adjustment. Refer to para 4.15. Then, perform the ball pivot joint tension adjustment. Refer to para

4.16.

Adjust the brake tension of the lamp tube. Refer to para 4.18.

Adjust the brake tension of the lighthead. Refer to para 4.19.

Replace ball pivot stop. Refer to para 4.17.

Replace lamp tube pivot stop. Refer to para 4.22.

Replace main pivot stop. Refer to para 4.21.

Replace lighthead pivot bearing stop. Refer to para 4.20.

Replace halogen bulb. Refer to para 4.11.

Select the proper transformer input tap based on the facility voltage available. Refer to para 4.5 or 4.6.

Replace transformer. Refer to para 4.3 or 4.4.

Problem Symptom Probable Cause Check Correction

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Lighthead will not operate properly.

-

Continued

Table 2-1. Troubleshooting Guide - Continued

Lighthead assembly illuminates, but not at the correct intensity. - Continued

TESTING AND TROUBLESHOOTING

Bulb socket corroded resulting in bad connection or high resistance.

Lenses are clouded, dirty, or damaged.

Components of lighthead have been damaged / abused to the point that the lighthead is no longer in tolerance.

Clean bulb socket or replace suspect bulb socket with known working bulb socket.

Clean lenses or replace with new lens(es).

— Return lighthead to Midmark

SECTION II

Replace bulb socket. Refer to para 4.12.

Replace lens(es). Refer to para 4.14.

for repair. Call 1-800-MIDMARK and ask for Medical Products Technical Service.

SECTION II

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TESTING AND TROUBLESHOOTING

SECTION III

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SCHEDULED MAINTENANCE

SECTION III

SCHEDULED MAINTENANCE

3.1 Scheduled Maintenance

Table 3-1 is a Scheduled Maintenance Chart which lists the inspections and services that should be performed periodically on the 354 lighting system. These inspections and services should be performed as often as indicated in the chart.

Table 3-1. Scheduled Maintenance

Interval Inspection or Service What to Do

Semi-annually Obvious damage Visually check condition of lighting system for obvious damage such as: cracks in components,

Fasteners / hardware Check lighting system for missing or loose fasteners / hardware. Replace any missing hardware

Warning and instructional decals

Ceiling support Check the rigididity of the ceiling support to which the ceiling plate is secured to for stability and

Lighthead assembly CAUTION: Use only a Quarternary / Ammonia - base Germicide type cleaner to clean / disinfect

Fan CAUTION: Operating the lighthead without the fan in operation may cause heat damage to lenses.

ON / STANDBY switch Check the ON / STANDBY switch for proper function. Replace ON / STANDBY switch if necessary.

Integrity of wiring and / or connections

Rotation of all axis Check each axis to ensure ease of movement and positioning with no drifting after being released.

Ball pivot joint Check that cross tube can rotate +35° to -35°. Check for drifting of cross tube after it is released in

Bulb Check for a missing or burned out bulb. Replace bulb if necessary. Refer to para 4.11.

Bulb socket Check bulb socket for corrosion or damage which would prevent posts of bulb from making good

Adjustment levers Check levers for proper operation. Verify that levers adjust the brightness and beam size of the

Operational Test Perform an Operational Test to determine if the exam light is operating within its specifications.

missing components, dents in components, or any other visible damage which would cause the lighting system to be unsafe to operate or would compromise its performance. Repair lighting system as necessary.

and tighten any loose hardware as necessary.

Check for missing or illegible decals. Replace decals as necessary.

sturdiness. Strengthen supports if necessary and tighten any loose bolts. Check to see if the ceiling plate is level. If not, level the ceiling plate.

the light. Other cleaners could pit or cloud the plastic. For the housing portion of the lighthead, use a soap and water solution to remove dirt and stains; for tougher stains, a standard household cleaner may be used.

Check fan for proper operation. Verify that fan is operating when light is turned on. Replace fan assembly if necessary. Refer to para 4.10.

Refer to para 4.8.

Move each axis thru its full range of motion while observing the light beam for intermittent flickering or light beam going out completely. Repair wiring or wiring connections as necessary.

Adjust tension of brakes if drifting is observed. Make sure each axis cannot rotate more than is specified in Figure 2-1. If so, replace pivot stops / pivot bearing stops as necessary. Refer to para 4-17.

a position. If necessary, adjust the ball pivot joint tension. Refer to para 4.16.

electrical contact with bulb socket. Clean or replace bulb socket. Refer to para 4.12.

spotlight. Replace iris diaphragm(s) if necessary. Refer to para 4-13.

Refer to para 2.1. Replace or adjust any malfunctioning components.

SECTION III

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SCHEDULED MAINTENANCE

MAINTENANCE / SERVICE

Return To Table Of Contents

SECTION IV

MAINTENANCE / SERVICE INSTRUCTIONS

SECTION IV

4.1 Introduction

WARNING

Refer to the Operator Manual for com-

plete instructions on operating the lighting system. Failure to do so could result in personal injury.

NOTE

Perform an operational test on the lighting system after the repair is completed to confirm the repair was properly made and that all malfunctions were repaired.

The following paragraphs contain removal, installation, repair, and adjustment procedures for the lighting system.

4.2 Typical Fuse Removal / Installation

A. Removal

B. Installation

(1) Insert one end of new fuse (6) into the fuse

cap (4).

(2) Simultaneously push fuse cap (4) into fuse

holder (5) and rotate it 1/4 turn in the clockwise direction to secure it.

(3) Install ceiling cover (2) on ceiling plate (3) and

secure with four screws (1).

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Turn the ON / STANDBY switch to STANDBY.

(2) Remove four screws (1, Figure 4-1) and lower

ceiling cover (2) from ceiling plate (3)

(3) Simultaneously push in on fuse cap (4) with

slotted screwdriver and rotate 1/4 turn in the counterclockwise direction; then pull fuse cap from fuse holder (5).

(4) Pull fuse (6) out of fuse cap (4).

(5) Inspect fuse for any indication it has been

blown. Perform continuity check on fuse. Discard fuse.

Figure 4-1. Fuse Replacement

SECTION IV

6

9

7

5

7

8

4

Return To Table Of Contents

MAINTENANCE / SERVICE

4.3 Typical Transformer Removal / Installation (Applies to all units with

Serial Number prefixes KN, KP, KS, KT, LY, LZ, MA, MB, MD, and ME)

2

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Turn off facility power breaker so there is no

power in facility wiring.

NOTE

The following procedure is written for units with easy access thru ceiling to junction box. If your unit does not have easy access to junction box, removal of down tube and junction box may be necessary first.

(2) Loosen four screws (1, Figure 4-2); then

remove junction box cover (2) from junction box (3) by lifting up and then outward.

10

3

1

(3) Tag and disconnect wire (4) from terminal of

fuse holder (5).

NOTE

Only one of the transformer input wires are used (which one is used depends on facility input voltage). The following step applies to the input wire being used.

(4) Remove wire nut (6); then tag and disconnect

yellow, orange, or red transformer input wire (7) from facility white “neutral” wire (8).

(5) Remove wire nuts (9) from remaining two input

wires (7).

(6) Pull three wires (7) and wire (4) out thru snap

bushing (10).

(7) Remove wire nuts (1, Figure 4-3); then tag and

disconnect two wires (2) from two transformer output wires (3).

(8) Remove two nuts (4), lockwashers (5), screws

Figure 4-2. Transformer Access

(6), and transformer (7) from junction box (8).

MA339000

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

B. Installation

(1) Connect two transformer output wires (3, Figure

4-3) to two wires (2) (wires exiting from down tube) with two wire nuts (1). Secure wire nuts in place with electrical tape.

(2) Install transformer (7) on junction box (8) and

secure with two screws (6), lockwashers (5), and nuts (4).

(3) Feed wire (4, Figure 4-2) and three wires (7)

thru snap bushing (10).

NOTE

Make sure the same transformer input wire that was used on the old transformer is used on the new transformer. If necessary, perform transformer input tap selection (Refer to para 4.4).

(4) Connect transformer input wire (being used) (7)

to facility white “neutral” wire (8) with large wire nut (6). Secure wire nut with electrical tape.

6

(5) Install small wire nuts (9) on the two remaining

(unused) transformer input wires (7). Secure wire nuts with electrical tape.

(6) Connect wire (4) to terminal of fuse holder (5).

(7) Install junction box cover (2) on junction box (3)

and secure by tightening four screws (1).

(8) Connect electrical power to unit.

4.4 Typical Transformer Removal / Installation (Applies to units with

Serial Numbers MX1000 & MZ1000 thru present)

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

8

5

4

3

2

7

1

Figure 4-3. Transformer Removal / Installation

MA339100

(1) Turn off facility power breaker so there is no

power in facility wiring.

NOTE

The following procedure is written for units with easy access thru ceiling to junction box. If your unit does not have easy access to junction box, removal of down tube and junction box may be necessary first.

(2) Loosen four screws (1, Figure 4-2); then

remove junction box cover (2) from junction box (3) by pulling outward.

(3) Tag and disconnect wire (4) from terminal of

fuse holder (5).

NOTE

2

Only one of the transformer input wires are used (which one is used depends on facility input voltage). The following step applies to the input wire being used.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

Figure 4-2. Transformer Access

(4) Tag and disconnect yellow, orange, or red trans-

former input wire (6) from facility terminal block (7).

(5) Pull three wires (6) and wire (4) out thru snap

bushing (8).

(6) Disconnect blue and brown transformer output

wires (1, Figure 4-3).

(7) Remove two screws (2), and transformer (3)

from junction box (4).

B. Installation

(1) Connect blue and brown transformer output

wires (1, Figure 4-3) to two wires (5) (wires exiting from down tube).

(2) Install transformer (3) on junction box (4) and

secure with two screws (2).

(3) Feed one wire (4, Figure 4-2) and three wires

(6) thru snap bushing (8).

(4) Connect yellow, orange, and red transformer

input wires (6) to appropriately marked spot on the terminal block (7).

Figure 4-3. Transformer Removal / Installation

(5) Connect wire (4) to terminal of fuse holder (5).

4

8

7

5

9

6

Return To Table Of Contents

(6) Install junction box cover (2) on junction box (3)

and secure by tightening four screws (1).

(7) Connect electrical power to unit.

4.5 Transformer Input Tap Adjustment

(Applies to all units with Serial Number prefixes KN, KP, KS, KT, LY, LZ, MA, MB, MD, and ME)

A. Removal

WARNING

Make sure facility supplied wiring is

turned off for the following steps. Failure to do so could result in electrical shock causing serious personal injury or death.

SECTION IV

MAINTENANCE / SERVICE

2

3

1

(1) Turn off facility power breaker so there is no

power in facility wiring to unit.

NOTE

The following procedure is written for units with easy access thru ceiling to junction box. If your unit does not have easy access to junction box, removal of down tube and then junction box may be necessary first.

(2) Loosen four screws (1, Figure 4-4); then

remove junction box cover (2) from junction box (3) by lifting up and then outward.

(3) Remove wire nut (4); then tag and disconnect

black “hot” wire (5) from fuse wire (6).

(4) Remove wire nut (7); then tag and disconnect

white “neutral” wire (8) from yellow, orange, or red transformer input wire (9).

WARNING

Make sure facility supplied wiring is not

shorted to junction box and do not touch wires during steps 5 and 6. Failure to do so could result in electrical shock causing serious personal injury or death.

MA339200

Figure 4-4. Transformer Input Tap Selection

(6) Using a multimeter, measure the input voltage

between black “hot” wire (5) and white “neutral” wire (8) of facility wiring. Record this voltage.

(5) Turn on facility power breaker so there is power

in facility wiring.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(7) Turn off facility power breaker so there is no

power in facility wiring to unit.

WARNING

Make sure facility supplied wiring is

turned off for the following steps. Failure to do so could result in electrical shock causing serious personal injury or death.

NOTE

There are different levels of voltage at different facilities, however, the light is designed to work best at 120 VAC. The transformer has three input taps which can be used to adjust the transformer output based on what the facility input voltage actually is; whether it is too high, too low, or within tolerance. The following step helps select the correct input tap.

(8) If voltage measured in step 6 was 117.0 VAC or

lower, connect the white “neutral” wire (8) of facility wiring to the yellow transformer input lead (9). Secure wires with large wire nut (7); then secure wire nut with electrical tape. If voltage measured in step 6 was between 117.1 and 123.0 VAC, connect the white “neutral” wire (8) of facility wiring to the orange transformer input lead (9). Secure with large wire nut (7); then secure wire nut with electrical tape. If voltage measured in step 6 was 123.1 VAC or higher, connect the white “neutral” wire (8) of facility wiring to the red transformer input lead (9). Secure wires with large wire nut (7); then secure wire nut with electrical tape.

4.6 Transformer Input Tap Selection

(Applies to units with Serial Numbers MX1000 & MZ1000 thru present)

A. Selection

WARNING

Make sure facility supplied wiring is

turned off for the following steps. Failure to do so could result in electrical shock causing serious personal injury or death.

(1) Turn off facility power breaker so there is no

power in facility wiring to unit.

NOTE

The following procedure is written for units with easy access thru ceiling to junction box. If your unit does not have easy access to junction box, removal of down tube and then junction box may be necessary first.

(2) Loosen four screws (1, Figure 4-4); then

remove junction box cover (2) from junction box (3) by pulling outward.

WARNING

Make sure facility supplied wiring is not

shorted to junction box and do not touch wires during steps 3 and 4. Failure to do so could result in electrical shock causing serious personal injury or death.

(9) Connect the black “hot” wire (5) of facility wiring

to fuse wire (6). Secure wires with large wire nut (4). Secure wire nut with electrical tape.

(10) Install junction box cover (2) on junction box (3)

and secure by tightening four screws (1).

(11) Turn on facility power breaker so there is power

to unit.

(3) Turn on facility power breaker so there is power

in facility wiring.

(4) Using a multimeter, measure the input voltage

between black “hot” wire (4) and white “neutral” wire (5) of facility wiring. Record this voltage.

(5) Turn off facility power breaker so there is no

power in facility wiring to unit.

WARNING

Make sure facility supplied wiring is

turned off for the following steps. Failure to do so could result in electrical shock causing serious personal injury or death.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

Figure 4-4. Transformer Input Tap Selection

NOTE

There are different levels of voltage at different facilities, however, the light is designed to work best at 120 VAC. The transformer has three input taps which can be used to adjust the transformer output based on what the facility input voltage actually is; whether it is too high, too low, or within tolerance. The following step helps select the correct input tap.

(6) If voltage measured in step 4 was 117.0 VAC or

lower, connect the white “neutral” wire (5) of facility wiring to terminal marked N/114V for Single Units or N1/114V or N2/114V for Double Units. If voltage measured in step 4 was between

117.1 and 123.0 VAC, connect the white “neu- tral” wire (5) of facility wiring to the terminal marked N/120V for Single Units N2/120V for Double Units If voltage measured in step 4 was 123.1 VAC or higher, connect the white “neutral” wire (5) of facility wiring to the terminal marked N/126V for Single Units or N1/126V or N2/126V for Double Units.

or N1/120V or

.

(8) On Dual Light Units

on the terminal block may need to be repositioned depending on the voltage measurement taken in step 4. If voltage measured in step 4 was 117.0 VAC or lower, connect the white jumper (6) to terminals N1/114V and N2/114V. If voltage measured in step 4 was between

117.1 and 123.0 VAC, connect the white jumper (6) to terminals N1/120V and N2/120V. If voltage measured in step 4 was 123.1 VAC or higher, connect the white jumper (6) to terminals N1/126V and N2/126V.

(9) Install junction box cover (2) on junction box (3)

and secure by tightening four screws (1).

(10) Turn on facility power breaker so there is power

to unit.

the white jumper wire (6)

(7) Connect the black “hot” wire (4) of facility wiring

to the terminal marked “L”.

SECTION IV

Figure 4-5. Ceiling Cover / Fuse

Removal / Installation

Return To Table Of Contents

MAINTENANCE / SERVICE

4.7 Typical Fuse Holder Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Turn off facility power breaker so there is no

power in facility wiring to unit.

(2) Remove four screws (1, Figure 4-5) and lower

ceiling cover (2) from ceiling plate (3).

(3) Simultaneously push in on fuse cap (4) with a

slotted screwdriver and rotate it 1/4 turn in the counterclockwise direction; then pull fuse cap from fuse holder (5).

(4) Pull fuse (6) out of fuse cap (4).

NOTE

The following procedure is written for units with easy access thru ceiling to junction box. If your unit does not have easy access to junction box, removal of down tube and junction box may be necessary first.

(5) Loosen four screws (1, Figure 4-6); then

remove junction box cover (2) from junction box (3) by pulling outward.

NOTE

For units with older style junction box (not shown), it will be necessary to remove two screws and partially separate junction box divider to access fuse holder.

(6) Disconnect two wires (4) from terminal of fuse

holder (5).

(7) Remove nut (6) and push fuse holder (5) down

thru ceiling plate (7).

B. Installation

(1) Push fuse holder (5) up thru ceiling plate (7)

and secure with nut (6).

(2) Connect two wires (4) to terminals of fuse

holder (5).

(3) Install junction box cover (2) on junction box (3)

and secure by tightening four screws (1).

(4) Insert one end of fuse (6, Figure 4-5) into fuse

cap (4).

(5) Simultaneously push fuse cap (4) into fuse

holder (5) and rotate it 1/4 turn in clockwise direction to secure it.

(6) Install ceiling cover (2) on ceiling plate (3) and

secure with four screws (1).

(7) Turn on facility power breaker so there is power

in facility wiring to unit.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

Figure 4-6. Fuse Holder Removal / Installation

4.8 ON / STANDBY Switch Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

(2) Remove two screws (1, Figure 4-7) and partially

separate switch bezel (2) from cross tube weldment (3).

(3) Disconnect two wires (4) from terminals of ON /

STANDBY switch (5).

3

2

4

5

LOCKING

TABS

Figure 4-7. ON / STANDBY Switch Removal /

Installation

1

MA339300

(4) While simultaneously pressing on four locking

tabs, push ON / STANDBY switch (5) out of switch bezel (2).

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

B. Installation

(1) Press ON / STANDBY switch (5) into switch

bezel (2) until it pops into place.

(2) Position ON / STANDBY switch (5) so the ON

label "I" is located toward the ball pivot.

(3) Connect two wires (4) to terminals of ON /

STANDBY switch (5).

(4) Install switch bezel (2) on cross tube weldment

(3) and secure with two screws (1).

(5) Connect electrical power to unit.

4.9 Lighthead Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

(2) Remove two screws (1, Figure 4-8) and sepa-

rate lighthead (2) from lamp tube (3).

(3) Disconnect two wires (4) from bulb socket

wires (5). Remove lighthead (2).

B. Installation

(1) Position lighthead (2) near lamp tube (3); then

connect two bulb socket wires (5) to wires (4).

WARNING

Make sure screws (1) are installed cor-

rectly. Failure to install screws correctly could allow lighthead to fall resulting in patient or staff injury.

(2) Install lighthead (2) on lamp tube (3) and secure

with two screws (1)..

2

1

3

5

4

MA481000

Figure 4-8. Lighthead Removal / Installation

4.10 Fan Assembly Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

(2) Remove screw (1, Figure 4-9) and slide bulb

carriage (2) out of housing assembly (3).

(3) Remove two screws (4) and top cap (5) from

bulb carriage (2).

(4) Remove four screws (6), nuts (7) and

partially separate fan assembly (8) from bulb carriage (2).

(5) Cut wire tie (9) and remove nut (10).

(6) Remove two wire nuts (11) and fan assembly

(8) from bulb carriage (2).

11

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SECTION IV

MAINTENANCE / SERVICE

3

10

17

12

14

16

15

13

8

7

5

4

6

9

2

1

MA484500

Figure 4-9. Fan Assembly Removal / Installation

SECTION IV

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MAINTENANCE / SERVICE

B. Installation

(1) Connect fan wire (12) to bulb socket wire (13)

and power wire (14); then connect fan wire (15) to bulb socket wire (16) and power wire (17); secure connections with two wire nuts (11). Secure wire nuts with electrical tape.

(2) Gather wires with wire tie (9); then secure wire

tie to bulb carriage (2) with nut (10).

(3) Install fan assembly (8) and secure to bulb

carriage (2) with four screws (6) and nuts (7).

(4) Secure top cap (5) to bulb carriage (3) with two

screws (4).

(5) Slide bulb carriage (2) into housing (3) and

secure with screw (1).

4.11 Bulb Removal / Installation

2

1

5

6

4

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

NOTE

Screw (1) is a captive screw. Only loosen captive screw; do not try to remove it.

The phillips head screw (1) is different from the other two screws on the top cap. Loosen this screw only to slide out the bulb carriage assembly (2); the other two screws secure the top cap to the fan mounting plate.

3

MA480300

Figure 4-10. Bulb Removal / Installation

(2) Loosen screw (1, Figure 4-10) and slide bulb

carriage (2) out of outer housing (3).

CAUTION

Bulb may be HOT! Allow bulb to cool for

4-5 minutes before attempting to remove. Otherwise, burns to the hands and fingers could result.

NOTE

Halogen bulbs are sensitive to body oils. Be sure not to touch the inside face of the reflector or glass capsule of the bulb during relamping or cleaning. Body oils create a hot spot on the bulb and may cause the bulb to burn out prematurely. If these portions of the bulb / reflector are handled, wipe with a clean, soft, lint free cloth. Wipe with alcohol and pat dry.

(3) Remove bulb (4) by pulling bulb ejector lever

(5) to the rear and then gently pulling up on bulb.

SECTION IV

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MAINTENANCE / SERVICE

B. Installation

(1) Push bulb ejector lever (5) forward.

WARNING

The maximum allowable bulb wattage

which can be used in this light is 150 Watts. There is a risk of fire if the 150 Watt limit is exceeded. Use Midmark Part Number: 015-1212-00.

NOTE

Halogen bulbs are sensitive to body oils. Be sure not to touch the inside face of the reflector or glass capsule of the bulb during relamping or cleaning. Body oils create a hot spot on the bulb and may cause the bulb to burn out prematurely. If these portions of the bulb / reflector are handled, wipe with a clean, soft, lint free cloth. Wipe with alcohol and pat dry.

(2) Insert bulb (4) into bulb socket (6) and push

down until the base of the bulb is firmly seated against the bulb socket.

(3) Slide bulb carriage assembly (2) into outer

housing (3) and secure by tightening screw (1).

4.12 Bulb Socket Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

(2) Remove bulb. (Refer to para 4.9).

(3) Partially remove fan assembly. (Refer to

Removal, steps 3 & 4 of para 4.8).

(4) Cut wire tie (1, Figure 4-11) and remove nut (2).

(5) Remove two screws (3) and nuts (4).

(6) Remove two wire caps (5) and bulb socket (6)

from bulb carriage (7).

5

12

2

4

11

8

9

13

10

1

Figure 4-11. Bulb Socket Removal / Installation

6

7

3

MA484300

SECTION IV

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MAINTENANCE / SERVICE

B. Installation

(1) Secure bulb socket (6) to bulb carriage (7) with

two screws (3) and nuts (4).

(2) Connect bulb socket wire (8) to fan wire (9) and

power wire (10); then connect bulb socket wire (11) to fan wire (12) and power wire (13); secure connections with two wire caps (5). Secure wire caps with electrical tape.

(3) Secure all wires with wire tie (1); then secure

wire tie to bulb carriage (7) with nut (2).

(4) Install fan assembly. (Refer to Installation,

steps 3 & 4 of para 4.8).

(5) Install bulb. (Refer to para 4.9).

4.13 Iris Diaphragm Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

2

5

1

3

4

(1) Disconnect electrical power to unit.

(2) Remove two adjustment levers (1, Figure 4-12)

by turning counterclockwise.

(3) Remove two screws (2) and optic assembly (3)

from housing (4).

EQUIPMENT ALERT

After removing, place optic assembly (3,

Figure 4-12) on a flat surface, front cover (5) down to avoid damage to lenses or cover glass.

(4) Remove three screws (1, Figure 4-13), three

washers (2), screen (3) and retaining disk (4).

(5) Remove cover glass (5) and O-ring (6).

Figure 4-12. Optic Assembly

Removal / Installation

MA484000

SECTION IV

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MAINTENANCE / SERVICE

3

14

4

1

2

5

12

6

13

14

13

D

12

D

13

C

15

10

11

8

9

7

16

A

B

C

MA484200

Figure 4-13. Iris Diaphragm Removal / Installation

(6) Remove hex nut (7), iris lever shank (8), spring

(9), washer (10) and washer (11).

NOTE

To ease removal of spacers and iris diaphragms, cover the top of the optic housing (15) with a soft clean cloth and gently turn housing upside down.

(7) Remove cover spacer (12), iris diaphragm (13),

iris spacer (14) and iris diaphragm (13) from optic housing (15).

B. Installation

(1) Place optic housing (15) onto front cover posi-

tioning optic housing roll pin (A) in front cover notch (B).

NOTE

When installing, be sure the threaded holes in the iris diaphragms (13) align with the slots in the optic housing (15).

(2) Install first iris diaphragm (13) into optic housing

(15) with the flat side downward. Rotate so that the edge of the iris diaphragm slot is centered in the aligning hole (C) of the optic housing (15).

(3) Install iris spacer (14) in optic housing (15).

(4) Install second iris diaphragm (13) into optic

housing (15) with the flat side upward. Rotate so that the edge of the iris diaphragm slot is centered in the aligning hole (D) of the optic housing (15). Make certain that the first iris diaphragm did not move out of position.

(5) Install cover spacer (12), O-ring (6) and cover

glass (5).

EQUIPMENT ALERT

Tighten screws (1) until the tabs of the retaining disk (4) deflect slightly. Over-

tightening could cause cover glass to break.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

NOTE

Before tightening screws (1), verify that the edges of the iris diaphragm slots are still centered in the aligning holes (C & D) of the optic housing (15).

(6) Install retaining disk (4), screen (3) and secure

with washers (2) and screws (1).

EQUIPMENT ALERT

When installing iris lever shanks (8), hand tighten only. Over-tightening could strip

threads.

(7) Slide spring (9), washer (10) and washer (11)

on iris lever shank (8); then insert thru slot in optic housing (15) and turn clockwise into threaded hole of iris diaphragm (13).

(8) Thread hex nut (7) onto iris lever shank (8)

hand tightening only.

(9) Slide optic assembly (3, Figure, 4-12) into

housing (4) and secure with two screws (2).

(2) Remove two adjustment levers (1, Figure 4-14)

by turning counterclockwise.

EQUIPMENT ALERT

After removing, place optic assembly (3) on a flat surface, front cover down to avoid

damage to lenses or cover glass.

2

1

5

3

EQUIPMENT ALERT

When installing adjustment levers (1), hand tighten only. Over-tightening could

strip threads.

(10) Install two adjustment levers (1) thru slots

in housing (4) and secure to hex nut (7, Figure 4-13) by turning clockwise.

4.14 Lens Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

4

MA484000

Figure 4-14. Optic Assembly

Removal / Installation

SECTION IV

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MAINTENANCE / SERVICE

1

2

3

4

5

6

7

9

B

6

8

6

7

C

A

6

MA484101

Figure 4-15. Lens Removal / Installation

(3) Remove two screws (2) and optic assembly (3)

from housing (4).

(4) Remove three screws (1, Figure 4-15),

washers (2), screen (3) and retaining disk (4).

(5) Remove optic housing (5).

NOTE

To ease removal of two lenses (6) and spacer (7), cover the back of the front cover (8) with a soft clean cloth and gently turn front cover upside down.

NOTE

When removing the optic housing (2), be careful so as not to displace the two iris diaphragms located inside of the optic housing.

(6) Remove lens (6), lens spacer (7) and lens (6)

from front cover (8).

SECTION IV

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MAINTENANCE / SERVICE

B. Installation

NOTE

Verify that the O-ring (A, Figure 4-15) in the lip of the front cover (8) is in place and intact. If it is not, replace O-ring.

(1) Install lens (6), lens spacer (7) and lens (6) in

front cover (8).

(2) Place optic housing (5) onto front cover (8)

positioning optic housing roll pin (B) in front cover notch (C).

EQUIPMENT ALERT

Tighten screws (1) until the tabs of the retaining disk (4) deflect slightly. Over-

tightening could cause cover glass to break.

NOTE

Be sure iris diaphragms are in position before tightening screws (1). (Refer to Installation, steps 2 thru 4 of para 4.11).

(3) Install retaining disk (4), screen (3) and secure

with three washers (2) and screws (1).

4.15 Cross Tube Counterbalance Adjustment

A. Adjustment

(1) Remove screw (1, Figure 4-16) and slide ball

pivot sleeve (2) up out of way.

(2) Rotate cross tube (3) until adjustment hole (4)

appears in the adjustment window opening.

(3) Insert screwdriver into adjustment hole (4) and

rotate ball pivot cam (5) to assembly / disassembly position.

(4) Remove screw (1, Figure 4-17) and housing

cap (2) from ballast housing (3).

(5) Adjust screw (4) until cross tube balances in a

horizontal position.

(6) Install housing cap (2) on balast housing (3)

and secure with screw (1).

NOTE

Factory recommendation: Start wth the light setting and then proceed to the medium or stiff setting only if necessary to prevent drifting.

(4) Slide optic assembly (3, Figure 4-14) into hous-

ing (4) and secure with two screws (2).

EQUIPMENT ALERT

When installing adjustment levers (1), hand tighten only. Over-tightening could

strip threads.

(5) Install two adjustment levers (1) thru

slots in housing (4) and secure to hex nuts (9, Figure 4-15) by turning clockwise.

(7) Insert screwdriver into adjustment hole (4, Fig-

ure 4-16) and rotate ball pivot cam (5) to the desired setting.

NOTE

One way to determine if cross tube is balanced properly is to raise the cross tube above horizontal, release it and observe where it stops. Then, lower the cross tube below horizontal plane, release it and observe where it stops. The cross tube should return to the horizontal position and remain there; if it does, the cross tube counterbalance is adjusted properly. Turning screw (4) in clockwise direction will raise lighthead end of cross tube. Turning screw (4) in counterclockwise direction will lower the lighthead end of cross tube.

(8) Slide ball pivot sleeve (2) down into position

and secure with screw (1).

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

ASSEMBLY / DISASSEMBLY

POSITION

MEDIUM TENSION

POSITION

LIGHT TENSION

POSITION

STIFF TENSION

POSITION

Figure 4-16. Tension Release

4.16 Ball Pivot Joint Tension Adjustment

2

1

4

CR

AFTSM

AN

5

3

MA339900

A. Adjustment

(1) Remove screw (1, Figure 4-16) and slide ball

pivot sleeve (2) up out of way.

(2) Rotate cross tube (3) until adjustment hole (4)

appears in adjustment window opening.

NOTE

There are three settings to which the ball pivot cam (5) can be set: light tension, medium tension, or stiff tension (see Figure 4-16). These settings may be changed according to the operator’s preference.

(3) Insert screwdriver into adjustment hole (4).

Then, using screwdriver, rotate ball pivot cam (5) to the desired tension setting.

(4) Remove screwdriver and move cross tube (3)

about the ball pivot joint in a circular motion and up and down motion to ensure the setting is the one desired. Move cross tube (3) to a non-horizontal position and release it. The cross tube should not drift in any direction. If it does, a higher tension setting is required.

1

2

4

LOWER

LIGHTHEAD

RAISE

LIGHTHEAD

3

MA340000

Figure 4-17. Cross Tube

Counterbalance

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(5) Repeat steps 3 and 4 until the desired tension

adjustment is achieved with no drifting of cross tube. If a satisfactory tension adjustment cannot be achieved, perform cross tube counterbalance adjustment procedure (refer to para 4.13) and then repeat ball pivot joint tension adjustment procedure.

(6) Slide ball pivot sleeve (2) down into position

and secure with screw (1).

4.17 Ball Pivot and / or Ball Pivot Stop Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(3) Disconnect two wires (3) from two wires (4).

CAUTION

The cross tube / lighthead is very heavy.

You may need to use an assistant. Use proper lifting techniques to prevent injury or back strain.

(4) While supporting cross tube / lighthead (5),

remove two screws (6) and then cross tube / lighthead from down tube (7).

NOTE

Ball pivot joint will not have any tension on it at all if ball pivot cam is in proper position.

(5) Insert a screwdriver or punch into adjustment

hole (8) and rotate ball pivot cam to "Assembly / Disassembly" position.

(6) Cut quick disconnect terminals (9) from two

wires (3), making sure to cut as close to terminals as possible to preserve wire length.

(1) Disconnect electrical powe r to unit. (2) Remove screw (1, Figure 4-18) and slide ball

pivot sleeve (2) up out of way.

2

1

4

11

7

6

10

(7) Using a hammer and punch, drive out groove

pin (10) and remove ball pivot assembly (11) from cross tube (5).

9

3

5

ASSEMBLY / DISASSEMBLY

POSITION

8

MA340500

Figure 4-18. Ball Pivot Removal / Installation

B. Disassembly

Return To Table Of Contents

SECTION IV

MAINTENANCE / SERVICE

(1) Using retaining ring pliers, remove retaining

ring (1, Figure 4-19) and washer (2) from ball pivot shaft (3).

NOTE

There are serrations on one end of groove pin (4). Drive groove pin so serrations do not go thru ball pivot shaft.

(2) Using a hammer and punch, drive groove

pin (4) out of ball pivot shaft (3).

(3) Remove ball pivot cam (5), three wave washers

(6), washer (7), two wave washers (8), thrust washer (9), washer (10), and ball pivot bearing (11) from ball pivot shaft (3).

NOTE

If it is necessary to remove the ball pivot stop, perform remaining steps. One method of removing flange bearings is to use vise grips to rotate flange bearings and loosen them; then use a screwdriver to pry them out.

(4) Remove two flange bearings (1, Figure 4-20)

from ball pivot shaft (2).

1

2

4

5

7

6

8

9

10

11

3

MA340601

Figure 4-19. Ball Pivot Disassembly / Assembly

(5) Remove ball pivot brake (3), ball pivot housing

(4), and ball pivot stop (5) from ball pivot shaft (2).

(6) If broken, remove groove pin (6).

C. Assembly

NOTE

New groove pins should be used anytime they are removed.

(1) If removed, install groove pin (6, Figure 4-20).

NOTE

To install correctly, make sure raised portion of ball pivot stop (5) is facing toward top of ball pivot shaft (2). Also, make sure the concave of ball pivot brake (3) faces the ball pivot.

(2) Install ball pivot stop (5), ball pivot housing (4),

and ball pivot brake (3) on ball pivot shaft (2).

(3) Install two flange bearings (1) on ball pivot

shaft (2).

NOTE

To install correctly, make sure teflon side of thrust washer (9) is placed against washer (10).

(4) Install ball pivot bearing (11, Figure 4-19),

washer (10), thrust washer (9), two wave washers (8), washer (7), three wave washers (6),

and ball pivot cam (5) on ball pivot shaft (3).

NOTE

New groove pins should be used anytime they are removed.

(5) Using a hammer and punch, drive groove pin

(4) into ball pivot shaft (3).

SECTION IV

MA341100

Return To Table Of Contents

MAINTENANCE / SERVICE

(3) Position ball pivot assembly (11) on cross tube

(5). Then, insert a punch through pin hole.

EQUIPMENT ALERT

2

installed. Failure to do so will result in wires being sheared off.

Use 5/16” punch or similar device to divert

the wires while the groove pin is being

5

NOTE

When installing groove pin (10), be sure to insert the non-grooved end of the pin into the ball pivot assem-

4

6

3

bly (5) first. New groove pins should be used anytime they are removed.

(4) Using punch as a wire diverter to keep wires

from being sheared off, install groove pin (10) to secure cross tube / lighthead (5) in ball pivot

assembly (11).

1

Figure 4-20. Ball Pivot Stop Removal / Installation

(6) Install washer (2) on ball pivot shaft (3) and

secure with retaining ring (1).

D. Installation

EQUIPMENT ALERT

When feeding wires (3, Figure 4-16) thru

ball pivot assembly (11), be sure to get one wire on each side of the pins that go thru the ball pivot shaft. Failure to do so could result in the wires being severed.

(1) Feed wires (3, Figure 4-18) through ball pivot

assembly (11).

(2) Strip insulation from wires (3); then install one

quick disconnect (9) on each wire (3).

WARNING

Make sure screws (6) are installed cor-

rectly. Failure to do so could allow the light assembly to fall, striking and injuring a patient or staff member.

NOTE

There are three screw holes in ball pivot assembly (11); two holes are larger and have coarser threads. Use these two holes to secure cross tube with screws (6). The other hole is for securing ball pivot sleeve with screw (1).

(5) Insert ball pivot assembly (11) into down

tube (7) and secure with two screws (6), making sure wires (3) are fed up into down tube.

(6) Connect two wires (3) to two wires (4).

(7) Adjust ball pivot joint tension (Refer to

para 4.14).

(8) Slide ball pivot sleeve (2) down into position

and secure with screw (1).

(9) Connect electrical power to unit.

SECTION IV

MA480800

Return To Table Of Contents

MAINTENANCE / SERVICE

4.18 Lamp Tube Brake Adjustment

A. Adjustment

(1) Slide pivot sleeve (1, Figure 4-21) up out of

way.

2

1

5

6

3

4

(9) Slide pivot sleeve (1) down over pivot joint,

making sure the indentations of the pivot sleeve seat on screws.

4.19 Lighthead Brake Adjustment

A. Adjustment

(1) Remove two screws (1, Figure 4-22) from lamp

tube (2); then separate lamp tube (2) from lighthead (3) as far as wiring will allow.

3

1

5

2

Figure 4-21. Lamp Tube Brake Adjustment

(2) Remove two screws (2) from cross tube (3);

then separate lamp tube (4) from cross tube as far as wiring will allow.

(3) Loosen jam nut (5).

(4) Adjust nut (6) to tighten or loosen braking ten-

sion.

(5) While holding nut (6) stationary, tighten jam

nut (5) to 20 to 30 ft.-lbs (27.1 to 40.7 N•m).

(6) Install lamp tube (4) in cross tube (3) and

secure with two screws (2).

(7) Check brake adjustment. The lamp tube brake

should hold when released and not allow the lamp tube to drift on its own, but also should not be too stiff as to prevent easy positioning by operator. If possible, consult the operator(s) on their desired brake tension setting.

(8) Repeat steps 2 through 7 until satisfactory

brake adjustment is achieved.

4

MA480900

Figure 4-22. Lighthead Brake Adjustment

(2) Loosen jam nut (4).

(3) Adjust nut (5) to tighten or loosen braking ten-

sion.

(4) While holding nut (5) stationary, tighten jam

nut (4) to 20 to 30 ft.-lbs (27.1 to 40.7 N•m).

WARNING

Make sure screws (1) are installed cor-

rectly. Failure to do so could allow the lighthead to fall, striking and injuring a patient or staff member.

(5) Install lighthead (3) in lamp tube (2) and secure

with two screws (1).

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(6) Check brake adjustment. The lighthead brake

should hold when released and not allow the lighthead to drift on its own, but also should not be too stiff as to prevent easy positioning by operator. If possible, consult the operator(s) on their desired brake setting.

(7) Repeat steps 1 through 6 until satisfactory

brake adjustment is achieved.

4.20 Lighthead Pivot Bearing Stop Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers / shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

(2) Remove two screws (1, Figure 4-23) and par-

tially separate lighthead (2) from lamp tube (3).

(3) Disconnect two wires (4) from two wires (5) and

remove lighthead (2).

(4) Remove nut (6), nut (7), three washers (8),

wave washer (9), washer (10), wave washer (11), and pivot bearing stop (12) from shaft (13).

(5) If necessary, remove wave washer (14) from

shaft (13).

B. Installation

(1) If removed, install wave washer (14) on shaft

(13).

2

1

3

13

14

5

4

11

6

9

7

6

12

10

8

MA484400

Figure 4-23. Lighthead Pivot Bearing Stop Removal / Installation

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(2) Install pivot bearing stop (12), wave washer

(11), washer (10), wave washer (9), three washers (8), nut (7), and nut (6) on shaft (13). Do not tighten nuts (6 and 7) at this time.

(3) Adjust nut (7) to tighten or loosen braking ten-

sion.

(4) While holding nut (7) stationary, tighten jam nut

(6) to 20 to 30 ft.-lbs (27.1 to 40.7 N•m).

(5) Connect two wires (5) to two wires (4).

WARNING

Make sure screws (1) are installed cor-

rectly. Failure to do so could allow the lighthead assembly to fall, striking and injuring a patient or staff member.

(6) Insert lighthead (2) in lamp tube (3) and secure

with two screws (1).

(7) Check brake adjustment. The lighthead brake

should hold when released and not allow the lighthead to drift down on its own, but also should not be too stiff as to prevent easy positioning by the operator. If possible, consult the operator(s) on their desired brake setting.

(3) Remove four screws (1, Figure 4-24) and ceil-

ing cover (2) from ceiling plate assembly (3).

(4) While pulling wires (4) up thru down tube (5),

remove two screws (6) and down tube from main pivot housing (7).

NOTE

There are serrations on one end of groove pin. Drive groove pin (1, Figure 4-25) so that serrations do not go thru main shaft weldment (2).

(5) Using a hammer and punch, drive groove pin

(1, Figure 4-25) out of main shaft weldment (2) and remove washer (3), main pivot housing (4) and main pivot stop (5) from main shaft weldment.

(6) If broken, remove groove pin (6 and / or 7).

(8) Repeat steps 3 thru 7 as necessary until

desired braking action is attained.

(9) Connect electrical power to unit.

4.21 Main Pivot Stop Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(1) Disconnect electrical power to unit.

(2) Remove cross tube. (Perform steps 1 thru 4

of para 4.15, Removal).

Figure 4-24. Ceiling Cover / Down Tube

Removal / Installation

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(3) Coat threads of two screws (6, Figure 4-24)

with removable threadlocking adhesive (Locktite 242).

WARNING

Make sure screws (6) are installed cor-

rectly. Failure to do so could allow the lighting system to fall, striking and injuring a patient or staff member.

NOTE

Attaching wires (4) to a longer, stiffer piece of wire will assist in feeding wires (4) thru down tube.

(4) While feeding two wires (4) up thru down

tube (5), install down tube on main pivot housing (7) and secure with two screws (6). Tighten screws to 40 to 50 in-lbs (4.5 to 5.6 N m).

Figure 4-25. Main Pivot Stop

Removal / Installation

B. Installation

NOTE

New groove pins should be used anytime they are removed.

(1) If removed, install groove pin (6 and / or 7, Fig-

ure 4-25).

EQUIPMENT ALERT

Make sure that strain relief knot (A) is

above the groove pin (1) and that only one wire is on either side of the groove pin. Also, when installing groove pin, make sure it doesn’t knick or tear the wires.

(5) Install ceiling cover (2) on ceiling plate assem-

bly (3) and secure with four screws (1).

(6) Install cross tube. (Perform steps 5 thru 8 of

para 4.15, Installation).

(7) Check for correct installation; if main pivot

housing was installed correctly, the down tube can be rotated 580°.

(8) Connect electrical power to unit.

4.22 Lamp Tube Pivot Stop Removal / Installation

A. Removal

WARNING

Always disconnect electrical power to

the unit before removing any of the unit’s covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death.

(2) Install main pivot stop (5), main pivot housing

(4) and washer (3) on main shaft weldment (2) and secure by driving groove pin (1) in main shaft weldment.

(1) Disconnect electrical power to unit.

(2) Remove two screws (1, Figure 4-26) and par-

tially separate lighthead (2) from lamp tube (3).

(3) Disconnect two wires (4) from two wires (5) and

remove lighthead (2).

SECTION IV

MA549600

Return To Table Of Contents

MAINTENANCE / SERVICE

(8) Remove nut (9), nut (10), three washers (11),

wave washer (12), washer (13), wave

2

B. Installation

5

1

washer (14), pivot bearing (15), wave washer (16), lamp tube pivot stop (17), and flat washer (18) from shaft (19).

(1) Install flat washer (18), lamp tube pivot stop

(17), wave washer (16), pivot bearing (15), wave washer (14), washer (13), wave washer (12), three washers (11), nut (10), and nut (9) on shaft (19). Do not tighten nuts at this time.

19

15

17

4

3

(2) Feed two wires (4) thru lamp tube (3). Strip

insulation from wires and then install two quick disconnects on two wires (4).

(3) Connect two wires (4) to two wires (5).

(4) Insert lighthead (2) into lamp tube (3) and

secure with two screws (1).

(5) Adjust nut (10) to tighten or loosen braking ten-

sion.

13

(6) While holding nut (10) stationary, tighten jam

11

18

nut (9) to 20 to 30 ft.-lbs (27.1 to 40.7 N•m).

9

WARNING

Make sure screws (2) are installed cor-

rectly. Failure to do so could allow the

secure with two screws (7).

10

16

14

12

8

6

faceplate assembly to fall, striking and injuring a patient or staff member.

(7) Insert lamp tube (3) into cross tube (8) and

7

Figure 4-26. Lamp Tube Pivot Stop

Removal / Installation

(4) Slide pivot sleeve (6) up out of way.

(5) Remove two screws (7) and separate lamp

tube (3) from cross tube (8).

(6) Cut quick disconnect terminals from two

wires (4).

(7) Pull two wires (4) out of lamp tube (3).

(8) Check brake adjustment. The lamp tube brake

should hold when released and not allow the lamp tube to drift on its own, but also should not be too stiff as to prevent easy positioning by operator. If possible, consult the operator(s) on their desired brake setting.

(9) Repeat steps 5 thru 8 as necessary until

desired braking action is attained.

(10) Slide pivot sleeve (6) down over pivot joint,

making sure the indentations of the pivot sleeve seats on screws

(11) Connect electrical power to unit.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

SCHEMATICS AND DIAGRAMS

Return To Table Of Contents

5.1 Electrica l Schematics / Wiring Diagrams

SECTION V

SCHEMATICS AND DIAGRAMS

SECTION V

Figure 5-1 illustrates the logic / current flow and wiri ng connections between the electr i c al co mpo nent s in the 354 models listed. Since each junction box is wired separately, the electrical schematic / wiring diagram for a dual lighting system is the same.

JUNCTION BOX

YELLOW (117.0 VAC OR LOWER)

ORANGE 117.0 VAC TO 123.1 VAC)

RED (123.1 VAC OR HIGHER)

BLACK

(*)

BLACK

015-0708-07

015-0725-11

GREEN / YELLOW

F1

LINE FUSE

120 VAC

(SUPPLIED BY

CUSTOMER)

TRANSFORMER

INPUT LEADS

WHITE

BLACK

GREEN

114 V. 120 V. 126 V.

For electrical schematic / wiring diagram for the 355 portion of the 354 (-016 thru -019) combination units, refer to the 355 Service and Parts Manual. (Midmark part number: 004-0105-00)

LEGEND

= WIRE NUT CONNECTION

= BULLET CONNECTION

TRANSFORMER

(20.82 VAC [+/-0.62 VAC]

OUTPUT-LOADED)

TRANSFORMER

BLUE

BROWN

OUTPUT LEADS

015-0708-12

BLUE

ON / STANDBY

SWITCH

015-0708-13

BLUE

BROWN

015-1136-00

015-0708-22

BLACK

WHITE

FAN MOTOR

BULB

ASSEMBLY

NOTE

Measure facility line voltage; then connect the power lead (white wire) to the appropriate input tap.

117.0 VAC or lower - Use YELLOW input tap

117.1 to 123.0 VAC - Use ORANGE input tap

123.1 VAC or higher - Use RED input tap

015-0708-14

+

354 (-001, -002, -007, -008, -016, -018) use 015-0708-15

354 (-003, -004, -009, -010, -017, -019) use 015-0708-17

‡ 354 (-001, -002, -007, -008, -016, -018) use 015-0708-16

354 (-003, -004, -009, -010, -017, -019) use 015-0708-18

Figure 5-1. Electrical Schematic / Wiring Diagram

354(-001 thru -004, -007 thru -010 & -016 thru -019)

015-0708-22

015-1136-00

MA482701f

SECTION V

Return To Table Of Contents

SCHEMATICS AND DIAGRAMS

Figure 5-2 illustrates the logic / current flow and wiring connections between the electrical components in the 354 Single Ceiling Light models listed.

F1

LINE FUSE

GRN / YEL

015-1170-04

BLACK

015-1170-02

YELLOW

ORANGE

TERMINAL

BLOCK

G N / 126 V N / 120 V N / 114 V L

LEGEND

F1 = FUSE T1 = THERMAL CUTOUT FUSE

= SPLICE CONNECTION / TERMINATION

= QUICK DISCONNECT CONNECTION

JUNCTION BOX

RED

BLACK

WHITE (*)

BLACK

GREEN

120 VAC

SUPPLIED BY

CUSTOMER

T1

S1 - BLUE

BLUE

015-0708-18 (8' UNITS)

015-0708-16 (9' UNITS)

BLUE

015-0708-13

TRANSFORMER

(20.82 VAC [+/-0.62 VAC]

OUTPUT {LOADED})

S2 - BROWN

BROWN

015-0708-17 (8' UNITS)

015-0708-15 (9' UNITS)

BROWN

015-0708-14

ON / STANDBY

SWITCH

BLUE

015-0708-12

NOTES: (*) INDICATES TERMINAL SELECTION FOR

NEUTRAL SUPPLY WIRE. SELECT TRANSFORMER TAP BY MEASURING

THE INPUT VOLTAGE. CONNECT POWER LEAD NEUTRAL WIRE (WHITE) TO ONE OF THE FOLLOWING ACCORDING TO THE MEASUREMENT TAKEN:

117.0 OR LOWER = N / 114V TERMINAL

117.1 TO 123.0 = N / 120V TERMINAL

123.1 OR HIGHER = N / 126V TERMINAL

BULB

ASSEMBLY

015-1136-00

BLACK

015-0708-22

BLACK

015-0708-22

015-1136-00

FAN

MOTOR

MA557201f

Figure 5-2. Electrical Schematic / Wiring Diagram

354(-025, -026, -028, & -029)

Figure 5-3 illustrates the logic / current flow and wiring

Return To Table Of Contents

connections between the electrical components in the 354 Double Ceiling Light models listed.

SECTION V

SCHEMATICS AND DIAGRAMS

BLACK

YELLOW

ORANGE

YELLOW

ORANGE

RED

G N2 / 126 V N2 / 120 V N2 / 114 V

GRN / YEL

015-1170-04

WHITE (*)

BLACK

015-1170-02

BLACK

015-1170-02

N1 / 126 V N1 / 120 V N1 / 114 V L

BLOCK

TERMINAL

F1 F1

LINE FUSES

120 VAC

SUPPLIED BY

CUSTOMER

LEGEND

F1 = FUSE T1 = THERMAL CUTOUT FUSE

= SPLICE CONNECTION / TERMINATION

= QUICK DISCONNECT CONNECTION

JUNCTION BOX

RED

BLACK

T1

WHITE (*)

BLACK

GREEN

S1 - BLUE

S-2 BROWN

BLUE

015-0708-18 (8' UNITS)

015-0708-13

BROWN

015-0708-16 (9' UNITS)

015-0708-17 (8' UNITS)

015-0708-14

BLUE

ON / STANDBY

T1

OUTPUT {LOADED})

TRANSFORMERS

(20.82 VAC [+/-0.62 VAC]

S1 - BLUE

BLUE

015-0708-15 (9' UNITS)

BROWN

015-0708-18 (8' UNITS)

015-0708-16 (9' UNITS)

BLUE

015-0708-13

ON / STANDBY

BROWN

BLUE

015-0708-12

SWITCH

NOTES: (*) INDICATES TERMINAL SELECTION FOR

NEUTRAL SUPPLY WIRE. SELECT TRANSFORMER TAP BY MEASURING

THE INPUT VOLTAGE. CONNECT POWER LEAD NEUTRAL WIRE (WHITE) TO ONE OF THE FOLLOWING ACCORDING TO THE MEASUREMENT TAKEN:

117.0 OR LOWER = N1 OR N2 / 114V TERMINAL

117.1 TO 123.0 = N1 OR N2 / 120V TERMINAL

123.1 OR HIGHER = N1 OR N2 / 126V TERMINAL WHITE JUMPER WIRE TO BE POSITIONED TO

CONNECT TO LIKE NEUTRAL VOLTAGES FOR N1 & N2 DEPENDING ON MEASUREMENT TAKEN ABOVE: N1 / 114V TO N2 / 114V (OR) N1 / 120V TO N2 / 120V (OR)

S-2 BROWN

015-0708-17 (8' UNITS)

015-0708-15 (9' UNITS)

BROWN

015-0708-14

N1 / 126V TO N2 / 126V

BLUE

015-0708-12

SWITCH

015-1136-00

BLACK

015-0708-22

BLACK

015-0708-22

015-1136-00

BLACK

015-0708-22

BLACK

015-0708-22

BULB

ASSEMBLY

FAN

MOTOR

354 BULB

ASSEMBLY

354 FAN

MOTOR

015-1136-00

MA557101f

015-1136-00

Figure 5-3. Electrical Schematic / Wiring Diagram

354(-031, -032, -034, & -035)

SECTION V

Return To Table Of Contents

SCHEMATICS AND DIAGRAMS

Figure 5-4 illustrates the logic / current flow and wiring connections between the electrical components in the 354 / 355 Combination Light models listed.

BLACK

YELLOW

ORANGE

YELLOW

ORANGE

RED

G N2 / 126 V N2 / 120 V N2 / 114 V

GRN / YEL

015-1170-04

WHITE (*)

BLACK

015-1170-02

BLACK

015-1170-02

N1 / 126 V N1 / 120 V N1 / 114 V L

BLOCK

TERMINAL

F1 F1

LINE FUSES

120 VAC

SUPPLIED BY

CUSTOMER

LEGEND

F1 = FUSE T1 = THERMAL CUTOUT FUSE

= SPLICE CONNECTION / TERMINATION

= QUICK DISCONNECT CONNECTION

354(-037, -038, -040, & -041) Double Combination (354 / 355) Lights

JUNCTION BOX

NOTES: (*) INDICATES TERMINAL SELECTION FOR

RED

BLACK

WHITE (*)

BLACK

T1

GREEN

354

TRANSFORMER

S1 - BLUE

S2 - BROWN

BLUE

015-0708-18 (8' UNITS)

015-0708-16 (9' UNITS)

BLUE

015-0708-13

T1

OUTPUT {LOADED})

(20.82 VAC [+/-0.62 VAC]

(24.55 VAC [+/-0.74 VAC]

BROWN

ON / STANDBY

BLUE

015-0708-17 (8' UNITS)

015-0708-15 (9' UNITS)

015-0708-18 (8' UNITS)

015-0708-16 (9' UNITS)

BLUE

015-0708-13

BROWN

015-0708-14

015-0708-12

SWITCH

355

TRANSFORMER

BLUE

BROWN

015-0708-17 (8' UNITS)

015-0708-15 (9' UNITS)

BROWN

015-0708-14

ON / STANDBY

SWITCH

BLUE

NEUTRAL SUPPLY WIRE. SELECT TRANSFORMER TAP BY MEASURING

THE INPUT VOLTAGE. CONNECT POWER LEAD NEUTRAL WIRE (WHITE) TO ONE OF THE FOLLOWING ACCORDING TO THE MEASUREMENT TAKEN:

117.0 OR LOWER = N1 OR N2 / 114V TERMINAL

117.1 TO 123.0 = N1 OR N2 / 120V TERMINAL

123.1 OR HIGHER = N1 OR N2 / 126V TERMINAL WHITE JUMPER WIRE TO BE POSITIONED TO

CONNECT TO LIKE NEUTRAL VOLTAGES FOR N1 & N2 DEPENDING ON MEASUREMENT TAKEN ABOVE: N1 / 114V TO N2 / 114V (OR) N1 / 120V TO N2 / 120V (OR) N1 / 126V TO N2 / 126V

BROWN

BLUE

015-0708-12

015-0708-22

Figure 5-3. Electrical Schematic / Wiring Diagram

BLACK

015-1114-00

BLACK

015-0737-04

BLACK

015-0737-04

015-1114-00

015-1136-00

WHITE

354 BULB

ASSEMBLY

354 FAN MOTOR

355 BULB

ASSEMBLY

015-1136-00

MA556801f

SECTION VI

Return To Table Of Contents

PARTS LIST

SECTION VI

PARTS LIST

6.1 Introduction

The illustrated parts list provides information for identifying and ordering the parts necessary to maintain the unit in peak operating condition. Refer to paragraph 1.5 for parts ordering information.

6.2 Description of Columns

The Item column of the parts list gives a component its own unique number. The same number is given to the component in the parts illustration. This allows a part number of a component to be found if the technician can visually spot the part on the illustration. The technician simply finds the component in question on the illustration and notes the item number of that component. Then, he finds that item number in the parts list. The row corresponding to the item number gives the technician the part number, a description of the component, and quantity of parts per subassembly. Also, if a part number is known, the location of that component can be determined by looking for the item number of the component on the illustration.

The Part No. column lists the MIDMARK part number for that component.

The Description column provides a physical description of the component.

The Qty. column lists the number of units of a particular component that is required for the subassembly. The letters “AR” denote “as required” when quantities of a particular component cannot be determined, such as: adhesive.

Bullets { • } in the Part No. column and the Description column show the indenture level of a component. If a component does not have a bullet, it is a main component of that illustration. If a component has a bullet, it is a subcomponent of the next component listed higher in the parts list than itself that does not have a bullet. Likewise, if a component has two bullets, it is a subcomponent of the next component listed higher in the parts list than itself that has only one bullet.

6.3 Torque Specifications and Important Assembly Notes

When specific assembly torque specifications, measurements, or procedures have been identified, by our engineering department, as required to assure proper function of the unit, those torque specifications measurements, and procedures will be noted on the parts illustrations. Adherence to these requirements is essential.

Always Specify Model & Serial Number

Page 6-1

Ritter 354 Single Light

Return To Table Of Contents

System

SECTION VI

PARTS LIST

2

1

5

6

3

4

Item Model No. Description Page Item Part No. Description Page

354-001 120 V. Ritter 354 Single Light System - 9’

354-028 (Includes Items 1 thru 5) ..................6-2

354-003 120 V. Ritter 354 Single Light System - 8’

354-025 (Includes Items 1 thru 5) ..................6-2

7

MA481600

1 ••Down Tube Assembly ...................... 6-8

2 ••Single Ceiling Plate Assembly......... 6-9

3 ••Cross Tube Assembly .................... 6-12

4 ••Lamp Tube Assembly .................... 6-13

5 ••354 Lighthead Assembly (Includes

Items 5 thru 7) ............................... 6-14

6 •• ••Bulb Carriage Assembly.............. 6-15

7 •• ••Optic Assembly ........................... 6-16

Always Specify Model & Serial Number

Page 6-2

Ritter 354 Double Light

Return To Table Of Contents

System

1

2

SECTION VI

PARTS LIST

5

6

4

3

7

6

5

4

7

MA481700

Item Model No. Description Page Item Part No. Description Page

354-002 120 V. Ritter 354 Double Light System - 9’

354-034 (Includes Items 1 thru 5) ..................6-3

354-004 120 V. Ritter 354 Double Light System - 8’

354-031 (Includes Items 1 thru 5) ..................6-3

Always Specify Model & Serial Number

1 ••Down Tube Assembly ...................... 6-8

2 ••Double Ceiling Plate Assembly...... 6-10

3 ••Cross Tube Assembly .................... 6-12

4 ••Lamp Tube Assembly .................... 6-13

5 ••354 Lighthead Assembly (Includes

Items 5 and 6)................................ 6-11

6 •• ••Bulb Carriage Assembly.............. 6-15

7 •• ••Optic Assembly ........................... 6-16

Page 6-3

Midmark 354 Single Light

Return To Table Of Contents

System

SECTION VI

PARTS LIST

2

1

5

6

3

4

Item Model No. Description Page Item Part No. Description Page

354-007 120 V. Midmark 354 Single Light System

354-029 9’ (Includes Items 1 thru 5)...............6-4

354-009 120 V. Midmark 354 Single Light System

354-026 8’ (Includes Items 1 thru 5)...............6-4

7

MA48160

1 • • Down Tube Assembly ...................... 6-8

2 • • Single Ceiling Plate Assembly ......... 6-9

3 • • Cross Tube Assembly .................... 6-12

4 • • Lamp Tube Assembly .................... 6-13

5 • • 354 Lighthead Assembly (Includes

Items 5 thru 7) ............................... 6-14

6 • • • • Bulb Carriage Assembly.............. 6-15

7 • • • • Optic Assembly ........................... 6-16

Always Specify Model & Serial Number

Page 6-4

Midmark 354 Double

Return To Table Of Contents

Light System

SECTION VI

PARTS LIST

1

2

5

6

4

3

7

6

5

4

7

MA481700

Item Model No. Description Page Item Part No. Description Page

354-008 120 V. Midmark 354 Double Light System

354-035 9’ (Includes Items 1 thru 5)...............6-5

354-010 120 V. Midmark 354 Double Light System

354-032 8’ (Includes Items 1 thru 5)...............6-5

Always Specify Model & Serial Number

1 ••Down Tube Assembly ...................... 6-8

2 ••Double Ceiling Plate Assembly...... 6-10

3 ••Cross Tube Assembly .................... 6-12

4 ••Lamp Tube Assembly .................... 6-13

5 ••354 Lighthead Assembly (Includes

Items 5 and 6)................................ 6-14

6 •• ••Bulb Carriage Assembly.............. 6-15

7 •• ••Optic Assembly ........................... 6-16

Page 6-5

Ritter 354 Combination

Return To Table Of Contents

Light System

1

SECTION VI

PARTS LIST

Note:

2

Refer to the appropriate 355 Service and Parts Manual when servicing the 355 portion of this Lighthead

8

3

6

5

4

7

MA481800

Item Model No. Description Page Item Part No. Description Page

354-016 120 V. Ritter 354 / 355 Combo. Light Sys.

354-040 9’ (Includes Items 1 thru 5)...............6-6

354-017 120 V. Ritter 354 / 355 Combo. Light Sys.

354-037 8’ (Includes Items 1 thru 5)...............6-6

Always Specify Model & Serial Number

1 • • Down Tube Assembly ...................... 6-8

2 • • Combination Ceiling Plate Assy..... 6-11

3 • • Cross Tube Assembly .................... 6-12

4 • • Lamp Tube Assembly .................... 6-13

5 • • 354 Lighthead Assembly (Includes

Items 6 and 7)................................ 6-14

6 • • • • Bulb Carriage Assembly.............. 6-15

7 • • • • Optic Assembly ........................... 6-16

8 • • 355 Lighthead Assembly (Refer to

355 Service and Parts Manual [Part

Number 004-0105-00].....................Ref.

Page 6-6

Midmark 354 Combination

Return To Table Of Contents

Light System

1

2

SECTION VI

PARTS LIST

Note: Refer to the appropriate 355 Service and Parts Manual when servicing the 355 portion of this Lighthead

8

3

6

5

4

7

MA481800

Item Model No. Description Page Item Part No. Description Page

354-018 120 V. Midmark 354 / 355 Combo. Light 354-041 System 9’ (Includes Items 1 thru 5) ...6-7

354-019 120 V. Midmark 354 / 355 Combo. Light 354-038 System 8’ (Includes Items 1 thru 5) ...6-7

Always Specify Model & Serial Number

1 ••Down Tube Assembly ...................... 6-8

2 ••Combination Ceiling Plate Assy. .... 6-11

3 ••Cross Tube Assembly .................... 6-12

4 ••Lamp Tube Assembly .................... 6-13

5 ••354 Lighthead Assembly (Includes

Items 6 and 7)................................ 6-14

6 •• ••Bulb Carriage Assembly.............. 6-15

7 •• ••Optic Assembly ........................... 6-16

8 ••355 Lighthead Assembly (Refer to

355 Service and Parts Manual [Part

Number 004-0105-00]) ...................Ref.

Page 6-7

Down Tube Assembly

Return To Table Of Contents

18

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

10 40-50 IN-LBS

(4.5 - 5.6 N•M

13

12

1

4

5

6

7

8

9

20

2

19

11

10

3

14

15

17

16

MA553200

Used on units with Serial Number KN1000, KP1000, KS1000, KT1000, LY1000, LZ1000,

MA1000, MB1000, MD1000, ME1000 thru Present

& MX1000 thru MX 1112, MZ1000 thru MZ1167

Item Part No. Description Qty. Item Part No. Description Qty.

002-0572-00 8’ Dow n Tube Assembly Kit (Includ es

Items 1 thru 11)......................................1

002-0571-00 9’ D own Tube Assembly Kit (Includes

Items 1 thru 11)......................................1

1 • 030-1007-00 • Main Shaft Weldment.......................... 1

2 • 002-0561-00 • Main Pivot Stop Kit (Includes I te m 9)..1 3 • 029-1935-00 • Main Bearing Assemb ly (Includes

Items 4 thru 7).....................................1

4 • • 016-0540-02 • • DX Bearing.......................................1

5 • • 042-0157-01 • • Groove Pin........................................1

6 • • 057-0412-00 • • Main Pivot Housing...........................1

7 • • 016-0131-15 • • Flanged Bearing...............................1

8 • 045-0001-113 • Washer................................................ 1

9 • 042-0157-01 • Groove Pin.......................................... 1

10 • 040-0010-131 • Screw (Apply Loctite #042-0024-00)...2

11 • 052-0314-00 • 8’ Down Tube......................................1

• 052-0264-00 • 9’ Down Tube......................................1

Always Specify Model & S eri a l Nu m ber

Rev. 1/03

12 040-0010-132 Screw .................................................... 4

13 053-0733-00 Single Ceiling Cover (Shown)............... 1

053-0758-00 Double Ceiling Cover (Not Shown)....... 1

14 040-0010-131 Screw .................................................... 2

15 053-0807-00 Ball Pivot Sleeve...................................1

16 040-0008-91 Screw .................................................... 1

17 Cros s Tube Assem bl y (Refer to “Cross

Tube Assembly” Elsewhere).............Ref.

18 Ceiling Plate (Refer to “Single or

Double Ceiling Plate Assembly” Else-

where) ...............................................Ref.

19 041-0375-01 Nut (Single Units)..................................6

041-0375-01 Nut (Double Units)............................... 12

20 045-0001-09 Lockwasher (Single Units) ....................3

045-0001-09 Lockwasher (Double Units)................... 6

21 002-0592-00 Dimmer Control Kit (Not Shown)........... 1

Page 6-8

Down Tube Assembly

Return To Table Of Contents

18

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

10 40-50 IN-LBS

(4.5 - 5.6 N•M

13

12

1

20

19

11

10

4

2

5

6

3

14

7

8

9

17

15

16

Used on units with Serial Number MX1113 & MZ1168 thru Present

Item Part No. Description Qty. Item Part No. Description Qty.

002-0572-00 8’ Dow n Tube Assembly Kit (Includ es

Items 1 thru 11)......................................1

002-0571-00 9’ D own Tube Assembly Kit (Includes

Items 1 thru 11)......................................1

1 • 030-1007-00 • Main Shaft Weldment.......................... 1

2 • 002-0561-00 • Main Pivot Stop Kit (Includes I te m 9)..1 3 • 029-1935-00 • Main Bearing Assemb ly (Includes

Items 4 thru 7).....................................1

4 • • 016-0540-02 • • DX Bearing.......................................1

5 • • 042-0157-01 • • Groove Pin........................................1

6 • • 057-0412-00 • • Main Pivot Housing...........................1

7 • • 016-0131-15 • • Flanged Bearing...............................1

8 • 045-0001-113 • Washer................................................ 1

9 • 042-0157-01 • Groove Pin.......................................... 1

10 • 040-0010-131 • Screw (Apply Loctite #042-0024-00)...2

11 • 052-0314-00 • 8’ Down Tube......................................1

• 052-0264-00 • 9’ Down Tube......................................1

MA553200

12 040-0010-132 Screw .................................................... 4

13 053-0733-00 Single Ceiling Cover (Shown)............... 1

053-0758-00 Double Ceiling Cover (Not Shown)....... 1

14 040-0010-131 Screw .................................................... 2

15 053-0807-00 Ball Pivot Sleeve...................................1

16 040-0010-124 Screw .................................................... 1

17 Cros s Tube Assem bl y (Refer to “Cross

Tube Assembly” Elsewhere).............Ref.

18 Ceiling Plate (Refer to “Single or

Double Ceiling Plate Assembly” Else-

where) ...............................................Ref.

19 041-0375-01 Nut (Single Units)..................................6

041-0375-01 Nut (Double Units)............................... 12

20 045-0001-09 Lockwasher (Single Units) ....................3

045-0001-09 Lockwasher (Double Units)................... 6

21 002-0592-00 Dimmer Control Kit (Not Shown)........... 1

Always Specify Model & S eri a l Nu m ber

Page 6-8.1

Single Ceiling

Return To Table Of Contents

Plate Assembly

TORQUE LEGEND

ITEM# TORQUE

13 18-22 FT-LBS

(24.3-29.7 N•M

1

SECTION VI

PARTS LIST

8

9

7

1

5

3

4

6

10

11

12

21

16

2

13

14

9

19

15

1

20

MA319000

Used on units with Serial Number prefixes KN, KP, KS, KT, LY, LZ, MA, MB, MD, and ME

Item Part No. Description Qty. Item Part No. Description Qty.

029-1934-01 Ceiling Plate Assembly-Single

(Includes Items 1 thru 18)......................1

1 • 040-0010-18 • Screw...................................................9

2 • 050-3591-00 • Junction Box Cov e r...... .................... ....1

3 • 053-0068-01 • Snap Bushing........................ ..............1

4 • 050-3595-00 • Junction Box Divider............................1

5 • 002-0606-00 • Transformer Kit [120 VAC]...................1

6 • 050-3599-00 • Junction Box............. ...........................1

7 • 045-0001-49 • Washer................................................3

8 • 040-0375-62 • Screw...................................................3

9 • 015-0969-00 • Fuse Holder Assembly (In cludes

Body, Cap, Washer and Nut)..............1

10 • 045-0001-04 • Lockwasher.........................................2

Always Specify Model & Serial Number

11 • 041-0010-00 • Nut ......................................................2

12 • 030-1024-00 • Ceiling Plate Weldment............... ........1

13 • 041-0375-01 • Nut ......................................................3

14 • 015-0346-08 • Fuse (3 amp)...................... .................1

15 • 045-0001-31 • Lockwasher.........................................2

16 • 045-0001-09 • Lockwasher.........................................3

17 • 015-0013-00 • Cable Tie (Not Shown)........................1

18 • 015-1113-00 • Wire Nut - Grey (Not Shown)..............2

• 800400 • Wire Nut - Orange (Not Shown)..........5

19 561-0191-00 Electric Shock Label..............................1

20 061-0611-00 Fuse Replacement Label............... ........1

21 561-0318-00 U.L. / C.U.L. Label .................................1

Rev. 4/01

Page 6-9

Single Ceiling

Return To Table Of Contents

Plate Assembly

1

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

6 18-22 FT-LBS

(24.3-29.7 N•M)

3

4

2

4

17

2

10

11

12

13

2

14

15

16

5

9

7

2

6

18

Used on units with Serial Numbers MX1000 thru Present & MZ1000 thru Present

Item Part No. Description Qty. Item Part No. Description Qty.

029-2358-00 Ceiling Plate Assembly-Single

1 • 040-0375-62 • Screw...................................................3

2 • 040-0010-18 • Screw.................................................10

3 • 050-4586-00 • Junction Box.................... ................... .1

4 • 015-1259-01 • Fuse Holder Assembly (Includes

5 • 015-0346-29 • Fuse (1.6 A. - 250 V.) ..........................1

6 • 041-0375-01 • Nut.......................................................3

7 • 045-0001-09 • Lockwasher .........................................3

8 • 030-1225-00 • Ceiling Plate Weldment.......................1

8

(Includes Items 1 thru 15)......................1

Body, Cap, Washer and Nut) ...............1

Always Specify Model & Serial Number

MA552801f

9 • 050-4587-00 • Junction Box Cover.............................1

10 • 040-0006-77 • Screw..................................................2

11 • 015-1373-00 • Terminal Block.....................................1

12 • 053-0068-07 • Snap Bushing...................................... 1

13 • 002-0606-00 • Transformer Kit....................................1

14 • 050-4588-00 • Junction Box Divider...........................1

15 • 045-0001-31 • Lockwasher.........................................2

16 061-0748-00 Terminal Block Label - Single................1

17 061-0653-00 Earth (Ground) Label.............................1

18 061-0744-00 Fuse Replacement Label............... ........1

Rev. 4/01

Page 6-9.1

Double Ceiling

Return To Table Of Contents

Plate Assembly

TORQUE LEGEND

ITEM# TORQUE

13 18-22 FT-LBS

(24.3-29.7 N•M

3

1

19

15

1

SECTION VI

PARTS LIST

8

7

5

4

3

10

11

1

2

15

9

8

1

7

9

6

1

5

10

11

4

12

21

20

MA318900

19

16

1

14

16

9

14

13

Used on units with Serial Number prefixes KN, KP, KS, KT, LY, LZ, MA, MB, MD, and ME

Item Part No. Description Qty. Item Part No. Description Qty.

029-1949-01 Ceilin g Plat e Assembly-Double

(Includes Items 1 thru 18)..................... 1

1 • 040-0010-18 • Screw................................................ 18

2 • 050-3591-00 • Junction Box Cover............................. 2

3 • 053-0068-01 • Snap Bushing ..................................... 2

4 • 050-3595-00 • Junction Box Divider...........................2

5 • 002-0606-00 • Transformer Kit................................... 2

6 • 050-3599-00 • Junction Box....................................... 2

7 • 045-0001-49 • Washer ............................................... 6

8 • 040-0375-62 • Screw..................................................6

9 • 015-0969-00 • Fuse Holder Assembly (Includes

Body, Cap, Washer and Nut).............. 2

Always Specify Model & Serial Number

10 • 045-0001-04 • Lockwasher......................................... 4

11 • 041-0010-00 • Nut.......................................................4

12 • 030-1024-00 • Ceiling Plate Weldment....................... 1

13 • 041-0375-01 • Nut.......................................................6

14 • 015-0346-08 • Fuse (3 amp).......................................2

15 • 045-0001-31 • Lockwasher......................................... 4

16 • 045-0001-09 • Lockwasher......................................... 6

17 • 015-0013-00 • Cable Tie (Not Shown)........................2

18 • 015-1113-00 • Wire Nut - Grey (Not Shown)..............4

• 800400 • Wire Nut - Orange (Not Shown)........10

19 561-0191-00 Electric Shock Label..............................2

20 061-0611-00 Fuse Replacement Label.......................2

21 061-0318-00 U.L. / C.U.L. Label..................................1

Rev. 4/01

Page 6-10

Double Ceiling

Return To Table Of Contents

Plate Assembly

1

2

3

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

6 18-22 FT-LBS

(24.3-29.7 N•M)

13

4

12

2

11

2

10

17

14

4

16

15

5

9

4

7

2

6

18

8

19

Used on units with Serial Numbers MX1000 thru Present & MZ1000 thru Present

Item Part No. Description Qty. Item Part No. Description Qty.

029-2385-00 Ceilin g Plat e Assembly-Double

(Includes Items 1 thru 15)..................... 1

1 • 040-0375-62 • Screw..................................................6

2 • 040-0010-18 • Screw................................................ 12

3 • 050-4586-00 • Junction Box....................................... 1

4 • 015-1259-01 • Fuse Holder Assembly (Includes

Body, Cap, Washer and Nut).............. 2

5 • 015-0346-29 • Fuse (1.6 A. - 250 V.)..........................2

6 • 041-0375-01 • Nut...................................................... 6

7 • 045-0001-09 • Lockwasher......................................... 6

8 • 030-1225-00 • Ceiling Plate Weldment ...................... 1

Rev. 4/01

MA552600

9 • 050-4587-00 • Junction Box Cover .............................1

10 • 040-0006-77 • Screw ..................................................2

11 • 015-1373-01 • Te rminal Block..................... ................1

12 • 053-0068-07 • Snap Bushing......................................1

13 • 002-0606-00 • Transformer Kit ....................................2

14 • 050-4588-00 • Junction Box Divider............................ 1

15 • 045-0001-31 • Lockwasher......................................... 2

16 061-0745-00 Terminal Block Label - Double............... 1

17 061-0653-00 Earth (Ground) Label .............................1

18 061-0744-00 Fuse Replacement Label.......................1

Always Specify Model & Serial Number

Page 6-10.1

Combination Ceiling

Return To Table Of Contents

Plate Assembly

1

2

3

SECTION VI

PARTS LIST

13

4

12

2

11

2

10

17

14

4

16

15

5

9

4

7

2

6

18

8

MA318900Rev. 4

Used on units with Serial Number prefixes KN, KP, KS, KT, LY, LZ, MA, MB, MD, and ME

Item Part No. Description Qty. Item Part No. Description Qty.

029-1949- 02 Ceiling Plate Assembly-Combination

(Includes Items 1 thru 19)......................1

1 • 040-0010-18 • Screw.................................................18

2 • 050-3591-00 • Junction Box Cover..............................2

3 • 053-0068-01 • Snap Bushing......................................2

4 • 050-3595-00 • Junction Box Divider............................2

5 • 002-0606-00 • Transformer Kit (354) ..........................1

6 • 050-3599-00 • Junction Box........................................2

7 • 045-0001-49 • Washer................................................6

8 • 040-0375-62 • Screw...................................................6

9 • 015-0969-00 • Fuse Holder Assembly (Includes Body,

(Includes Body, ...................................2

10 • 045-0001-04 • Lockwasher .........................................4

11 • 041-0010-00 • Nut.......................................................4

Rev. 4/01

12 • 030-1024-00 • Ceiling Plate Weldment.......................1

13 • 041-0375-01 • Nut ......................................................6

14 • 015-0346-08 • Fuse (3 amp).......................................2

15 • 045-0001-31 • Lockwasher.........................................4

16 • 045-0001-09 • Lockwasher.........................................6

17 • 002-0534-00 • Transformer Kit (355)..........................1

18 • 015-0013-00 • Cable Tie (Not Shown)........................2

19 • 015-1113-00 • Wire Nut - Grey (Not Shown)..............4

• 800400 • Wire Nut - Orange (Not Shown) ........ 10

20 561-0191-00 Electric Shock Label..............................2

21 061-0611-00 Fuse Replacement Label.......................2

22 561-0318-00 U.L. / C.U.L. Label.................................1

Always Specify Model & Serial Number

Page 6-11

Combination Ceiling

Return To Table Of Contents

Plate Assembly

1

2

3

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

6 18-22 FT-LBS

(24.3-29.7 N•M)

14

13

4

12

2

11

2

10

18

15

4

16

17

5

4

19

7

6

8

9

2

MA5527

Used on units with Serial Numbers MX1000 thru Present & MZ1000 thru Present

Item Part No. Description Qty. Item Part No. Description Qty.

029-2385-02 Ceil ing Pl at e As sem bly -Co m bi nation

(Includes Items 1 thru 16)..................... 1

1 • 040-0375-62 • Screw..................................................6

2 • 040-0010-18 • Screw................................................ 12

3 • 050-4586-00 • Junction Box....................................... 1

4 • 015-1259-01 • Fuse Holder Assembly (Includes

Body, Cap, Washer and Nut).............. 2

5 • 015-0346-29 • Fuse (1.6 A. - 250 V.)..........................2

6 • 041-0375-01 • Nut...................................................... 6

7 • 045-0001-09 • Lockwasher......................................... 6

8 • 030-1225-00 • Ceiling Plate Weldment ...................... 1

9 • 050-4587-00 • Junction Box Cover............................. 1

Rev. 4/01

10 • 040-0006-77 • Screw ..................................................2

11 • 015-1373-01 • Te rminal Block..................... ................1

12 • 053-0068-07 • Snap Bushing......................................1

13 • 002-0606-00 • Transformer Kit (354) ..........................1

14 • 002-0642-00 • Transformer Kit (355)...........................1

15 • 050-4588-00 • Junction Box Divider............................ 1

16 • 045-0001-31 • Lockwasher......................................... 2

17 061-0745-00 Terminal Block Label - Double............... 1

18 061-0653-00 Earth (Ground) Label .............................1

19 061-0744-00 Fuse Replacement Label.......................1

20 561-0747-00 C.U.S. Label...........................................1

Always Specify Model & Serial Number

Page 6-11.1

Cross Tube Assembly

Return To Table Of Contents

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

22 3-7 FT-LBS

(4.0-9.5 N•M

23

26

25

34

29

16

33

13

15

14

22

19

18

21

17

20

28

1

2

30

3

5

31

4

6

7

2

8

9

10

11

32

12

29

27

24

36

35

MA3187

Used on units with Serial Number KN1000 thru KN1005, KP10 00 thru KP1011,

KS1000 thru KS1003 & KT1 00 0 thru KT10 03

Item Part No. Description Qty. Item Part No. Description Qty.

029-1920-00 Cr oss Tube Assembly (Includes

Items 1 thru 22.......................................1

1 • 042-0101-05 • Retaining Ring ....................................1

2 • 045-0001-111 • Washer................................................2

3 • 042-0157-01 • Groove Pin..........................................1

4 • 057-0414-00 • Ball Pivot Cam ....................................1

5 • 045-0001-112 • Washer................................................1

6 • 045-0001-110 • Wave Washer......................................4

7 • 016-0671-00 • DU Thrust Washer..............................1

8 • 053-0800-00 • Ball Pivot Bearing................................1

9 • 002-0562-00 • Ball Pivot Stop Kit (Includes Items

3 and 15).............................................1

10 • 042-0157-00 • Groove Pin.......................................... 1

11 • 057-0413-00 • Ball Pivot Housing...............................1

12 • 053-0798-00 • Ball Pivot Brake...................................1

13 • 042-0157-03 • Groove Pin.......................................... 1

14 • 030-1074-00 • Ball Pivot Shaft Weldment..................1

15 • 016-0392-07 • DU Flange Bearing .............................2

16 • 002-0619-00 • Cross Tube Weldment Kit...................1

Always Specify Model & S eri a l Nu m ber

17 • 020-0168-00 • Ballast Housing....................................2

18 • 042-0157-04 • Groove Pin...........................................4

19 • 020-0169-00 • Ballast..................................................1

20 • 525-0024-11 • Spring..................................................3

21 • 040-0250-144 • Screw...................................................1

22 • 040-0312-57 • Screw...................................................2

23 053-0810-00 Housing Cap..........................................1

24 040-0010-70 Screw.....................................................1

25 053-0812-00 Switch Bezel ................................ ..........1

26 015-1086-00 Rocker Switch........................................1

27 040-0006-80 Screw.....................................................2

28 040-0010-131 Screw.....................................................2

29 053-0802-00 Common Pivot Sleeve ...........................1

30 Lam p Tube (Refer to “La m p Tube

Assembly” Elsewhere)......................Ref.

31 061-0708-00 Ritter 354 Model Label...........................2

061-0732-00 Midmark 354 Model Label......................2

32 Serial Number Label .........................Ref.

Rev. 4/01

Page 6-12

Cross Tube Assembly

Return To Table Of Contents

SECTION VI

PARTS LIST

TORQUE LEGEND

ITEM# TORQUE

22 3-7 FT-LBS

(4.0-9.5 N•M

23

26

25

34

29

16

33

13

15

22

14

19

18

21

17

20

28

1

2

30

3

5

31

4

6

7

2

8

9

10

11

32

12

29

27

24

MA318701

Used on units with Serial Number KN1006, KP1012, KS1004, KT1004, LY1000, LZ1000,

MA1000, MB1000, MD1001, ME1000 thru Present

& MX1000 thru MX1112, MZ1000 thru MZ1167

Item Part No. Description Qty. Item Part No. Description Qty.

002-0616-00 Cr oss Tube Assembly (Includes

Items 1 thru 22)......................................1

1 • 042-0101-05 • Retaining Ring.....................................1

2 • 045-0001-111 • Washer................................................ 2

3 • 042-0157-01 • Groove Pin.......................................... 1

4 • 057-0414-00 • Ball Pivot Cam.....................................1

5 • 045-0001-112 • Washer................................................ 1

6 • 045-0001-110 • Wave Washer......................................5

7 • 016-0671-00 • DU Thrust Washer...............................1

8 • 053-0800-00 • Ball Pivot Bearing................................1

9 • 002-0562-00 • Ball Pivot Stop Kit (Include s Item s

3 and 15).............................................1

10 • 042-0157-00 • Groove Pin..........................................1

11 • 057-0413-00 • Ball Pivot Housing...............................1

12 • 053-0798-00 • Ball Pivot Brake...................................1

13 • 042-0157-03 • Groove Pin (Not Reusable)................1

14 • 030-1074-00 • Ball Pivot Shaft Weldment...................1

15 • 016-0392-07 • DU Flange Bearing..............................2

16 • 002-0619-00 • Cross Tube Weldment Kit (Incl. 22) ....1

17 • 040-0006-80 • Screw..................................................2

Always Specify Model & S eri a l Nu m ber

18 • 015-1086-00 • Rocker Switch..................................... 1

19 • 053-0812-00 • Switch Bezel....................................... 1

20 • 061-0708-00 • Ritter 354 Model Label........................2

• 061-0732-00 • Midmark 354 Model Label.................. 2

21 • 118653 • Screw (Apply Loctite #042-0025-00) .. 4

22 • • Ball Pivot (Part of Item 16).................. 1

23 040-0250-144 Screw .................................................... 1

24 040-0312-57 Screw .................................................... 2

25 053-0810-00 Housing Cap ......................................... 1

26 040-0010-70 Screw .................................................... 1

27 020-0169-00 Ballast ...................................................1

28 042-0157-04 Groove Pin............................................ 4

29 020-0168-00 Ballast Housing................................... ..2

30 040-0010-131 Screw .................................................... 2

31 053-0802-00 Common Pivot Sleeve........................... 1

32 Lam p Tube (Refe r to “L am p Tube

Assembly” Elsewhere) ......................Ref.

33 525-0024-11 Spring.................................................... 3

34 Serial Number Label .........................Ref.

Rev. 1/03

Page 6-12.1