NordicTrack Revitalize inversion system 2.0 831.14895.1, Revitaliz 831.14895.1 User Manual

Download

Page 1

www.nordictrack.com

Model No. 831.14895.1 Serial No.

Write the serial number in the space above for future reference.

Serial Number Decal

(on the frame behind the backrest)

QUESTIONS?

A UAL

If you have questions, or if parts are damaged or missing, DO NOT

CONTACT THE STORE; please contact Customer Care.

iMPORTANT: Please register this product (see the limited warranty

on the back cover of this manual) before contacting Customer Care.

CALL TOLL-FREE:

1-888-825-2588

Mon.-Fri. 6 a.m.-6 p.m. MT Sat. 8 a.m.-4 p.m. MT

ON THE WEB: www.nordictrackservice.com

Page 2

TABLE OF CONTENTS

WARNING DECAL PLACEMENT .............................................................. 2

IMPORTANT PRECAUTIONS ................................................................ 3

BEFORE YOU BEGIN ...................................................................... 5

PART IDENTIFICATION CHART .............................................................. 6

ASSEMBLY ............................................................................... 7

ADJUSTMENT ........................................................................... 13

ROTATING ON THE INVERSION TABLE ...................................................... 16

DEVELOPING A PROGRAM ................................................................ 17

PART LIST .............................................................................. 18

EXPLODED DRAWING .................................................................... 19

ORDERING REPLACEMENT PARTS .................................................. Back Cover

LIMITED WARRANTY .............................................................. Back Cover

WARNING DECAL PLACEMENT

This drawing shows the location(s) of the warning decal(s). If a decal is missing or illegible, see the front cover of this manual and request a free replacement decal. Apply

the decal in the location shown. Note: The decal(s) may not be

shown at actual size.

User Weight: Max 300 LBS

Weight Crutch: Max 310 LBS Leg Developer: Max 150 LBS

Weight Carriage: Max 150 LBS

Chest Fly Per Arm: Max 50 LBS

Product may not off_=-r_all listed exercises.

Misuse of this [_

machine may result in serious injury.

Read user's manual prior to use and follow

all warnings and

instructions. Do not allow children on

or around machine.

Keep body, clothing, and hair free and clear

of all moving parts. Replace label if

damaged, illegible, or removed.

NordicTrack is a registered trademark of ICON IP, Inc.

Page 3

iMPORTANT PRECAUTIONS

WARNING: Toreducethe.skofse.ous njury,reada. mportantprecautionsand

instructions in this manual and al! warnings on your inversion table before using your inversion table. ICON assumes no responsibility for personal injury or property damage sustained by or through the use of this product.

1. Before beginning any exercise program, 11. consult your physician. This is especially important for persons over age 35 or per- sons with pre-existing health problems.

2. It is the responsibility of the owner to ensure 12. that all users of the inversion table are ade-

quately informed of all precautions.

13.

Your inversion table is intended for home use only. Do not use your inversion table in

a commercial, rental, or institutional setting.

14.

Keep the inversion table indoors, away from moisture and dust. Do not put the inversion table in a garage or covered patio or near

15.

water.

Use the inversion table only on a level sur- face. Cover the floor beneath the inversion

table to protect the floor.

Make sure that all parts are properly tight=

18.

ened each time the inversion table is used. Replace any worn parts immediately.

Keep children under age 12 and pets away

17.

from the inversion table at all times.

Wear athletic shoes with laces to help secure your feet in the inversion table and for foot protection while using the inversion

table.

Always engage the pins on the backrest frame into the same holes in both pivot bars.

Make sure that the pivot bars are held in the brackets on the backrest frame before you

use the inversion table.

Keep hands and feet away from moving parts.

Make sure that the ankle lock is secured

snugly against your ankles and that the short knob is fully tightened before you use

the inversion table.

Make sure that the linking bars are in straight positions before you use the inver-

sion table.

Do not use the handlebars to rotate upward on the inversion table; the handlebars are

for mounting and dismounting the inversion table.

The inversion table is designed to support a maximum user weight of 300 Ibs. (136 kg).

9. Do not use weights with the inversion table.

10.

The inversion table should be used only by persons 6 ft. 8 in. (198 cm) tall or less.

18. Perform all activities on the inversion table in a slow, controlled manner. Aggressive

movement can cause the inversion table to tip over.

19.

Use the inversion table with a partner. Your partner should be ready to return the backrest to the upright position if you can- not complete a rotation.

Page 4

20.if you feel pain or dizziness while using the

inversion table, stop immediately.

21. The following factors and conditions may make inverting inadvisable (this list is not exhaustive; it is intended only for reference). if one or more factors or conditions apply to you, consult your physician before using the

inversion table.

• Pregnancy oHiatai hernia or ventral hernia

° Glaucoma, retinal detachment, or conjunc=

tivitis

• High blood pressure, hypertension, or

recent stroke or transient ischemic attack

- Heart or circulatory disorders for which

you are being treated

• Middle ear infection and extreme obesity

• Spinal injury, cerebral sclerosis, or acutely

swollen joints

• Bone weakness (osteoporosis), recent unhealed fractures, medullary pins, or sur-

gically implanted orthopedic supports

• The use of anticoagulants, including high

doses of aspirin

22. Use your inversion table only as described in this manual.

Page 5

BEFORE YOU BEGIN

Thank you for selecting the NordicTrack ® REVITAL- IZE TM INVERSION SYSTEM 2.0 inversion table. The

inversion table will increase your intervertebral dimen- sion, decrease pressure on intervertebral discs, stretch and relax your muscles, and temporarily relieve back pain associated with the listed conditions.

For your benefit, read this manual carefully before using the inversion table. If you have questions after

ASSEMBLED DIMENSIONS: Height: 5 ft. 2 in. (157 cm)

Width: 3 ft. (91 cm) Depth: 6 ft. 6 in. (168 cm)

Handle

Right Frame

reading this manual, please see the front cover of this manual. To help us assist you, note the product model number and serial number before contacting us. The

model number and the location of the serial number decal are shown on the front cover of this manual.

Before reading further, please review the drawing below and familiarize yourself with the parts that are

labeled.

Headrest

Backrest

Short Adjustment Knob

Long Adjustment Knob

Lock Frame

Foot Frame

Index Handle

Left Frame

Page 6

PART iDENTiFiCATiON CHART

See the drawings below to identify small parts used in assembly. The number in parentheses by each drawing is the key number of the part, from the PART LIST near the end of this manual. Note: If a part is not in the hard- ware kit, check to see if it has been preassembled.

M6 x 37mm Bolt (33)

M6 Washer (62)

MIO Curved Washer (50)

M10 Large Washer (64)

M6 Nut (43)

M10 x 16mm

Button Screw (54)

M4 x 15mm

Screw (58)

M8 x 16mm

Button Bolt (61)

M6 x 18mm

Button Screw (55)

M4 x 20mm

Screw (59)

M4 x 30mm

Screw (63)

M10 x 40mm Button Bolt (69)

M10 x 53mm Button Bolt (49)

M6 x 60mm Button Screw (56)

M10 x 80mm Button Bolt (52)

M10 x 85mm Button Bolt (51)

M8 Locknut (57)

M10 Locknut (65)

M10 x 95mm Button Bolt (53)

Page 7

ASSEMBLY

To make assembly easier, carefully read the fol- lowing information and instructions:

- Assembly requires two persons.

- Place all parts in a cleared area and remove the packing materials. Do not dispose of the packing

materials until assembly is completed.

- For help identifying small parts, use the PART

IDENTIFICATION CHART on page 6.

Before beginning assembly, make sure that you understand the information in

the box above.

Press a 63mm Round Cap (40) onto the Left Base (1).

Next, tighten a Leveling Foot (41) into the Left Base (1).

Attach a Foot (42) to the Left Base (1) with an M4 x 20mm Screw (59).

- The following tools (not included) may be required for assembly:

two adjustable wrenches ,_ one rubber mallet _i'--')

one standard screwdriver

one Phillips screwdriver ,_

Assembly may be more convenient if you have a socket set, a set of open-end or closed-end

wrenches, or a set of ratchet wrenches.

" )

Repeat this step for the Right Base (2).

Attach the Left Base (1) to the Right Base (2) with two M10 x 80mm Button Bolts (52), four M10 Curved Washers (50), and two M10 Locknuts (65). Do not tighten the Locknuts yet.

Attach another Foot (42) to the Right Base (2) with an M4 x 20mm Screw (59).

40.s . "59

Page 8

Attach the Support Bracket (15) to the Center Base (3) with two M4 x 15mm Screws (58).

Attach the Center Base (3) to the Left and Right Bases (1,2) with four M10 x 80mm Button Bolts (52), four M10 Curved Washers (50), and four M10 Locknuts (65). Do not tighten the Locknuts yet.

See the inset drawing. Identify the Center Frame (7).

Apply some of the included grease to both sides of the Left Large Spacer (31).

Attach the Left Large Spacer (31) and the Left Frame (4) to the Center Frame (7) with an M10 Locknut (65), an M10 Large Washer (64), and a 29mm Spacer (48).

Then, press an 89mm Cap (32) into the Center Frame (7).

Repeat this step with the Right Large Spacer (60) and the Right Frame (5).

Grel

Page 9

Attach the Left and Right Frames (4, 5) to the Left and Right Bases (1, 2) with four M10 x 85mm Button Bolts (51) and four M10 Locknuts (65).

See steps 2 and 4. Tighten the M10 Locknuts (65).

Attach the Top Cover (23) and the Bottom Cover (24) to the Center Frame (7) with two M4 x 15mm Screws (58) and an M4 x 30mm Screw (63).

Attach the Center Frame Extension (6) to the Center Frame (7) with two M10 x 53mm Button Bolts (49) and two M10 Locknuts (65).

Page 10

Orient the Headrest Frame (9) and the Backrest Frame (8) as shown.

Attach the Headrest Frame (9) to the Backrest Frame (8) with two M10 x 16mm Button Screws (54).

9. Grease an M10 x 95mm Button Bolt (53).

Pull the indicated Short Adjustment Knob (37) outward as far as possible.

Insert the bracket on the Backrest Frame (8) into the Top Cover (23).

Next, attach the Backrest Frame (8) to the Center Frame Extension (6) with the M10 x 95mm Button Bolt (53) and an M10 Locknut (65).

Then, engage the Short Adjustment Knob (37) into one of the holes in the bracket.

See the inset drawing. Attach an M8 x 16mm Button Bolt (61) and an M8 Locknut (57) to the hole in the end of the bracket on the Backrest Frame (8).

10. Attach the Foot Frame (19) to the Leg Frame (10) with two M10 x 40mm Button Bolts (69)

and two M10 Locknuts (65).

Bracket

19\

Page 11

11. Slide two Foam Pads (22) onto the Lock Frame (11).

Then, press two Pad Caps (45) into the Foam Pads (22).

Next, pull the indicated Long Adjustment Knob (13) outward, insert the Lock Frame (11) into the Leg Frame (10), and then release the Long Adjustment Knob.

Make sure that the Long Adjustment Knob (13) is engaged in the indicated adjust- ment hole in the Lock Frame (11).

Insert an M6 x 37mm Bolt (33) into the Leg Frame (10) and into the loop on the end of the Spring (17). Tighten an M6 Nut (43) onto

the Bolt.

12. Insert the Pad Tube (18) into the welded tube on the Leg Frame (10).

Next, tighten an M4 x 15mm Screw (58) into each side of the Pad Tube (18).

Slide two Foam Pads (22) onto the Pad Tube (18).

Then, press two Pad Caps (45) into the Foam Pads (22).

Hole

13. Pull the indicated Short Adjustment Knob (37) outward as far as possible, and insert the end

of the Leg Frame (10) a few inches into the Backrest Frame (8).

See the inset drawing. Press the indicated tab on the Leg Frame Bushing (38), and

press the Leg Frame Bushing upward into the Backrest Frame (8). Make sure that the tab is in the indicated hole in the Backrest

Frame.

Then, slide the Leg Frame (10) farther into the Backrest Frame (8), and engage the Short

Adjustment Knob (37) into one of the holes in the Leg Frame.

Page 12

14. Attach the Headrest (20) to the Headrest Frame (9) with two M6 x 18mm Button Screws (55), an M6 x 60mm Button Screw (56), and three M6 Washers (62).

Attach the Backrest (21) to the Backrest Frame (8) in the same way.

15. Attach a Handle (12) to the Left Frame (4) with two M10 x 80mm Button Bolts (52), two M10 Curved Washers (50), and two M10 Locknuts (65).

Attach the other Handle (12) in the same way.

Make sure that all parts are properly tight- ened before you use the inversion table.

A WARNING:

HOW TO LOCK THE INVERSION TABLE FOR STORE DISPLAY OR TO PREVENT

UNSUPERVISED USE

ii I iI ,

_' ,,','

'1 "1"

'_ j12

/ /

When the inversion table is displayed in a store, or when it is not in use, it should be locked to prevent unsupervised use. First,

insert the threaded end of the Lock Pin (35) into the Center Base (3), and position

the other end of the Lock Pin on top of the Leg Frame (10). Then, tighten an M10 Locknut (65) onto the Lock Pin.

Page 13

ADJUSTMENT

This section explains how to adjust the inversion table. See DEVELOPING A PROGRAM on page 17 for impor- tant information about how to get the most benefit from the inversion table.

Make sure that all parts are properly tightened each time you use the inversion table. Replace any worn parts immediately. The inversion table can be cleaned with a damp cloth and a mild, non-abrasive detergent. Do not

use solvents to clean the inversion table.

SELECTING THE BACKREST FRAME POSITION

See the inset drawing. The bracket on the Backrest Frame (8) has four adjustment holes. The correct hole to use will depend on your body weight and the desired level of responsiveness. See the chart to determine which hole to use. For example, if you weigh between 200 and 250 pounds and you are a beginning user, the chart recommends that you use hole A.

To adjust the Backrest Frame (8), first pull the Short Adjustment Knob (37) out as far as it will go. Move the Backrest Frame and engage the Short Adjustment Knob into the desired hole in the brack-

et on the Backrest Frame.

Try the inversion table with the Backrest Frame (8) adjusted to each position to determine which one is best for you.

Note: 1 lb. = 2.2 kg

iii! i i !61i !i!i!i!ilil!i ii!i!!ii!iill¸

B C

Hole A Hole A

Hole B Hole B

Hole B Hole C

Hole C Hole D

Page 14

ADJUSTING THE LEG FRAME

The length of the Leg Frame (10) can be adjusted to correspond to your height. Pull the Short Adjustment Knob (37) outward as far as possible.

Slide the Leg Frame (10) into or out of the Backrest

Frame (8) so that the first or second measurement

greater than your height is covered by the Backrest

Frame.

Then, engage the Short Adjustment Knob (37) into the adjustment holes in the Leg Frame and the

Backrest Frame.

Use the inversion table with the Leg Frame (10) adjusted to a few different lengths to determine which length is best for you.

Height 8,

Measurements

ADJUSTING THE LOCK FRAME

To secure your ankles in the inversion table, first pull the Long Adjustment Knob (13) outward as far as possible.

See the inset drawing. Next, pull the Lock Frame (11) away from the Leg Frame (10). Stand on the Foot Frame (19) with the backs of your legs against the indicated Foam Pads (22) and your toes under

the Lock Frame.

Then, push the Lock Frame (11) against your ankles and engage the Long Adjustment Knob (13) into one of the adjustment holes in the Lock Frame. Make sure that the Long Adjustment Knob is engaged in one of the adjustment holes in the

Lock Frame.

22 10

Page 15

SETTING THE INVERSION ANGLE

The inversion table can be set to rotate between 15 degrees and 90 degrees, in 15 degree increments.

To set the inversion angle, pull the Index Handle (25) outward as far as possible, and then turn the Index Handle until the arrow on top of the Index Handle points to the desired degree setting. Then,

release the Index Handle; make sure that the Index Handle is fully engaged.

LEVELING THE INVERSION TABLE

Arrow

If the inversion table rocks slightly on your floor, turn one or both of the Leveling Feet (41) until the

inversion table is level.

LOCKING THE INVERSION TABLE

To lock the inversion table when you are not using it, insert the threaded end of the Lock Pin (35) into the Center Base (3), and position the other end of the Lock Pin on top of the Leg Frame (10). Then, tighten an M10 Locknut (65) onto the Lock Pin.

Page 16

ROTATING ON THE iNVERSiON TABLE

This section explains how to rotate back on the inversion table, and then return to the starting position. Before using the inversion table, see the ADJUSTMENT section starting on page 13 to correctly set up the inversion table. Always exercise with a partner. Your partner should be ready to return the backrest to the upright position if you cannot complete the rotation.

ROTATING BACK ON THE iNVERSiON TABLE ROTATING UP ON THE iNVERSiON TABLE

To rotate back on the inversion table, slowly lift your arms over your head until you reach the desired posi- tion. The speed at which you lift your arms will deter- mine how quickly the inversion table will rotate. Rest your arms in a comfortable position that does not

cause the inversion table to rotate. Note: The inver- sion table will rotate only to the degree setting set by

the index handle.

To return to the starting position, move your hands toward your waist until you rotate to a horizontal posi- tion. Rest in a horizontal position for 30 to 60 seconds before rotating to the starting position. This will allow your body to readjust. Return to the starting position slowly. Dizziness after using the inversion table is an indication that you have returned to the starting posi- tion too quickly.

To rotate up from the fully inverted position, pull your- self up using the handles.

Do not sit up to return to the starting position.

Page 17

DEVELOPING A PROGRAM

This section contains information and suggestions about using the inversion table. Make sure that all parts are properly tightened each time the inversion table is used. Replace any worn parts immediately. See the ADJUST- MENT section starting on page 13 to identify parts referred to in this section.

BENEFITING FROM USING THE INVERSION TABLE INTERMEDIATE PROGRAM

If you feel nauseated while using the inversion table, return to the starting position. Note that it may take a few weeks of use for your inner ear to become accus- tom to being inverted.

Do not use the inversion table right after you have eaten.

Moving while using the inversion table may make it a more comfortable experience, and may help joints and muscles stretch and relax. Always move in a slow,

controlled manner.

The greater the angle at which the inversion table is used, the shorter the time that you should rotate back before rotating up. Increase the amount of inverted time and the angle of use gradually.

Always pay attention to how your body feels as you use the inversion table. Increase the level of intensity only as it is comfortable for you. When you feel like you have had enough, return to the starting position.

BEGINNER PROGRAM

The following are suggestions for persons who are just starting to use the inversion table.

The following are suggestions for persons who have become comfortable using the inversion table as

described under the BEGINNER PROGRAM.

Increase the angle to which the inversion table can rotate, as it is comfortable. Adjust the index handle to allow the inversion table to rotate to up to 60 degrees, a few degrees at a time.

Start to do gentle stretching while using the inversion table.

Gradually increase the amount of time that you use the inversion table to ten minutes or more, two or

three times a day. Routines can be varied from rotat- ing back for one or two minutes and then up for 30 seconds, to rotating back and up for equal amounts of

time.

FULL INVERSION PROGRAM

The following are suggestions for persons who have become comfortable using the inversion table as

described under the INTERMEDIATE PROGRAM and desire to rotate to greater angles. Note that all the

benefits of inversion can be gained by rotating to 60 degrees. Do not attempt to do sit-ups.

Set the index handle to allow the backrest frame to rotate to 15 degrees or less for the first one or two

weeks. This will allow your body time to adjust to the change in gravitational pull.

Use the inversion table for one or two minutes at a time, two or three times a day.

Stay inverted only for as long as it is comfortable. This may be only a few seconds at first.

Increase the angle to which the inversion table can rotate, as it is comfortable. Adjust the index handle to

allow the inversion table to rotate until it comes in con- tact with the center frame.

Adjust the backrest frame so that the long adjustment knob is in the top hole (see SELECTING THE BACK- REST FRAME POSITION on page 13). If you weigh 220 Ibs. (100 kg) or more, adjust the long adjustment

knob to the center hole in the backrest frame. Rotate back and up as described on page 16.

Page 18

PART LISTmlVlodel No. 831.1 4895.1 ROG09A

Key No. Qty. Description Key No. Qty. Description

1 1 Left Base 37 2 Short Adjustment Knob

2 1 Right Base 38 1 Leg Frame Bushing 3 1 Center Base 39 2 42mm x 70mm Cap

4 1 Left Frame 40 2 63mm Round Cap 5 1 Right Frame 41 2 Leveling Foot

6 1 Center Frame Extension 42 3 Foot 7 1 Center Frame 43 3 M6 Nut

8 1 Backrest Frame 44 2 32mm Round Cap 9 1 Headrest Frame 45 4 Pad Cap

10 1 Leg Frame 46 1 M6 x 60mm Button Bolt 11 1 Lock Frame 47 2 Pivot Bushing 12 2 Handle 48 2 29mm Spacer 13 1 Long Adjustment Knob 49 2 M10 x 53mm Button Bolt

14 2 30mm x 70mm Inner Cap 50 12 M10 Curved Washer 15 1 Support Bracket 51 4 M10 x 85mm Button Bolt

16 1 25mm Square Inner Cap 52 10 M10 x 80mm Button Bolt 17 1 Spring 53 1 M10 x 95mm Button Bolt

18 1 Pad Tube 54 2 M10 x 16mm Button Screw 19 1 Foot Frame 55 4 M6 x 18mm Button Screw 20 1 Headrest 56 2 M6 x 60mm Button Screw 21 1 Backrest 57 1 M8 Locknut 22 4 Foam Pad 58 8 M4 x 15mm Screw

23 1 Top Cover 59 3 M4 x 20mm Screw 24 1 Bottom Cover 60 1 Right Large Spacer

25 1 Index Handle 61 1 M8 x 16mm Button Bolt 26 1 Index Ring 62 7 M6 Washer

27 1 Cup Washer 63 1 M4 x 30mm Screw 28 1 Small Spring 64 2 M10 Large Washer

29 1 Cup Bushing 65 22 M10 Locknut 30 1 Index Cup 66 1 M6 x 15mm Screw 31 1 Left Large Spacer 67 2 M5 x 15mm Screw 32 3 89mm Cap 68 1 30mm x 60mm Cap

33 1 M6 x 37mm Bolt 69 2 M10 x 40mm Button Bolt 34 1 M6 x 33mm Bolt * - User's Manual

35 1 Lock Pin * - Assembly Tool 36 1 Bumper * - Grease Packet

Note: Specifications are subject to change without notice. For information about ordering replacement parts, see the back cover of this manual. *These parts are not illustrated.

Page 19

EXPLODED DRAWINGmlVlodel No. 831.14895.1 RoGogA

d. 22 58 ,_68

',% ,,

13 58

62 56

,66

Page 20

ORDERING REPLACEMENT PARTS

To order replacement parts, please see the front cover of this manual. To help us assist you, be prepared to provide the following information when contacting us:

o the model number and serial number of the product (see the front cover of this manual)

o the name of the product (see the front cover of this manual)

o the key number and description of the replacement part(s) (see the PART LIST and the EXPLODED DRAWING

near the end of this manual)

LIMITED WARRANTY

iMPORTANT: You must register this product within 30 days of the purchase date to avoid added

fees for service needed under warranty. Go to www.nordJctrackservJce.com/registration.

ICON Health & Fitness, Inc. (ICON) warrants this product to be free from defects in workmanship and material, under normal use and service conditions. Parts and labor are warranted for ninety (90) days from

the date of purchase.

This warranty extends only to the original purchaser. ICON's obligation under this warranty is limited to

repairing or replacing, at ICON's option, the product through one of its authorized service centers. All repairs for which warranty claims are made must be preauthorized by ICON. If the product is shipped to

a service center, freight charges to and from the service center will be the customer's responsibility. For

replacement parts shipped while the product is under warranty, the customer will be responsible for a min- imal handling charge. For in-home service, the customer will be responsible for a minimal trip charge. This

warranty does not extend to any damage to a product caused by or attributable to freight damage, abuse,

misuse, improper or abnormal usage, or repairs not provided by an ICON authorized service center; to products used for commercial or rental purposes or as store display models; or to products transported

or purchased outside the US. No other warranty beyond that specifically set forth above is authorized by

ICON.

ICON is not responsible or liable for indirect, special, or consequential damages arising out of or in con- nection with the use or performance of the product; damages with respect to any economic loss, loss of

property, loss of revenues or profits, loss of enjoyment or use, or costs of removal or installation; or other consequential damages of whatsoever nature. Some states do not allow the exclusion or limitation of inci- dental or consequential damages. Accordingly, the above limitation may not apply to you.

The warranty extended hereunder is in lieu of any and all other warranties, and any implied warranties of

merchantability or fitness for a particular purpose are limited in their scope and duration to the terms set forth herein. Some states do not allow limitations on how long an implied warranty lasts. Accordingly, the above limitation may not apply to you.

This warranty gives you specific legal rights. You may also have other rights that vary from state to state.

iCON Health & Fitness, inc., 1500 S. 1000 W., Logan, UT 84321-9813