stellar labs 7630 User manual

Model 7630
Telescopic Crane
Owner’s Manual
Stellar Industries, Inc.
190 State Street
PO Box 169
Garner, IA 50438
800-321-3741
Fax: [phone]
www.stellarindustries.com
Subject to Change without Notication.
© 2018 Stellar Industries, Inc.
Rev 1
PN 90387
Installation • Assembly Drawings • Parts
Notice: A copy of this manual must remain with the equipment at all times.
For a printable download copy, please visit: www.stellarindustries.com
®
TM
Plus

Page ii | Stellar®7630 Telescopic Crane Owner’s Manual
Model 7630 Manual Revisions
Date of Revsion Section Revised Description of Revision
MODELNO.SERIAL NO.
DATE
MADE IN THE U.S.A. BY STELLAR INDUSTRIES, INC.
PNC5942
®
PATENTINFORMATION
http://www.stellarindustries.com/ip
MODEL NO.SERIAL NO.
DATE
MADE IN THE U.S.A. BY STELLAR INDUSTRIES, INC.
PN C5942
®
PATENT INFORMATION
http://www.stellarindustries.com/ip
Serial Tag
Location

Stellar®7630 Telescopic Crane Owner’s Manual | Page iii
Table of Contents
Introduction .........................................................................................................iv
Chapter 1 - Specications..................................................................................... 1
Model 7630 Specications .................................................................................1
Capacity Chart - Decal PN 71794 .....................................................................2
Dimensional Drawing 1 .......................................................................................3
Dimensional Drawing 2 .......................................................................................4
Chapter 2 - Installation .......................................................................................... 5
General Installation .............................................................................................5
Installer Notice ...................................................................................................5
Torque Data Chart ............................................................................................6
Installation Overview ........................................................................................7
Control Kit - PN 75063 ..........................................................................................8
Electrical Circuit Grounding ...............................................................................9
Hydraulic Kit - PN 72758 ....................................................................................10
Valve Bank - PN 52265 ......................................................................................11
Hydraulic Installation .........................................................................................12
Winch Case Drain Installation ..........................................................................13
Hydraulic System ...............................................................................................14
Face Seal/O-Ring Size Chart ............................................................................15
Stability Procedure ............................................................................................16
Crane Load Level Indicator .............................................................................17
Decal Placement - PN 71792 ...........................................................................18
Chapter 3 - Assembly Drawings ......................................................................... 19
Base Assembly - PN 50364 ................................................................................19
Gear Bearing - PN 47869 ..................................................................................20
Mast Assembly - PN 71597 ................................................................................21
Winch - PN 63517 ...............................................................................................22
Main Boom Assembly - PN 71598 .....................................................................23
Extension Boom Assembly - PN 75102 .............................................................24
Main Cylinder Assembly - PN 71461 ................................................................25
Extension Cylinder Assembly - PN 72463 .........................................................26
Snatch Block Assembly - PN 56266 ..................................................................27
Chapter 4 - Replacement Parts .......................................................................... 29

Page iv | Stellar®7630 Telescopic Crane Owner’s Manual
Introduction
A copy of this manual is provided with every crane and can be found in the hard plastic
manual case that is installed on the chassis. A copy of this manual shall remain with the
crane at all times.
Throughout the manual, three signal words will be used to bring attention to important
items:
A NOTICE signal word indicates a practice not related to physical injury.
A WARNING signal word indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
A DANGER signal word indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Information contained within this manual does not cover operation, maintenance, or
troubleshooting. Please refer to the General Light Duty Crane Manual for details on these
items.
This manual is not binding. Stellar Industries, Inc. reserves the right to change, at any
time, any or all of the items, components, and parts deemed necessary for product
improvement or commercial/production purposes. This right is kept with no requirement or
obligation for immediate mandatory updating of this manual.
In closing:
If more information is required or technical assistance is needed, or if you feel that any
part of this manual is unclear or incorrect, please contact the Stellar Customer Service
Department by phone at 800-321-3741 or email at [email protected].
WARNING
NOTICE
DANGER
For Technical Questions, Information, Parts, or Warranty, Call Toll-Free at
800-321-3741
Hours: Monday - Friday, 8:00 a.m. - 5:00 p.m. CST
Or email at the following addresses:
Technical Questions, and Information [email protected]
Order Parts [email protected]
Warranty Information [email protected]

Stellar®7630 Telescopic Crane Owner’s Manual | Page 1
Model 7630 Crane
Specifications Sheet
Page: 1 of
4
Crane
Rating*:
44,840
ft-lbs (6.2 TM)
Standard Boom Length:
13' 4" (4.06 m) from CL of Crane
Boom Extension:
Hydraulic 100" (254 cm)
Hydraulic 100" (254 cm)
Maximum
Horizontal
Reach:
30'
(9.14 m) from CL of Crane
Maximum
Vertical Lift:
31' 9" (9.68 m) from Crane Base
Stowed Height (Crane Only):
37.75" (95.5 cm)
Required Mounting Space:
20" x 21" (50.8 cm x 53.3 cm)
Approximate Crane Weight:
Controls:
Radio control standard for all functions.
Wire Rope:
3/8"
(0.95 cm)6X31 IWRC-DGXIP X 120' (36.58 m)
Boom Elevation:
-10º to +80º
Line Pull Speed:
60
ft/min (18.29 m/min)
Max. Single Part Line:
3,750 lbs (1,700 kg)
Max. Double Part Line:
7,500
lbs (3,400 kg)
Rotation (Worm Gear):
400º Power
Lifting Capacity**:
7,500 lbs @ 5'10" (3,400 kg @ 1.78 m)
1,490
lbs @ 30' (675 kg @ 9.14 m)
Power Supply:
2,100 lbs (953 kg)
7630 Standard
1st Stage:
2nd Stage:
PTO
& Pump:
8
gpm @ 3,000 psi
(30.3
lpm @ 207 bar)
Winch
Specifications
*Crane rating in Boost Mode. Normal crane rating is 38,000 ft-lbs (5.25 TM).
**Maximum capacities in Boost Mode.
Chapter 1 - Specications
Model 7630 Specications

Page 2 | Stellar®7630 Telescopic Crane Owner’s Manual
Model 7630 Crane
Specifications Sheet
Page: 2 of 4
Crane Rating*:
Standard Boom Length:
Boom Extension:
Maximum Horizontal Reach:
Maximum Vertical Lift:
Stowed Height (Crane Only):
Required Mounting Space:
Approximate Crane Weight:
Controls:
Wire Rope:
Boom Elevation:
Line Pull Speed:
Max. Single Part Line:
Max. Double Part Line:
Rotation (Worm Gear):
Lifting Capacity**:
Power Supply:
1st Stage:
2nd Stage:
Winch Specifications
0’
2.4 m1.8 m1.2 m0.6 m
2’ 4’ 6’ 8’
3.1 m
10’
3.7 m
12’
4.3 m
14’
4.9 m
16’
5.5 m
18’
6.1 m
20’
6.7 m
22’
7.3 m
24’
7.9 m
26’
8.5 m
28’
13’4”
4.06 m
21’8”
6.60 m
30’
9.14 m
-10º
80º
0º
15º
30º
45º
60º
2.4 m
1.8 m
6’
8’
3.1 m
10’
3.7 m
12’
4.3 m
14’
4.9 m
16’
5.5 m
18’
6.1 m
20’
6.7 m
22’
7.3 m
24’
7.9 m
26’
8.5 m
28’
9.8 m
32’
10.4 m
34’
9.1 m
30’
PN 71794 - Rev A
0'
7500 lbs
3400 kg
7500 lbs
3400 kg
5700 lbs
2585 kg
4030 lbs
1825 kg
3290 lbs
1490 kg
2850 lbs
1290 kg
1750 lbs
795 kg
1265 lbs
570 kg
2530 lbs
1145 kg
1790 lbs
810 kg
1460 lbs
660 kg
1310 lbs
590 kg
1815 lbs
825 kg
2020 lbs
920 kg
2475 lbs
1120 kg
3505 lbs
1590 kg
7290 lbs
3305 kg
7500 lbs
3400 kg
6725 lbs
3050 kg
4755 lbs
2155 kg
3880 lbs
1760 kg
3360 lbs
1525 kg
2890 lbs
1310 kg
3415 lbs
1550 kg
1780 lbs
810 kg
2100 lbs
950 kg
1285 lbs
580 kg
1515 lbs
690 kg
2065 lbs
935 kg
1490 lbs
675 kg
2140 lbs
970 kg
1545 lbs
700 kg
2385 lbs
1080 kg
1725 lbs
780 kg
2925 lbs
1325 kg
2110 lbs
955 kg
4135 lbs
1875 kg
2985 lbs
1355 kg
2950 lbs
1335 kg
3480 lbs
1575 kg
Weight of load handling devices are
part of the load lifted and must be
deducted from the capacity.
Maximum 1 - part line capacity is
3750 lbs (1700 kg). For greater
loads, use 2 - part line.
Boost
(If Equipped)
Standard
Capacity Chart - Decal PN 71794

Stellar®7630 Telescopic Crane Owner’s Manual | Page 3
Model 7630 Crane
Specifications Sheet
Page: 3 of 4
Crane Rating*:
Standard Boom Length:
Boom Extension:
Maximum Horizontal Reach:
Maximum Vertical Lift:
Stowed Height (Crane Only):
Required Mounting Space:
Approximate Crane Weight:
Controls:
Wire Rope:
Boom Elevation:
Line Pull Speed:
Max. Single Part Line:
Max. Double Part Line:
Rotation (Worm Gear):
Lifting Capacity**:
Power Supply:
1st Stage:
2nd Stage:
Winch Specifications
31'10"
9.70m
23'8"
7.21m
15'5"
4.70m
3'5"
1.04m
6'4"
1.93m
0.55m
1'10"
29'11"
9.12m
21'7"
6.58m
13'3"
4.04m
1.47m
4'10"
1'1"
0.33m
Dimensional Drawing 1

Page 4 | Stellar®7630 Telescopic Crane Owner’s Manual
Model 7630 Crane
Specifications Sheet
Page: 4 of 4
Crane Rating*:
Standard Boom Length:
Boom Extension:
Maximum Horizontal Reach:
Maximum Vertical Lift:
Stowed Height (Crane Only):
Required Mounting Space:
Approximate Crane Weight:
Controls:
Wire Rope:
Boom Elevation:
Line Pull Speed:
Max. Single Part Line:
Max. Double Part Line:
Rotation (Worm Gear):
Lifting Capacity**:
Power Supply:
1st Stage:
2nd Stage:
Winch Specifications
41.50in
1.05m
49.69in
1.26m
19.97in
0.51m
13'-3"
[ 4.03 m ]
22.57in
0.57m
CG
38.57in
0.98m
14'-11"
[ 4.54 m ]
12.18in
0.31m
Dimensional Drawing 2

Stellar®7630 Telescopic Crane Owner’s Manual | Page 5
Installer Notice
According to Federal Law (49 cfr part 571), each nal-stage manufacturer shall complete
the vehicle in such a manner that it conforms to the standards in effect on the date of
manufacture of the incomplete vehicle, the date of nal completion, or a date between
those two dates. This requirement shall, however, be superseded by any conicting
provisions of a standard that applies by its terms to vehicles manufactured in two or more
stages.
Therefore, the installer of Stellar®Cranes and Bodies is considered one of the manufacturers
of the vehicle. As such a manufacturer, the installer is responsible for compliance with all
applicable federal and state regulations. They are required to certify that the vehicle is in
compliance with the Federal Motor Vehicle Safety Standards and other regulations issued
under the National Trafc and Motor Vehicle Safety Act.
Please reference the Code of Federal Regulations, title 49 - Transportation, Volume 5 (400-
999), for further information, or visit http://www.gpoaccess.gov/nara/index.html for the full
text of Code of Federal Regulations.
Chapter 2 - Installation
General Installation
This chapter is designed to serve as a general guide for the installation of a Stellar 7630
Crane on a Stellar Service Body. Each installation is considered unique so certain portions
of this chapter may or may not apply to your direct application. If a question should arise
during the installation process, please contact Stellar Customer Service at [phone].
This crane is designed for use with a Stellar Service Body installed on a vehicle that meets
the minimum chassis requirements of the crane. It is the installer’s responsibility to assure
that the crane is mounted on a platform that will support the maximum crane rating of this
crane.
Do not install this crane on a body not capable of handling the loads
imposed on it. Failure to do so may result in serious injury or death.
When installing welder units to the service bodies, it is highly
recommended that a surge protector is installed on the chassis batteries to protect the
crane radio receiver, wiring and other electronic devices from an unexpected electrical
spike or surge. Failure to do so could result in extensive damage to the service body and
crane electrical circuit.
WARNING
NOTICE

Page 6 | Stellar®7630 Telescopic Crane Owner’s Manual
When using the torque data in the
chart, the following rules should be
observed:
• Bolt manufacturer’s particular
specications should be consulted
when provided.
• Flat washers of equal strength
must be used.
• All torque measurements are
given in foot-pounds. To convert
to inch-pounds, multiply by 12.
• Torque values specied are for
bolts with residual oils or no special
lubricants applied. If special
lubricants of high stress ability,
such as Never-Seez compound
graphite and oil, molybdenum
disulphite, colloidal copper or white lead are applied, multiply the torque values in the
charts by the factor .90. The use of Loctite does not affect the torque values listed above.
• Torque values for socket-head capscrews are the same as for Grade 8 capscrews.
• Do not use these values if a different torque value or tightening procedure is given for
a specic application. Torque values listed are for general use only. Check tightness of
fasteners periodically.
• Shear bolts are designed to fail under predetermined loads. Always replace shear bolts
with identical grade.
• Fasteners should be replaced with the same or higher grade. If higher grade fasteners
are used, these should only be tightened to the strength of the original.
• Tighten plastic insert or crimped steel-type lock nuts to approximately 110 percent of the
dry torque values shown in the chart below, applied to the nut, not to the bolt head.
Tighten toothed or serrated-type lock nuts to the full torque value. Note: “Lubricated”
means coated with a lubricant such as engine oil, or fasteners with phosphate and oil
coatings. “Dry” means plain or zinc plated without lubrication. Tighten lubricated bolts
to approximately 80% of dry bolts.
Size Bolt DIA Plain Plated Plain Plated Plated
(DIA-TPI) (Inches) (Ft-Lb) (Ft-Lb) (Ft-Lb) (Ft-Lb) (Ft-Lb)
5/16-18 0.3125 17 13 25 18 22
3/8-16 0.3750 31 23 44 33 39
7/16-14 0.4375 49 37 70 52 63
1/2-13 0.5000 75 57 105 80 96
9/16-12 0.5625 110 82 155 115 139
5/8-11 0.6250 150 115 220 160 192
3/4-10 0.7500 265 200 375 280 340
7/8-9 0.8750 395 295 605 455 549
1-8 1.000 590 445 910 680 823
1 1/8-7 1.1250 795 595 1290 965 1167
1 1/4-7 1.2500 1120 840 1815 1360 1646
1 3/8-6 1.3750 1470 1100 2380 1780 2158
1 1/2-6 1.500 1950 1460 3160 2370 2865
GRADE 5 GRADE 8 GRADE 9
Torque Data Chart

Stellar®7630 Telescopic Crane Owner’s Manual | Page 7
1. Determine that the mounting location for the 7630 is at least 18” x 20” (45.7 x 50.8 cm).
2. Use the detail below to drill 1.06” diameter holes into the mounting plate. Run tap on the
threads of the base to be sure they are clean.
3. Use a crane or lifting device capable of lifting the weight of the Stellar® Crane. The
7630 weighs approximately 2,050 lbs (930 kg). Note: Cranes are shipped with rotation
positioned at 200 degrees of 400 degree system. This will allow for easy installation of the
crane and permanent connection of all hydraulic and electrical components prior to
repositioning into the crane saddle.
4. Connect straps or chain from the lifting device to the lifting rings on the 7630.
5. Use four (4) 1” x 3” #8 bolts and four (4) #8 at washers.
6. Install a washer on each bolt.
7. Apply Loctite Thread locker #277 to the bolts.
8. Using the lifting device, lower the 7630 just above the crane compartment and start the
bolts. Have someone assist in leveling the crane. Note: the rotation motor should be to
the door side of crane compartment and the boom should be extended back over the
rear bumper.
9. Secure the crane using the mounting hardware provided. Note: longer or shorter cap
screws may be required – recommended thread engagement into crane base is 1.75” –
use grade 8, zinc plated cap screws only.
10. Torque the cap screws to 680 ft-lbs.
11. Remove supporting crane.
12. Hook-up hydraulics and electrical.
Installation Overview
2
1
FRONT
Motor
Hole Mounting Detail
Ø1.063
7.38
14.75
7.38
14.75
Ø6.00
4 Places
65382
ITEM NO. PART NO.
15199
QTY.
WASHER 1.00 SAE FLAT YELLOW GR8
CAP SCR 1.00X8X3.00 HHGR8 ZY
DESCRIPTION
4
4

Page 8 | Stellar®7630 Telescopic Crane Owner’s Manual
RECEIVER - RADIO (PART OF 1) RADIO CONTROLLER ASSEMBLY
TRANSMITTER - RADIO (PART OF 1)
INCLINOMETER
5
A2B
SWITCH
CORD REEL
POWER
CTRL OUTPUT
GROUND
ENG START
ENG STOP
CPRSR ON/OFF
SPEED CTRL
EXTENSION SENSOR
4
CHASSIS CAN BUSE LINK
CAN BUS
OPTION 1
DOCKING STATION RADIO TRANSMITTER
CTRL PWR JUMPER
3
INCLINOMETER 60 DEG PENNY AND GILE
S
SWITCH LIMIT E1161-B9111-6C
CORD REEL ASM 28/30 FT CRANE
SENSOR TAPE POSITION 6M CANOPE
N
TRANSDUCER PRESSURE 5000 PS
I
8
9
10
11
CABLE BACKUP CDTPLUS V2
E
FB
D
ECA
F A C D B
PD2
PD1
1 2 1 2 1 2 1 2
1 21 2
1 21 2 12
A
B
2
MAIN CYL MANIFOLD
PD1
PD2
BASE
ENDROD
END
7
21
12
OPTION 2
GROUND
IGN PWR SUPPLY
ROT
ROT
PROPORTIONAL
CW CCW
VALVE
MAIN
DOWN
EXT.
RETRACT
MAIN
UP
EXTEND
WINCH
DOWN
WINCH
UP
EXT
6
DOCKING STATION
#1 / BLK SUPPLY (-)
#2 / RED SUPPLY (+) 12V/24V #3 / GRN ALARM DISABLE GND INPUT
WHT OPTION OUTPUT
TRANSMITTER
RECEIVER
VCM
BA
TTERY RECHRG CDT PLUS (PART OF
1)
VALVEDRIVERCDTPLUSV2
WIREHRNSCRANECDTPLUSDTM
PN 75063
Control Kit - PN 75063
Any modication to the crane control system (electrical and/or hydraulic) must be approved by Stellar.
NOTICE

Stellar®7630 Telescopic Crane Owner’s Manual | Page 9
Electrical Circuit Grounding
When installing the crane, always locate a good source for grounding the circuit. A
majority of electrical failures are due to poor grounding. Poor grounding can cause
intermittent operation of the equipment, electrical component failures and cause the
equipment to not operate at all.
Chassis manufacturers usually will have a ground strap which ties into the truck frame
from the battery, but it is always a good idea to check each individual model to verify
where the ground is located. Never use the mechanic body as a ground source. Make
sure the electrical grounds are routed to either the chassis frame rail or the chassis’s main
grounding source.
Stellar provides a stud (PN 40992) for grounding the crane to the chassis frame rail:
• Drill the hole to the frame rail in accordance with the chassis body
builder’s guide.
•Hole size: 21/64”
• The hole location should allow for the shortest length of ground wire while keeping
enough slack for exibility.
• Be sure to grind the frame rail around the hole to ensure a proper ground connection.
• Frame rail thickness may require additional at washers (as shown).
• Use an electrical coating on hardware to prevent corrosion.
Inside Frame Rail Outside Frame Rail
WARNING

Page 10 | Stellar®7630 Telescopic Crane Owner’s Manual
NOTE: USE 12" OF HOSE PROTECTOR
P/N 17288 OVER THE 3 WINCH HOSES
NOTE: USE 32" OF HOSE PROTECTOR
P/N 17288 OVER THE ROTATION HOSES
PN 72758
Hydraulic Kit - PN 72758

Stellar®7630 Telescopic Crane Owner’s Manual | Page 11
HYDRAULIC SCHEMATIC
4
1
3
3
3
2
NOTE: PN's 24960 & 25371 DO NOT INCLUDE COIL PN 44532
4
44
44
44
4
3
EUQROTYTQNOITPIRCSEDTRAPMETI
125367 RELIEF VALVE 24685/24690 137 FT LBS
25368 SEAL KIT 25367
224960 VALVE FLW CTRL PRP/JP04C3150N 0-8120-22 FT LBS
25369 SEAL KIT 24960/25381
325371 VALVE SOLND 3 POS 4 WAY TAND G04571 425 FT LBS
25373SEAL KIT 25371/25372
444532 COIL 12VDC DUETS CH CAP012H 93FT LBS
PN 52265
Valve Bank - PN 52265

Page 12 | Stellar®7630 Telescopic Crane Owner’s Manual
1. After mounting, locate the pressure and return
lines. Note: Pressure line is 3/8” hose; Winch
Case Drain Line is 3/8” hose; Return line is 1/2”
hose. Hoses are terminated using swivel fittings.
2. Install hydraulic lines per diagram below. See
next page for Case Drain Installation. Note:
Stabilizer valve supplies oil to crane using the
Power Beyond feature.
3. Install hydraulic reservoir with return filter. Attach
pump pressure line to valve, return link to tank.
4. Fill system with hydraulic oil (See Stellar®
Lubrication Recommendations for fluid details).
(Blue)
Stabilizer Functions
Stabilizer Functions
Typical Stabilizer Valve
with Power Beyond Capabilities
Follow the instructions presented
on this page. Failure to follow
these instructions may result in
death or serious injury.
WARNING
Hydraulic Installation

Stellar®7630 Telescopic Crane Owner’s Manual | Page 13
Installing the winch case drain
1. The winch case drain must run directly to the reservoir to ensure no back pressure in the line.
2. Use 3/8” hydraulic hose and fittings rated for a minimum of 300 psi.
3.
4. Attach one end of the winch case drain to 3/8 swivel fitting located in step 3.
5. Route the winch case drain hose directly to the reservoir.
6. Connect the second end of the winch case drain to unshared fitting on the top of the reservoir as
shown in Fig 2.
Fig.1 Fig. 2
Locate the winch case drain line at the bottom of the crane base as shown in Fig. 1 (Blue Hose).
Note: Both the main pressure and winch case drane line use a 3/8” swivel fitting. Verify the winch
case drain is attached to the hose that is connected to the winch motor.
(Blue)
Follow the instructions presented
on this page. Failure to follow
these instructions may result in
death or serious injury.
WARNING
Winch Case Drain Installation

Page 14 | Stellar®7630 Telescopic Crane Owner’s Manual
Hydraulic System

Stellar®7630 Telescopic Crane Owner’s Manual | Page 15
Face Seal (A)
Stellar®PN
Hose
Size
Fitting
Size Stellar®PN
O-ring Boss (B)
#4 C2027 D1245
#6 C2028 D1246
#8 C2029 D1247
#10 32223 D1248
#12 D1244 D1249
#161”
3/4”
5/8”
1/2”
3/8”
1/4”
D1250
B
A
Face Seal/O-Ring Size Chart

Page 16 | Stellar®7630 Telescopic Crane Owner’s Manual
Denition of Stability for the Stellar Telescopic Crane Products:
A truck is stable until the load cannot be lifted off the ground with the winch, without
tipping over the truck. Every Stellar crane installed must be tested for stability to determine
the actual load capacity of the nal truck package. The actual test data must be
recorded and supplied with the truck at the time of in-service and should be kept with
the truck at all times. The following procedure will test the truck package for stability and
will provide a stability capacity chart. The load limit information shown on the stability
capacity chart is formulated on 85% tipping.
Set Up:
1. Locate the truck on a test course in position for loading and engage travel brakes.
2. Set stabilizers so that they make contact with rm, level footing.
3. Operate the crane under partial load to assure operator prociency and proper
machine function.
4. Put the radio into Stability Test Mode:
A. Push the middle four crane function switches up and hold until all lights come on
(approximately 5 seconds.)
B. At this point,the crane will have enough capacity to handle the weight for the
stability test.
C. The radio will timeout of stability mode after 30 minutes or when the E-Stop button
is pushed.
Note: The radio can only be put into stability mode five times. After that, the radio would
have to be returned to Stellar to be reprogrammed to allow additional stability testing. All
other radio functions will work properly even if stability mode is not available.
Stability Procedure