Bruno Electra-ride lt User manual

Retail Customers

Please contact your Bruno dealer with any questions or service

concerns, using the contact information shown below:

(Dealer: Place Label Below)

Dealer Name

Address

Telephone No.

INSTALLATION MANUAL

MAN-2750-1

05-17-2011

SRE-2750

ELECTRA-RIDE™ LT

STAIRWAY ELEVATOR

NOTE

This stairway elevator is intended

for indoor use only

in a heated, enclosed location

above 35° F (2° C).

Electra-Ride™ is a trademark of Bruno Independent Living Aids, Inc.®.

Loctite® is a registered trademark of the Henkel Loctite Corporation.

Velcro® is a registered trademark of Velcro Industries B.V.

The warranty for the Electra-Ride™ LT

Stairway Elevator is

rendered null and void

if the unit is installed by

anyone other than an authorized Bruno dealer.

IMPORTANT NOTES

SRE-2750 INSTALL 05-17-2011

IMPORTANT NOTES ............................................2

REGULATORY INFORMATION .....................................4

TECHNICAL SPECIFICATIONS ....................................5

Torque Specications ........................................5

CARTON CONTENTS and RECOMMENDED TOOLS ......................6

INSTALLATION

Fitting the Rail ...........................................7

Application Guide .......................................8-9

Cutting the Rail:Two-Piece Rail Installations ......................11

Cutting the Rail:One-Piece Rail Installations ......................12

Drilling Holes for Charge Strips ...............................13

Rail Joint Assembly .......................................14

Positioning Foot Clamp Assemblies ......................... 14-15

Clamp Wedge Locks.......................................16

Mounting the Carriage on the Upper Rail ........................17

Adjusting the Carriage Angle ............................. 17-18

Right-hand Installations ....................................18

Installing the Seat Assembly.................................19

Installing the Final Limit Ramp and Switch .......................20

ELECTRICAL

Circuit Breaker ..........................................20

Connecting the Power Source (charge contact blocks) ...............21

Connecting the Battery Charger ........................... 22-23

Battery Charger LED's/Fuse Replacement........................24

Infrared Call/Send Transmitter ...............................25

Mounting the Standard IR Call/Send Transmitter...................25

Testing the Call/Send Transmitter .............................26

Circuit Board Diagnostics ................................ 26-27

Learning the Remote IR Transmitter ...........................28

TESTING ELEVATOR OPERATION .................................29

ADJUSTMENTS

Seat Height Adjustment ....................................30

Seat Cover Gap Adjustment .................................31

Seat Swivel Adjustment ....................................31

LUBRICATION ...............................................29

RIGHT-HAND OPERATION

Electrical and Mechanical Changes .............................32

Converting Rocker Switch to Left Armrest........................32

LONG-TERM STORAGE .........................................33

TROUBLESHOOTING...........................................34

YEARLY MAINTENANCE OPERATIONS .............................35

WIRING SCHEMATIC ..........................................36

EXPLODED VIEW AND BILL OF MATERIALS ...................... 37-40

LIMITED WARRANTY ..........................................41

TABLE OF CONTENTS

Thank you for purchasing an SRE-2750 Electra-Ride™ LT Stairway Elevator.

Be sure to check carton contents for shipping damage as soon as they are received.

Also, check the carton contents against the packing list before leaving the shop to install product

on site.

Report any discrepancies immediately to Bruno Independent Living Aids.

Bruno encourages you to read through the installation manual before installing the Stairway

Elevator. Doing so will help you install the elevator more quickly and avoid the frustration of

getting to the job site only to discover that you are missing a critical tool or piece of equipment.

Material safety data sheets (MSDS) on materials used on this unit may be requested through the

Bruno Technical Service Department.

INTRODUCTION AND REGULATORY INFORMATION

The "C" and "US" indicators adjacent to the CSA Mark signify

that the product has been evaluated to the applicable CSA and

ANSI/UL Standards, for use in Canada and the U.S., respectively.

This "US" indicator includes products eligible to bear the "NRTL"

indicator. NRTL, i.e. National Recognized Testing Laboratory, is a

designation granted by the U.S. Occupational Safety and

Health Administration (OSHA) to laboratories which have been

recognized to perform certication to U.S. Standards.

CSA CERTIFICATION

MATERIAL SAFETY DATA SHEETS

208135 ®

This lift is intended to be installed in accordance with the current editions of the National Electric

Code NFPA-70 and applicable sections of ANSI/ASME A18.1.

FDA MEDICAL DEVICE RESPONSIBILITIES

This unit is a US-manufactured FDA-regulated medical device classied in the USA as a Class II

Patient Transporter. The installing dealer has responsibily to report any malfunctions, safety

concerns or events to the manufacturer in a timely manner. The installing dealer also has the

responsibility to ensure that the users are properly trained in the use and operation of the unit.

SRE-2750 INSTALL 05-17-2011

Weight Capacity 275 lbs. (125 kg)

Speed 0 - 32 fpm (0 - 9.75 m/mn)

Power Source two (2) 12-volt sealed, maintenance-free

batteries with 24-volt continuous-duty

charger

Motor 24 VDC, 2-pole, 1/2 hp

Drive self-locking gearbox, rack-and-pinion drive

Control constant pressure switch (armrest and 2 transmitters)

Brake self-locking worm gear

Maximum Incline 45 degrees

Rail aluminum channel with integral drive gear rack

Seat Swivel 0, 67 and (optional) 90 degrees (or combination) at top and bottom

Power Supply 24VDC, 2A switch-mode battery charger powered by 120V wall outlet

SPECIFICATIONS

GRADE 8 (US Fasteners)

3/8-18 Grade 8 45 lb.-ft

3/8-24 Grade 8 50 lb.-ft

7/16-14 Grade 8 70 lb.-ft

7/16-20 Grade 8 80 lb.-ft

½-13 Grade 8 110 lb.-ft

½-20 Grade 8 120 lb.-ft

GRADE 8

BOLT HEAD

METRIC 10.9

BOLT HEAD

GRADE 10.9 (Metric)

(Roughly equivalent to US Grade 8)

M 8 Grade 10.9 25 lb.-ft

M 10 Grade 10.9 47 lb.-ft

M 12 Grade 10.9 83 lb.-ft

M 14 Grade 10.9 133 lb.-ft

Torque Specications

CARTON CONTENTS and TOOLS

The ELECTRA-RIDE™ LT is shipped in (5) cartons. Check the contents of the cartons to be sure

you have all of the components before beginning an installation.

Check the carton contents for shipping damage upon receipt.

Damage claims must be led by the dealer, not the manufacturer. Bruno Independent Living Aids,

Inc.® cannot be responsible for shipping damage.

CARRIAGE BOX

(1) complete carriage assembly including footrest

(1) battery charger

(1) SRE-K-1518 battery charger hardware kit

(2) IR transmitters

(2) transmitter mounting brackets

(2) SRE-K-2701 transmitter mounting hardware kit

(2) pieces of Velcro®

INSTALLATION AND SEAT BOX

(1) complete seat assembly

INSTALLATION PARTS BOX

Parts Box A (see box label for contents)

Parts Box B (see box label for contents)

RAIL BOX (left side)

RAIL BOX (right side)

FOR A FASTER,

SMOOTHER

INSTALLATION:

Be sure you have all

necessary parts and

tools before traveling

to the

installation site.

Tools • Snap ring pliers

• Protractor level, builder's level

• Socket set, metric (10 mm through 19 mm)

• Ratchet, with 6" extension

• Allen wrench set, metric

• Combination wrench set, metric (10 mm through 19 mm)

• Torque wrench (one that handles 50-80 ft.lb./68-108 Nm)

• Phillips screwdrivers

• 3/8" socket (clamp screws)

• 9/16" and 5/8" open-end wrench (limit switch adjustment)

• 5/16" open-end wrench

• Drill with and 1/8", 5/16" and 1/2" bits

• Hacksaw with 2 or 3 blades, or metal cutting bandsaw

• 20' tape measure

• C-clamp

• *Highly recommended*: Bruno Joint Plate Mounting Clamp

(P/N FIX-00525, available from Bruno)

• Wire stripper and crimper

• Flashlight

• Needle-nose pliers

• Scissors or knife

• Extension cord

• File

• 12" adjustable wrench

• 90-degree needle-nose pliers

• Vise-Grip®

Vise-Grip® is a registered trademark of the IRWIN Industrial Tool Company.

SRE-2750 INSTALL 05-17-2011

Left side or right side?

"Left" or "right" refers to the side of the stairway on which

the rail is installed (as viewed from the bottom of the

stairs).

Unless otherwise specied Bruno Stairway Elevators are

shipped from the factory in the left-side conguration.

Conversion to right-side installation is easy (instructions

included later in this manual ).

1. Identify and locate lower rail section appropriate to the

installation (left or right).

FITTING THE RAIL

1. Determine the correct length for the rail by measuring

along a straight line placed on the stairs. (SEE STEP 4

IN THE APPLICATION GUIDE).

To that amount, add Measurement B (STEP 4 IN THE

APPLICATION GUIDE).

This process will allow you to custom t the Elevator

to your customer by determining the most comfortable

seat-to-oor height within the space available at the top

of the stairs.

NOTE: The rail must rest approximately 2" (5 cm) above

the step nosing, and extend from the lower oor

to a point beyond the nosing of the top step (see

Step No. 4 of the Application Guide). In some cases

where the bottom landing is made of material such

as concrete, ceramic tile or slate, the last bracket

on the landing may be omitted. In this case, a

bracket must be added on the second-to-last step

(bottom), and at the top of the stairway.

ASSEMBLY

INSTALLATION

The standard stairway

elevator is suitable for

stairway angles up to

45 degrees.

INSTALLATION

1780 Executive Drive, P.O. Box 84, Oconomowoc, WI 53066 USA

Tel.: (262) 567-4990 1-800-882-8183

Fax: (262) 953-5501 www.bruno.com

Straight Stairway ElEvator application guidE

Dealer No.: _______ P.O. No. _______ Customer: __________ Date: ________

Step 2: Dene Stairway Dimensions and Details

stair tread material ____________________ staircase width

___________________

(32” min. for standard unit)

lower landing material_________________ obstructions______________________

(ex. handrails, moldings)

upper landing material__________________

Step 4: Determine Rail Length

Step 1: Determine Staircase Angle

Step 3: Specify Chair and

Rail Details

hand (looking from bottom of stairs):

left right

chair upholstery

tan vinyl tan fabric

other (specify) __________

additional options

keyswitch on chair

keyed call/send transmitters

commercial/overspeed package

Refer to Step 3 on following pages.

SRE-2750 INSTALL 05-17-2011

INSTALLATION

TOP VIEW FRONT VIEWS SIDE VIEWS

DIMENSIONS ON CHART ARE WITH THE CHAIR

IN THE LOWEST POSITION: 22”.

If A is < 3 or B is >12, then one or more adjustable clamp sets (SRE-27291) are required.

The chair extends approximately 2”

beyond the rail at the upper landing.

ALTERNATE SEAT HEIGHT DIMENSIONS

Measured @ Lower Level:

23”, 24”, 25”

Reduce B by 1.5” for each inch the

seat height is increased.

Step 4

Step 3: SRE-2750 ELECTRA-RIDE™ APPLICATION DETAILS

For installations involving afolding rail, please refer to the insert

"Folding Rail Installation Instructions".

INSTALLATION

SRE-2750 INSTALL 05-17-2011

IMPORTANT NOTE!

Under no circumstances should a rail section be cut shorter than 18” (46 cm).

There must be at least (2) clamps on a short rail section

(one at the rail joint and one at the rail end).

Cutting a rail shorter than 18” (46 cm) would not allow enough room for the

(2) necessary clamps.

Example:

After measuring the staircase, you determine you need 9 feet of rail. With your (2)

8-foot sections you decide to use (1) 8-foot section and cut the remaining (1) foot

from the second 8-foot section. Doing this could yield a rail piece of insufcient length

for support.

Instead, cut at least one foot off one of the 8-foot sections (leaving 7 feet of rail) and

then cutting 2 feet from the second 8-foot section. You will have a (1) 7-foot

section and (1) 2-foot section, both of which are long enough to be properly mounted

(2 clamps minimum per short rail).

CUTTING THE RAIL: two-piece rail installations

NOTE: If you are installing a custom, one-piece rail,

please see the instructions on the next page.

1. Use a metal-cutting power saw or manual hacksaw to

cut the rail to length.

Locate the rail end with just (2) holes. Cut off this

end.

2. Use a le or other appropriate tool to deburr the cut end

of the rail.

Soften any sharp edges which might damage the wiring

insulation.

3. Use a C-clamp to hold the end cap in place at the cut

end of the rail.

Use the holes in the end cap as guides to drill mounting

holes in the rail (5/16" drill bit).

DO NOT CUT OFF THE JOINT END!*

The M6 bolts securing the gear rack must remain intact.

*Unless installing a custom, one-piece rail. See next page.

END CAP: CUT END OF RAIL

INSTALLATION

Procedure for making a custom one-piece rail

You WILL cut off the rail-joint end.

1. Remove the gear rack from the rail using the #5

and #2.5 Allen wrench.

2. Save the M6 x 1 x 25 mm screw!!!!!!

3. Measuring from the NON-JOINT PLATE END, mark

the desired length for the installation.

4. Cut at the joint end.

5. Using the end cap and the drill templates, drill the

end cap holes and charge strip holes as instructed

on the previous page.

6. Cut the end of the gear rack that does NOT have

threaded holes.

NOTE: The nished length of the gear rack must be

3" to 4" shorter than the cut length of the

rail.

7. Mark and drill a .281 (I drill bit) hole in the rail as

shown.

8. Reassemble the gear rack onto the rail by lining up

the threaded hole in the gear rack to the .281 hole

in the rail.

9. Tighten the M6 x 1 x 25 mm screw into this hole.

10. Tighten all M5 set screws.

11. THE M6 X 25 MM MUST BE THREADED

COMPLETELY INTO THE GEAR RACK.

CUTTING THE RAIL: ONE-PIECE RAIL INSTALLATIONS

INSTALLATION

SRE-2750 INSTALL 05-17-2011

On the skin pack parts board, locate the drilling

template (SRE-27204) and the nut and bolt from

hardware kit (SRE-K-2723) (Fig. 1).

1. Slide the template onto the rail (Fig. 2).

NOTE orientation of template to gear rack!

2. Secure the template with a Vise-Grip®(Fig. 3).

3. Using a 5/16” bit, drill one hole in the template

(Fig 3).

4. Insert one M8 x 16 bolt and FINGER TIGHTEN the

nut to hold the template in place while drilling the

remaining holes (Fig. 4).

5. Using a 5/16” bit, drill the remaining (9) holes

(Fig. 5).

6. Remove the Vice-Grip, hardware and template.

7. Using the 1/2” bit, redrill (enlarge) the 3rd, 4th,

7th and 8th holes (Fig. 6).

DRILLING HOLES FOR CHARGE STRIPS

SRE-K-2723

Vise-Grip holding template

while drilling

nger

tighten

INSTALLATION

x 1

gear rack

template and

end of rail ush

Drill

this

hole.

FIG. 1

FIG. 2

FIG. 3

FIG. 4

Drill

remaining

holes (9).

FIG. 5

FIG. 6

3rd 4th 7th 8th

The rail is always installed with the gear rack towards the

center of the stairs and gear teeth facing the wall.

The chamfered edges of the joint plate must face "up"

toward the bottom of the rail.

1. Attach the joint plate with the screws provided:

• insert (2) screws through the joint plate from the underside

of the rail.

• insert (10) screws from the topside of the rail (see left).

2. Make sure the screw heads are ush with the surface of the

inside of the rail.

3. Mount the lower end cap.

RAIL JOINT ASSEMBLY

end cap

joint plate

2.5" (6 cm) from back

edge of rail to wall.

If top or bottom clamp is omitted

(landing is cement or ceramic tile, or

the owner wishes not to drill holes in

the landing), a set of clamps should

be added on the second-to-last step

and at the top of stairway.

POSITIONING

FOOT CLAMP

ASSEMBLIES 1. Loosely assemble the long bolt and nut to the clamp assembly. Do not

tighten the nut too far onto the bolt. Otherwise, it will be difcult to

install the upper clamps onto the rail. (see left).

NOTE: If the application calls for the rail to be set off the oor,

add the clamp wedge locks. See CLAMP WEDGE LOCK instruc-

tions later in this manual.

2. Place clamps in the pattern as indicated below.

Be sure to leave a minimum space of 2.5"* (6 cm) as measured

from the back edge of the rail to the wall.

*The 2.5" clearance is needed for the standard 67-degree seat swivel.

For installations involving the optional 90-degree seat swivel, the rail-to-

wall clearance increases to 3.5" (9 cm).

Frequently check the seat-wall clearance during installation.

clamp placement order

• bottom landing

• rst tread up from bottom landing

• top landing

• rst tread down from top landing

• closest tread above and below the rail joint(s)

• minimum of every third tread over remainder of staircase.

3. Set the rail on the loosely-assembled clamps.

On carpeted oors only:

Place enough cardboard under the bottom end of the rail to raise

rail approximately 16 mm off of the oor.

4. Attach the upper clamp sections to the lower ledge of the rail.

5. Finger tighten the nut, bolt and clamp plates until the clamp plates

touch the rail.

6. Secure the clamps to the rail by tightening the long bolt and nut using

two wrenchs. Torque to 10 ft-lb (13.6 Nm). One to 1-1/2 revolutions on

the wrench will set the torque in the required range.

Do not overtighten the bolts! Rail deformation can occur.

2.5"

(6 cm)

INSTALLATION

SRE-2750 INSTALL 05-17-2011

tape

measure

distance off all step noses:

• hardwood: 2” (5 cm)

• carpet: 2.5 (6 cm)

7. Slide the leg/rail unit off the step noses:

On hardwood oors:

at least 5 cm off all step noses.

On thick carpet:

approximately 2.5" (6 cm) off all step noses so that

when the installation is complete, the rail will rest at

least 5 cm off the step noses. Remove the 16 mm

shim from the bottom of the rail.

8. Starting at the bottom of the rail, secure the legs to

stair treads with the hardware

provided.

NOTE: Screw in one bolt in the back foot of any 4

legs to lightly secure the rail to support the

carriage only (no load or passengers). The

legs will be fully tightened at a later stage.

9. Frequently check the measurements at the key locations

indicated to ensure proper positioning of the foot clamps.

10. Once the legs are positioned and lightly secured

and

before installing the carriage,stand at the top of the

staircase and look down the rail.

The rail should be straight and true.

If the rail is not straight and true, rest a builder's level on

the rail, or route a taut string from the top to the bottom

of the rail.

Measure the gap between the level or string and the

lowest point of the dip.

If this gap is greater than 6 mm, install 6 mm shims at

the low points or reposition the legs.

INSTALLATION ON CARPET

Before securing the foot clamp

assemblies with hardware, add a

16 mm shim under the bottom of

the rail.

POSITIONING FOOT CLAMP ASSEMBLIES (continued)

On hardwood stairs, drill a pilot

hole before inserting fasteners.

If a threaded fastener extends

below an exposed stair tread

trim it ush with pliers.

Bruno ships the stairway

elevator with fasteners

appropriate for wooden stair

treads only. Other stair

material may require different

fasteners.

Please contact Bruno.

Carpet runners on the stairs?

If the installation calls for placing clamps half on a

carpet runner and half on a wood step, place a shim

under the clamp leg resting on the wood.

You do not have to shim both sides of the clamp!

Shim the leg resting on wood until that leg is at the

same height as the carpet.

carpet

wood step

shim

INSTALLATION

Only for installations where the bottom end of the rail

does not contact the oor, Bruno has designed a rail locking

wedge.

BEFORE you begin clamp installation, determine if the bottom

end of the rail will rest on the oor.

If it does not (for example, if the stairs are carpeted but the

bottom landing is not), install the wedge lock to the CLAMPS

ON THE FIRST AND LAST STEPS ONLY.

To install the wedge lock to the top and bottom clamps

only:

1. Loosely assemble the wedge lock to the clamps as shown. The

wedge should swing freely to allow for positioning against the

rail.

2. At the top and bottom of the rail, mount the clamp to the rail

as shown.

NOTE: The teeth of the wedge face up to contact the

rail.

3. Tighten the top clamp bolt to capture the wedge between the

clamp and the lower outside edge of the rail.

4. Tap the wedge with a rubber mallet until the wedge is rmly

seated.

5. Push down on the rail to verify that it does not move.

6. Should you need to remove the wedge, use a at head

screwdriver as shown.

Teeth face up to contact rail.

Wedge must swing in

from top side

(toward top landing)

to hold.

CLAMP WEDGE LOCKS

INSTALLATION

SRE-2750 INSTALL 05-17-2011

MOUNTING CARRIAGE ON UPPER RAIL

1. Remove the carriage from the shipping package.

2. Be careful of the charge contacts under the carriage.

3. Make sure the (4) guide pads are clean.

4.Manually slide the carriage onto the rail until the spur

gear rests against the gear rack.

NOTE: Make sure the gear aligns properly with the rack.

It should not catch on the rack and freely engage.

5. Cut the cable tie at the circuit breaker.

6. Turn the circuit breaker ON.

7. Run the carriage fully onto the rail by pressing the

remote button.

NOTE: During the initial power up, there will be a

delay of up to 10 seconds from the time the

remote button is pushed to the start of

carriage movement. This is normal! Hold down

the remote button until the carriage moves.

8. Continue pressing the button until the carriage reaches

the bottom of the rail.

9. Mount the upper end cap using the M8 x 1.25 x 16 mm

hex head cap screws provided.

1. Turn the circuit breaker OFF.

2. Remove the (2) Phillips screws securing the seat post

front cover.

3. Remove the front cover.

spur gear

meeting gear

rack

circuit

breaker

INSTALLATION

ADJUSTING THE CARRIAGE ANGLE

4. Fold down the footrest.

5. LOOSEN BUT DO NOT REMOVE* the (3) M10 gold zinc

hex head cap screws (17 mm wrench). See left.

6. Place a level on the footrest.

7. Pivot the seat post right or left as necessary to level

the footrest.

8. While holding the seat post steady, tighten the (3) M10

gold/zinc screws to a torque of 80 ft. lbs.

Right-hand installations

1. Fold down the footrest.

2. Remove the M8 hex head screw (see left). This is the

safety lock screw

3. LOOSEN BUT DO NOT REMOVE* the (3) M10 gold zinc

hex head cap screws (17 mm wrench). See above left.

4. Pivot the seat post assembly to the opposite side of the

carriage.

5. Re-insert and tighten the M8 zinc hex head cap (safety

lock) screw.

6. Place a level on the footrest.

7. Pivot the seat post right or left as necessary to level

the footrest.

8. While holding the seat post steady, tighten the (3) M10

gold/zinc screws to a torque of 80 ft. lbs.

The screw will penetrate a hole in the angle retainer lock

plate mounted behind the carriage wall.

*If screws are accidentally

removed, be sure to

re-install the safety

lockwashers (installed at the

factory) when you

re-install the screws.

(3) M10 gold zinc hex head cap screws

M8 zinc hex head cap screw

Refer to torque specications on page 5.

INSTALLATION

SRE-2750 INSTALL 05-17-2011

INSTALLING THE SEAT ASSEMBLY

1. Remove the seat assembly from the shipping package.

2. Remove the snap ring from the pivot tube.

3. SAVE THE SNAP RING!

NOTE: The seat post covers are still removed from the unit

at this stage.

4. Slide the seat post tube into the bushing.

5. Remove the (2) screws securing the seat channel

cover. See left

6. Route the harnesses down through the pivot tube, one

at a time.

7. Remove the carriage jumper. Keep it with the carriage

by sliding it over the harness. See left.

8. Remount the snap ring on the pivot tube.

9. Connect the seat switch and rocker switch.

10. Remount the seat channel cover.

11. Remount the seat post front covers using the (2)

Phillips head screws and bumpers.

INSTALLATION

INSTALLING THE FINAL LIMIT RAMP AND SWITCH

1. Run the carriage to the top of the rail.

2. Note where the nal limit switch is located in

relation to the upper leg.

3. If the nal limit switch is below the upper leg,

snap the plastic nal limit ramp onto the rail just

below the upper leg.

4. Make sure the carriage is at the top of the rail,

then proceed to Step No. 5.

5. If the nal limit switch is above the upper leg, run

the carriage down the rail (approx. 10 cm) to

create room to remove the upper end cap.

6. Slide the nal limit ramp onto the upper end of

the rail.

7. Put the end cap back on.

8. Run the carriage to the top of the rail.

9. Adjust the limit ramp up or down the rail so that

it is located just before the point where the small

roller of the nal limit switch touches the ramp.

10. Tighten the (2) M5 screws (Allen wrench) to

secure the nal limit ramp.

The on/off switch is built into the circuit breaker to

protect the battery, controller and motor circuits in the

Elevator carriage.

It is unlikely that this circuit breaker will ever “trip”

during normal use. However, if the Elevator should

fail to operate, check the circuit breaker as a rst

troubleshooting stop and reset it if necessary.

If the circuit breaker should trip, determine the cause

and correct the situation.

The most frequent causes of a tripped circuit breaker

are (1) a foreign object jamming the rail or gear rack,

and (2) exceeding the maximum rated load capacity.

nal limit ramp

(2) M5 screws

roller

nal limit ramp

CIRCUIT BREAKER

INSTALLATION

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