Ingersoll-Rand KX Series Setup guide

Product Maintenance
Information
Lever Chain Hoists
KX Series
(Dwg. MHP3275)
Save These Instructions
Form 48496376
Edition 1
September 2012
©2012 Ingersoll-Rand

OnlyallowIngersoll Rand trainedtechnicianstoperformmaintenanceonthisproduct.ForadditionalinformationcontactIngersollRand factoryornearest
Distributor.
For additional supporting documentation refer to Table 1 ‘Product Information Manuals’ on page 2.
Manuals can be downloaded from http://www.ingersollrandproducts.com.
The use of other than genuine Ingersoll Rand replacement parts may result in safety hazards, decreased performance and increased maintenance and will invalidate all
warranties.
Original instructions are in English. Other languages are a translation of the original instructions.
Refer all communications to the nearest Ingersoll Rand Office or Distributor.
Table 1: Product Information Manuals
Publication Part/DocumentNumber Publication Part/Document
Number
Product Safety Information Manual 48488993 Product Information Manual 48489025
Product Parts Information Manual 48489041
INSPECTION
Frequent inspections should be performed on equipment in regular service. Refer
to Product Information Manual.
nPeriodic Inspection
Refer to Table 2 ‘Inspection Classifications’ on page 2 for suggested inspection
classifications for Periodic Inspection Intervals. Select conditions most appropriate
to application.
Table 2: Inspection Classifications
Conditions Usage Load Characterization
Normal <=25% duty cycle Regular
Heavy >25% duty cycle Usually medium loads,
frequent maximum loads
Severe
Loads normally less than 50% of rated load with
running time up to continuous; or, Loads normally
above 50% of rated load with running time up to 50%
of work period.
Maintain written records of periodic inspections to provide an accumulative basis
for continuing evaluation. Inspect all items listed in ‘Frequent Inspection‘ in the
Product Information Manual. Also inspect the following at the suggested intervals
recommended in Table 5 ‘Periodic Maintenance/Inspection Interval’ on page 3.
1. Fasteners. Check rivets, capscrews, nuts, cotter pins and other fasteners on
hooks and hoist body. Replace if missing and tighten or secure if loose.
2. All Components. Inspect for wear, damage, distortion, deformation and
cleanliness. If external evidence indicates the need, disassemble. Check gears,
shafts, bearings, sheaves, chain guides, springs and covers. Replace worn or
damaged parts. Clean, lubricate and reassemble.
3. Hooks. Inspecthooksforcracks.Usemagneticparticleordyepenetranttocheck
for cracks. Inspect hook retaining parts. Tighten, repair or replace if necessary.
Refer to the latest edition of ASME B30.10 (Hooks) for additional hook inspection
information
4. LoadChainSprocket.Checkfordamageorexcessivewear.Replaceifnecessary.
Observe the action of load chain feeding through hoist. Do not operate a hoist
unless load chain feeds through hoist and hook block smoothly and without
audible clicking or other evidence of binding or malfunctioning
5. Brake. Ensure proper operation. Brake must hold hoist rated capacity. If load
test indicates the need, disassemble. Brake discs must be free of oil, any grease,
unglazed and uniform in thickness. Refer to “MAINTENANCE” section for
allowable brake disc wear. Check all other brake surfaces for wear, deformation
or foreign deposits. Inspect gear teeth, pawl and pawl spring for damage. Check
that brake pawl stops counterclockwise rotation of ratchet gear. Clean and
replace damaged components as necessary.
6. Supporting Structure. Check for distortion, wear and continued ability to
support hoist and rated load.
7. Labels and Tags. Check for presence and legibility. Replace if necessary.
8. End Anchor. Ensure both ends of load chain are securely attached. Secure if
loose, repair if damaged, replace if missing. Check chain stoppers are correctly
installed and functional.
9. Trolley (if equipped). Check that the trolley wheels track beam properly and
trolley is correctly adjusted in accordance with manufacturer’s literature. Check
that wheels and beam are not excessively worn and inspect side plates for
spreading due to bending. Do not operate hoist until problem has been
determined and corrected.
10. Load Chain. Check the chain for stretching. Measure the load chain over five
link sections all along chain, paying particular attention to the most frequently
reeved links. Refer to Dwg. MHP0455 on page 2, A. Gauge Length over 'N'
links with light load suspended from hook. When any five links in the working
lengthreachesor exceeds the discardlength,replace entire chain.Referto Table
3 ‘Load Chain Normal and Discard Length’ on page 2. Always use genuine
Ingersoll Rand replacement chain. Zinc plated load chain is standard on
Liftchain hoists.
Table 3: Load Chain Normal and Discard Length
Hoist
Capacity Chain Size Normal Length Discard Length
mm inches mm inches mm
0.25 ton 3.0 X 9.0 1.77 45 1.81 46.1
0.5 ton 4.0 X 12.0 2.36 60 2.42 61.5
0.75 ton 5.0 X 15.0 2.95 75 3.03 76.9
Gauge Length over ‘N’ links with
light load suspended from hook
A
(Dwg. MHP0455)
nMaintenance Schedule
Afterconsideringtheprevious section, regarding loading, it ispossibletodetermine
the necessary maintenance intervals. Given that the load spectrum has been
determined and the duration of use has been recorded, the following chart is
intended to be used to determine service intervals for major overhauls and unit gear
box lubrication. Accordingly, the following table is given:
Table 4: Service Intervals for Major Overhauls
Load Spectrum
(LF) Characterization Time Before Overhaul (hours) Check Oil Level (*) (hours)
L1 - Light
0 < LF < = 0.50
Hoist is usually
subject to very
small loads and in
exceptional cases
only to maximum
loads.
6300
400
L2 - Medium
(normal)
0.5 < LF < = 0.63
Hoist is usually
subject to small
loads but rather
often to maximum
loads.
3200
L3 - Heavy
0.63 < LF < = 0.80
Hoist is usually
subject to medium
loads but
frequently to
maximum loads.
1600
L4 - Heavy
0.80 < LF < = 1.00
Hoist is usually
subject to
maximum or
almost maximum
loads.
800
(*) Operation specifics may warrant modification to this interval.
nPeriodic Maintenance
While the information in the preceding section is used for major service intervals,
many items need to be checked at greater frequency depending on usage. The
following information is provided for that purpose, but it is important to note that
the information in the preceding section, regarding hours of service, is applicable in
all conditions of use. Refer to Table 5 ‘Periodic Maintenance/Inspection Interval’
on page 3.
2Form 48496376 Edition 1

Table 5: Periodic Maintenance/Inspection Interval
Item Conditions
Normal Heavy Severe
Requirements of frequent inspection Annually Semi-annually Quarterly
Evidence of loose bolts, nuts, rivets, snap
rings Annually Semi-annually Quarterly
Evidence of worn corroded, distorted, or
cracked parts such as load blocks,
suspension housing, levers, chain
attachments, clevises, yokes, suspension
bolts, shafts, gears, bearings, pins, rollers,
and locking and clamping devices
Annually Semi-annually Quarterly
Evidenceofdamagetohookretainingnuts
or collars or pins, and welds or rivets used
to secure the retaining members Annually Semi-annually Quarterly
Evidence of damage or excessive wear of
load sprockets, or idler sprocket. Annually Semi-annually Quarterly
Evidence of worn, glazed, or oil-
contaminated friction disc; worn pawl,
cams or ratchet; corroded, stretched, or
broken pawl springs in brake mechanism.
Annually Semi-annually Quarterly
Evidence of damage to supporting
structure, and/or trolley, if used. Annually Semi-annually Quarterly
Product and safety label for legibility Annually Semi-annually Quarterly
End connections of load chain, including
overtravel restraints Annually Semi-annually Quarterly
TROUBLESHOOTING
This section provides basic troubleshooting information. Determination of specific causes to problems are best identified by thorough inspections performed by
Ingersoll Rand trained technicians. The chart below provides a brief guide to common hoist and trolley symptoms, probable causes and remedies.
SYMPTOM CAUSE REMEDY
Load is not lifted Overload Reduce the load to nominal load
Selector in wrong position Choose correct position of selector
Load got stuck Set the load free again
Brake disc are worn Do maintenance and exchange the brake disc
Load chain is twisted Align the load chain
Defect of chain, gear or chain wheels Do maintenance and replace defective parts by original spare parts
Pawl does not engage properly Check the pawl and replace it if necessary
Pawl spring is missing Check the pawl and replace it if necessary
It is difficult to lift the load Overload Reduce the load to rated load
Dirty chains, gear or chain wheels Do maintenance, lubricate chains, gear and chain wheels
Defect of chain, gear or chain wheels Do maintenance and replace defective parts by original spare parts
Load is lifted with interruptions Pawl spring is missing or defective Do maintenance and replace defective parts by original spare parts
Hoist does not lift without load Brake spring is missing Do maintenance and replace defective parts by original spare parts
Hoist does not lift the whole distance long Hook stuck, chain is twisted Place hooks and chains in correct position
The brake remains closed (stuck) the hoist was unloaded without lowering the
load Suspend the load again, lower the load, unload the hoist
The load hook was pulled against the housing
and got stuck there Release the hook, suspend the load again, lower the load, unload the hoist
Hoist does not lower the load Brake too tight Pull down hard (possibly with 2 people) on the hand chain to loosen brake
Brake without function due to rust Effect periodic inspection and replace rusty parts.
Load slips down partially during lowering Foreign-object between the brake discs Remove the foreign-object, clean the surface (Do not lubricate)
Load slips down during lowering Brake discs are missing, installed incorrectly or
worn Replace the brake discs. Or install it correctly
Selector does not function Defect or deformation Check and replace, if necessary
Load slips down when the selector is
switched to free-wheeling mechanism Chain spring is missing or defective. Do maintenance and replace defective parts by original spare parts
Load hook latch does not work Latch broken Replace hook latch
Load hook bent or twisted Inspect load hook as described in "INSPECTION" section. Replace if necessary
Form 48496376 Edition 1 3

INSPECTION REPORT
Ingersoll Rand Lever Chain Hoist
Model Number: Date:
Serial Number: Inspected by:
Reason for Inspection: (Check Applicable Box)
1. Scheduled Periodic Inspection ( ___ Quarterly ___ Semiannually ___ Yearly)
Operating Environment:
Normal ___ Heavy ___ Severe ___
2. Discrepancy(s) noted during Frequent Inspection
3. Discrepancy(s) noted during maintenance
4. Other: ___________________________
Refer to the Product Information and Parts Information Manual and “INSPECTION” section for the general inspection criteria. Also, refer to appropriate National Standards
and Codes of Practice. If in doubt about an existing condition, contact the nearest Ingersoll Rand distributor or the factory for technical assistance.
COMPONENT CONDITION CORRECTIVE ACTION NOTES
Pass Fail Repair Replace
Fasteners
Gears
Shafts
Bearings ---
Load Bearing Wheel
Hook Block/Double-Reeved Pocket
Wheel
Chain Guides
Springs ---
Covers, Housings
Hooks ---
Top
Actual Hook Throat Width: ________ inches / ________ mm
(Refer to Table 3 ‘Load Chain Normal and Discard Length’ on page 2 for minimum/maximum acceptable widths.)
Hook Twist --- (maximum 10%)
Hook Crack Test Method Used: Dye Penetrant ________ Magnetic Particle ________ Other: ________
Bottom
Actual Hook Throat Width: ________ inches / ________ mm
(Refer to Table 3 ‘Load Chain Normal and Discard Length’ on page 2 for minimum/maximum acceptable widths.)
Hook Twist --- (maximum 10%)
Hook Crack Test Method Used: Dye Penetrant ________ Magnetic Particle ________ Other: ________
Hook Latch ---
Brake (100% Load Test) ---
Brake (Visual Inspection)
Tail Pin (End Anchor)
Load Chain: ---
Working length(s) maximum wear: ________ inches / ________ mm
(Refer to Table 3 ‘Load Chain Normal and Discard Length’ on page 2.)
Supporting Structure
Labels and Tags ---
Other Components (List in NOTES
section)
Testing: Pass Fail NOTES
Operational (No Load)
Operational (100% Load)
Operational (Maximum Test Load*)
* Maximum test load should never exceed 125% of rated capacity.
This form may be photocopied and used as an inspection record.
4 Form 48496376 Edition 1

MAINTENANCE
•Never perform maintenance on the hoist while it is supporting a load.
Before performing maintenance, tag controls:
WARNING - DO NOT OPERATE EQUIPMENT BEING REPAIRED.
•Only allow personnel instructed in service and repair of this hoist to
perform maintenance.
•After performing any maintenance on the hoist, dynamically test hoist to
100% of its rated capacity, in accordance with ASME B30.16 standards,
before returning hoist to service. Testing to more than 100% of rated
capacity may be required to comply with standards and regulations set
forth in areas outside of the USA.
•Use of other than genuine Ingersoll Rand replacement parts may result in
safety hazards, decreased performance and increased maintenance and
may invalidate all warranties.
nGeneral
Correct disassembly (to prevent loss or damage of good parts), repair, assembly,
testing and adjusting are critical to proper product operation. Maintenance
procedures are technical in nature and require training and experience to
accomplish correctly. In addition, repair and testing require specialized equipment
that is not typically found at the hoist-mounting site. Proper use, inspections and
maintenance increase the life and usefulness of your Ingersoll Rand equipment.
During assembly, lubricate gears, nuts, capscrews and all machined threads with
applicable lubricants. Use of antiseize compound and/or thread lubricant on
capscrewandnutthreadedareas preventscorrosionandallowsforeasydisassembly
ofcomponents.It is extremely importantthatanyone involved withmaintainingthe
hoist be familiar with the servicing procedures of these products, and be physically
capableof conductingtheprocedures.Thesepersonnelshallhave skillsthat include:
1. Proper and safe use and application of mechanics’ common hand tools as well
as special Ingersoll Rand or recommended tools.
2. Safety procedures, precautions and work habits established by accepted
industry standards.
Ingersoll Rand cannot know of, or provide all the procedures by which product
operations or repairs may be conducted and the hazards and/or results of each
method. If operation or maintenance procedures not specifically recommended by
the manufacturer are conducted, it must be ensured that product safety is not
endangered by the actions taken. If unsure of an operation or maintenance
procedure or step, personnel should place the product in a safe condition and
contact supervisors and/or the factory for technical assistance.
nMaintenance Intervals
Refer to Table 5 ‘Periodic Maintenance/Inspection Interval’ on page 3 for
recommended maintenance schedule.
nLoad Chain Replacement
WARNING
•Topreventafallingload,whichcancausedeath,injuryorpropertydamage,
the hook must be on left fall of load chain and right fall must be attached
to hoist body with anchor pin and anchor hanger. Right and left
designations are as viewed from the hand chain side of the hoist.
NOTICE
• For ease of installation, do not remove old chain from hoist. Use the old
chain to feed new chain through hoist.
1. Remove the chain stopper (42).
2. Remove nut & load pin (28) and remove bottom hook assembly (29).
3. Remove load hook.
4. Using an abrasive wheel, cut a section from the last link as shown in Dwg.
MHP0817 on page 5, A. ‘A‘ dimension; B. ‘C‘ Link. Use a ‘C‘ link which is the
same size as the chain. Refer to Table 6 ‘‘C‘ Link Dimension’ on page 5.
A
B
‘C’ Link
‘A’ Dimension
(Dwg. MHP0817)
Table 6: ‘C‘ Link Dimension
Hoist Capacity Chain Size ‘A‘ Dimension
mm in. mm
0.25 ton 3.0 X 9.0 0.197 5.0
0.5 ton 4.0 X 12.0 0.236 6.0
0.75 ton 5.0 X 15.0 0.276 7.0
CAUTION
•Do not distort link in any manner. Link must be able to pass over the chain
sprocket and idler wheels without binding.
5. Connect new chain to old chain by hooking end of new chain onto ‘C‘ link. The
last link of the chain must be in the same direction as the first, if not, cut off the
last link. The end link must be a standing link (perpendicular to the axle of hoist
sprockets). Make certain welds and links on new chain match positioning of
welds and links on chain being replaced
6. Slowly run hoist in lower direction, running off old chain and reeving new chain
over the chain wheel. The first link of new chain over the chain wheel must
be a standing link. Refer to Dwg. MHP0472 on page 5.
Chain
Wheel
Chain Weld
To Outside On
Powered Chain
Wheels
Standing
Link
Load Chain
A
D
B
C
(Dwg. MHP0472)
Illustrations may not be a true representation of actual pocket wheel. Use for
instructions only.
7. Reinstall Bottom hook assembly to load side of chain. Reinstall chain stopper to
free end of chain.
nDetermining Twisted, Kinked or ‘Capsized‘ Load Chain
Ensure chain is not twisted, kinked or ‘capsized‘ during installation. Refer to Dwg.
MHP0020 on page 5, A. Appearance of Chain Not Twisted; B. Appearance of Chain
Twisted.
A
Appearance of
Chain Not Twisted
Appearance of
Chain Twisted
B
(Dwg. MHP0020)
nChain Reeving
WARNING
• Ensure chain does NOT become twisted during reeving. All chain welds
must align while chain is hanging free.
Refer to Dwg. MHP3276 on page 6 for single reeve.
Form 48496376 Edition 1 5

1
2
(Dwg. MHP3276)
nDisassembly
nGeneral Disassembly Instructions
The following instructions provide necessary information to disassemble, inspect,
repair, and reassemble product. Parts drawings are provided in Product Parts
Information Manual unless otherwise noted.
Ifproduct isbeingcompletelydisassembledforanyreason,followtheorderof topics
as they are presented. It is recommended that all maintenance work on the product
be performed in a clean dust free work area.
In the process of disassembling the product, observe the following:
1. Never disassemble product any further than is necessary to accomplish needed
repair. A good part can be damaged during the course of disassembly.
2. Never use excessive force when removing parts. Tapping gently around
perimeter of a cover or housing with a soft hammer, for example, is sufficient to
break the seal.
3. Do not heat a part with a flame to free it for removal unless part being heated is
already worn or damaged beyond repair and no additional damage will occur
to other parts. In general, product is designed to permit easy disassembly and
reassembly. The use of heat or excessive force should not be required.
4. Keep work area as clean as practical, to prevent dirt and other foreign matter
from getting into bearings or other moving parts.
5. When grasping a part in a vise, always use leather-covered or copper-covered
vise jaws to protect the surface of the part and help prevent distortion. This is
particularly true of threaded members, machined surfaces and housings.
6. Do not remove any part that is a press fit in or on a subassembly unless removal
of that part is necessary for repairs or replacement.
nFree Chain Knob Disassembly
1. Remove retainer ring (1).
2. Pull out free knob (2) and remove stop knob (3).
nLever Disassembly
1. Remove snap ring II (5) from brake plate (11).
2. Remove lever handle assembly (6).
3. Remove snap ring III (47) from selector pin (46) and knock off the selector pin
(46) from lever handle (45).
4. Take the roller (43) and change over spring (44) out of lever handle (45).
5. Screw off lock & nut (7) from lever handle (45).
6. Pull grip (8) off from lever handle (45).
nBrake End Disassembly
1. Remove snap ring I (4) (only for 0.25 ton hoist).
2. Remove change over gear (9) and bushing (10) from brake plate (11).
3. Remove screw & washer (12) from lever cover (13).
4. Remove lever cover (13).
5. Secureloadsheave topreventrotation andunscrewbrake plate(11) from pinion
shaft (35).
6. Remove free spring (14), brake disc (15), ratchet disc (16), brake disc (15) and
brake hub (17).
7. Remove snap ring IV (18), pawl (19) and pawl spring (20).
nGear End Disassembly
1. Remove gear case (38).
2. Take out reinforced plate (37) from gear case (38).
3. Remove disc gear A (36) and disc gear B (50).
4. Remove pinion shaft (35) and load gear (27) (only for 0.5 ton and 0.75 ton hoists).
nLoad Sheave Disassembly
1. Remove pin (24) (only for 0.5 ton and 0.75 ton hoists).
2. Remove top pin (33) and top hook assembly (22).
3. Remove side plate B (34).
4. Remove load chain guide (31), chain stripper (30) and stay bolt (32).
5. Remove load chain (41) and load sheave (26) or load sheave assembly (25) (only
for 0.25 ton hoist).
nCleaning, Inspection and Repair
Use the following procedures to clean, inspect, and repair the components of the
hoist system.
nCleaning
CAUTION
• Bearings that are loose, worn or rotate in the housing must be replaced.
Failure to observe this precaution will result in additional component
damage.
Clean all hoist component parts in an acid free solvent (except for the brake disc).
The use of a stiff bristle brush will facilitate the removal of accumulated dirt and
sediments on the gears and frames. Dry each part using low pressure, filtered
compressed air.
nInspection
All disassembled parts should be inspected to determine their fitness for continued
use. Pay particular attention to the following:
1. Inspect all gears for worn, cracked, or broken teeth.
2. Inspect shafts for ridges caused by wear. If ridges caused by wear are apparent
on shafts, replace the shaft.
3. Inspect all threaded items and replace those having damaged threads.
4. Measure the thickness of the brake discs. If brake discs do not have uniform
thickness or are less than the discard dimension shown in Table 7 ‘Brake Disc
Chart’ on page 6, replace brake discs.
Table 7: Brake Disc Chart
Hoist Model Normal Discard
inches mm inches mm
KX025 0.12 3 0.10 2.5
KX050 0.10 2.5 0.08 2.0
KX075 0.10 2.5 0.08 2.0
5. Inspect ratchet pawls and springs on side plate assembly. Replace parts if pawls
and or springs are damaged or fail to operate.
nRepair
Actual repairs are limited to the removal of small burrs and other minor surface
imperfections from gears and shafts. Use a fine stone or emery cloth for this work.
Do not use steel wool.
1. Worn or damaged parts must be replaced. Refer to the applicable Parts List
Manual for specific replacement parts information.
2. Inspect all remaining parts for evidence of damage. Replace or repair any part
which is in questionable condition. The cost of the part is often minor in
comparison with the cost of redoing the job.
3. Smooth out all nicks, burrs, or galled spots on shafts, bores, pins, and bushings.
4. Examine all gear teeth carefully, and remove nicks and burrs.
5. Polish the edges of all shaft shoulders to remove small nicks which may have
been caused during handling.
6. Remove all nicks and burrs caused by lockwashers.
nAssembly
nLoad Sheave and Gear End Assembly
1. Applygreaseto load sheave (26)orload sheave assembly(25).For 0.25 ton hoist,
Install load sheave assembly (25) into side plate B (34). For 0.5 ton and 0.75 ton
hoists, Install load sheave (26) into side plate B (34), and then install load gear
(27) onto load sheave (26).
6Form 48496376 Edition 1

2. Apply grease to pinion shaft (35), disc gear A (36) and disc gear B (50). Insert
pinion shaft (35) from side plate B (34) side through load sheave (26) or load
sheave assembly (25). And then install disc gear A (36) and disc gear B (50).
3. Apply grease to reinforced plate (37) and put it into gear case (38).
4. Cover the gear end with gear case (38).
5. Turn over the hoist, install stay bolt (32), chain stripper (30) and load chain guide
(31) onto side plate (34) in order.
6. Install side plate A assembly (21).
7. Installpawlspring (20),pawl(19) andsnapring IV(18)onto sideplateA assembly
(21).
8. Insert pin (24) (only for 0.5 ton and 0.75 ton hoists). Put top hook assembly (22)
between side plate B (34) and side plate A assembly (21), and then insert top pin
(33).
nLever Assembly
1. Put change over spring (44) into lever handle (45).
2. Install roller (43) and selector (48), secure them with selector pin (46) and snap
ring (47).
3. Install grip (8) onto lever handle (45) and secure it with lock & nut (7).
nBrake End Assembly
Follow steps 1 through 8 described in `Load Sheave and Gear End Assembly', and
steps 1 through 3 described in `Lever Assembly'.
1. Install brake hub (17) onto pinion shaft (35).
2. Install brake disc (15), ratchet disc (16) and brake disc (15) onto brake hub (17).
3. Install lever cover (13), and secure it with washer & screw (12).
4. Install the free spring (14) onto brake hub (17), make sure the big end of free
spring is out.
5. Install bushing (10), change over gear (9), lever handle assembly (6) and snap
ring II (5) in order onto brake plate (11).
nFree Chain Knob Assembly
Follow steps described in `Load Sheave and Gear End Assembly', `Lever Assembly',
`Brake end Assembly'.
1. Install snap ring I (4) (only for 0.25 ton hoist).
2. Install stop knob (3) and free knob (2)
3. Secure the free knob (2) with retainer ring (1).
nLoad Test
Prior to initial use, all new, extensively repaired, or altered hoists shall be load tested
by or under the direction of a person trained in the operation and maintenance of
thishoist,and a writtenreportfurnished confirming theratingof the hoist.Testhoist
to 125% of the rated hoist capacity. Testing to more than 125% will be required to
set overload clutch and may be necessary to comply with standards and regulations
set forth in areas outside of the USA.
Form 48496376 Edition 1 7

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