Cherry G83A User manual

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
1224 E. Warner Ave,
Santa Ana, Ca 92705
Tel: [phone]
Fax: [phone]
www.cherryaerospace.com
Original Instructions
G83A
Lockbolt Power Tool
M
A
N
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TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
2
Seller warrants the goods conform to applicable specifications and drawings and will be manufactured and inspected according to generally accepted practices of
companies manufacturing industrial or aerospace fasteners. In the event of any breach of the foregoing warranty, Buyer’s sole remedy shall be to return defective
goods (after receiving authorization from Seller) for replacement or refund of the purchase price, at the Seller’s option. Seller agrees to any freight costs in
connection with the return of any defective goods, but any costs relating to removal of the defective or nonconforming goods or installation of replacement goods
shall be Buyer’s responsibility. SELLER’S WARRANTY DOES NOT APPLY WHEN ANY PHYSICAL OR CHEMICAL CHANGE IN THE FORM OF THE
PRODUCT IS MADE BY BUYER.
THE FOREGOING EXPRESS WARRANTY AND REMEDY ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES AND
REMEDIES; ANY IMPLIED WARRANTY AS TO QUALITY, FITNESS FOR PURPOSE, OR MERCHANTABILITY IS HEREBY SPECIFICALLY
DISCLAIMED AND EXCLUDED BY SELLER. THIS WARRANTY IS VOID IF SELLER IS NOT NOTIFIED IN WRITING OF ANY REJECTION OF
THE GOODS WITHIN ONE (1) YEAR AFTER INITIAL USE BY BUYER OF ANY POWER RIVETER OR NINETY (90) DAYS AFTER INITIAL USE OF
ANY OTHER PRODUCT.
Seller shall not be liable under any circumstances for incidental, special or consequential damages arising in whole or in part from any breach by Seller, AND
SUCH INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES ARE HEREBY EXPRESSLY EXCLUDED.
LOCTITE
®
is a registered trademark of Henkel Corporation
DEXRON®is a registered trademark of GM corporation.
PARKER®is a trademark of Parker Hannifin Corporation
LUBRRIPLATE®is a trademark of Fiske Brothers Refining Co.
THE G83A TOOL
TABLE OF CONTENTS
Description ........................................................................................................................................................................................ 3
Specifications..................................................................................................................................................................................... 3
Safety Warnings ................................................................................................................................................................................ 3
Putting the tool in service .................................................................................................................................................................. 4
How to Use the G83A ....................................................................................................................................................................... 4
Maintenance and Repair ................................................................................................................................................................... 5
Fill and Bleed Instructions ................................................................................................................................................................. 5
Troubleshooting Guide....................................................................................................................................................................... 6
Service Procedure.............................................................................................................................................................................. 6
Air Valve ............................................................................................................................................................................. 7
Head Sub-Assembly ........................................................................................................................................................... 7
Handle Sub-Assembly ........................................................................................................................................................ 7
Cross Section Drawing ...................................................................................................................................................................... 8
Part List.............................................................................................................................................................................................. 9
Exploded View ................................................................................................................................................................................. 10
Pulling Heads .................................................................................................................................................................................. 11
Declaration of Conformity ..................................................................................................................................................Back Cover
For more information
p
lease contact our Technical Services De
p
artment at Tel. [phone]
WARRANTY

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
3
DESCRIPTION
The Cherry® G83A Lockbolt® riveter is a compact but powerful production tool designed for high productivity, reliable installation of
the most popular sizes of aircraft lockbolts and blind bolts.
This powerful tool has many ergonomic features: light weight
(4.95 Lbs. / 2.25 kg), low recoil and noise, a comfortable fit in
the operator’s hand.
SPECIFICATIONS FOR G83A
Cherry® Aerospace (CHERRY®) policy is one of continuous
development. Specifications shown in this document may be
subject to change which may be introduced after publication.
For the latest information always consult CHERRY®.
AIR PRESSURE 90 to 110 PSI (6.2 to 7.6 bar) .
STROKE 7/16 inch (11.1 mm)
PULLING FORCE 3,750 lbs. min @ 90 PSI
(16.7 kN min. @ 6.2 bar),
RETURN FORCE 800 lbs. min @ 90 PSI
(3.56 KN min. @ 6.2 bar).
CYCLE TIME Approximately one second
WEIGHT 4.95 lbs. (2.25 kg)
NOISE LEVEL 78.4 dB (A)
VIBRATION less than 2.5 m/s2
AIR CONSUMPTION 3.9 CFM (110.5 liters/M) at 20 Cycles/Minute
SAFETY WARNINGS
Do not use beyond the design intent; do not use substitute components for repair.
Operating this tool with a damaged or missing stem deflector, or using the deflector as a handle, may
result in severe personal injury. Rotate the pin deflector facing away from the operator
Wear proper PPE when operating, repairing, or overhauling this tool ( .)
Any modification will void warranty and shall be at the customer's entire responsibility.
Maintain the tool in a safe working condition at all times and examined at regular intervals for damage.
Before disassembling the tool for repair, refer to the maintenance instructions. All repairs shall be
undertaken only by personnel trained in Cherry installation tools.
Disconnect the air line from the tool inlet before servicing, adjusting, fitting or removing any accessory.
Ensure that the vent holes do not become blocked or clogged and the hoses are in good condition.
Wash thoroughly after handling the fluid; excessive contact could cause rashes.
Operating air pressure not to exceed 110 psi (7.6 bar); use of a pre-set regulator (P-1505) is
recommended
Do not operate the tool without the pulling head in place.
All retaining rings, screwed end caps, air fittings, trigger valves and pulling heads should be attached
securely and examined at the end of each working shift.
Do not pull rivet in the air or directed at any person.
Do not pound on the rear of the tool head to force rivets into holes as this will damage the tool.
Safety warnings must be explained all operators as part of training.

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
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Tools without an integral Air Pressure Regulator (P1505),
MUST be connected to a dedicated, regulated airline.
Tools with an integral Air
Pressure Regulator (P1505),
may be attached to any shop airline.
PUTTING THE TOOL IN SERVICE
The tool must be used with an air pressure regulator. Even if your shop air pressure is below the maximum
recommended range, pressure spikes in your airlines could cause serious damage to the tool or cause safety concerns.
HOW TO USE THE G83A
LOCKBOLT INSTALLATION
After selecting the proper pulling head, attach it securely to the riveter and connect the air-line to the tool.
For Lockbolts: Place the lockbolt pin into the workpiece and place the collar over the pintail.
While holding the back end of the lockbolt in place, push the pulling head onto the serrated area of the stem.
Caution: When using a non-self-releasing pulling head once the tool is placed onto the serrated end, it cannot be removed
unless going through the installation cycle which breaks the serrated end of the bolt.
The broken part (pintail) will eject through the rear of the riveter when using a straight pulling head and through the rear of the
active area of the tool for when using offset pulling heads.
If the tool does not release the swaged collar after installation, it can be adjusted by adding shims behind the pulling head collet.
Otherwise, the tool may need to be serviced.
BLIND BOLTS AND RIVETS
Insert the blind fastener into the prepared hole and place the tool onto the serrated stem.
Pull the trigger to activate the tool. Upon release of the trigger, the stem will eject to the rear of the riveter when using straight
pulling heads, and from the rear of the active area of the tool when using offset pulling head. Right angle pulling heads eject the
stems through the front.

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
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MAINTENANCE AND REPAIR
This riveter has been manufactured to give maximum service with minimum care. For optimum function:
1. The hydraulic system to be full of oil and free from air at all times.
2. Use clean and dry air to prevent premature wear and clogging of the air components.
3. Inspect the riveter for fluid leaks routinely
Use automatic transmission fluid (ATF) type “A” (no substitutes). Cherry® Aerospace recommends using, Dexron® III ATF.
PROPERTIES
FILL AND BLEED INSTRUCTIONS
Priming the tool- After service, the riveter needs to be primed with fluid.
What is needed: a 1/8” Allen Wrench; the 700A77 Bleed Bottle
Make sure that the power piston is lowered before priming (watch for fluid squirting from the
pressurized port).
Fill the handle subassembly with fluid almost to the gasket (about 1/8” below is also acceptable).
Place the Return Spring, Piston and Head Cylinder on the gasket and tighten the four cap screws
uniformly.
Bleed the air; make sure to do this operation until the tool has full stroke and no more air bubbles
are released into the bottle; you may need to help move the piston back in forth a few times before
the tool is fully primed.
Air Bleeding (air removal and fluid refill)
What is needed:, a 1/8” Allen Wrench; the 700A77 Bleed Bottle
Remove screw 19 and attach the bleed bottle bottom up (see picture).
Cycle several times, changing the position of the tool every few cycles; make sure the empty part of
the bleed bottle is always the highest part of the tool.
Stop the process if the tool has full piston stroke and there are no more air bubbles released in any tool position.
FIRE Suitable extinguishing media: CO2, dry powder, foam or water fog. DO NOT use water jets.
ENVIRONMENT
Waste Disposal: In accordance with local, state and federal regulations.
Spillage: Prevent entry into drains, sewers and water courses. Soak up with diatomaceous earth or other inert
material. Store the spent fluid in appropriate containers for disposal.
HANDLING
Eye protection required. Protective gloves recommended. Chemically resistant boots and apron recommended.
Use in well-ventilated area.
COMBUSTIBILITY
It is slightly combustible when heated above flash point. It will release flammable vapors which can burn in
open or be explosive in confined spaces if exposed to source of ignition.
STORAGE: Avoid storage near open flame or other sources of ignition.
FIRST AID
Skin: Wash thoroughly with soap and water as soon as possible. Casual contact requires no immediate
attention. If irritation develops, consult a physician.
Ingestion: Seek medical attention immediately. DO NOT INDUCE VOMITING.
Eyes: Flush with copious amounts of water. If irritation develops, consult a physician.
Inhalation: No significant adverse health effects are expected to occur on short term exposure. Remove from
contaminated area. Apply artificial respiration if needed. If unconscious, consult physician.
Specific gravity 0.863
Weight per gallon 7.18 lbs.
O
p
en flash
p
oin
t
>200°C
(
392°F
)

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
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836B700
Valve Spring Installation
Tool
TROUBLESHOOTING GUIDE
TOOL SERVICE
Tool must be serviced in case of malfunction, massive fluid loss or as part of your routine maintenance program.
REPLACEMENT PARTS: G83AKS – service kit (it contains Springs, Seals, O-Rings, Back-up Rings)
TOOLS NEEDED: G701/G704KT – tool kit (see pictures below), Needle Nose Pliers
837B700
Valve Sleeve Removal
Tool
700A61
Piston Rod
Wrench
700A60
Seal Guide
700A62
Power Cylinder Tool
700B65
Packing Plug Wrench
700A77
Air Bleede
r
No air supply is connected
Makesuretheriveterisconnectedtoanairsource
Faulty trigger (28)
Removeandreplacetriggerassembly.
Faulty power piston( 50-52)
ServicetheHandleSubassembly(25).
Valve Spring(34) not correctly
installed
ServicetheAirValve;makesuretheSprintis
snappedinproperly
Short piston stroke or
low pulling force Air inthe hydraulic system
Bleedperpage5
Damage inside the Head Cylinder
(1)
ServicetheHeadCylinder.
Clogged air muffler (44)
Remove,cleanthoroughlywithsolventandback‐
blowwithcompressedair
Leaks aroundthe gasket (23)
Tightenscrews(24)untilnomoreleaksare
observed;ifitstillleaks,thegasketandpressure
O‐Ring(22,23)mustbereplaced.
Leaks at the front or back of head
cylinder (1)
ServiceHeadCylinder(1).
Fluid Leakage at the side
hole of the handle Packing Plug and Seal (46 through 49) damage
ServiceHandle(25).
Broken or dislodged valve spring
(36)
Worn or damaged valve spool
seals
Slow / Sluggish cycle Muffler(44) or Spool (38) are
clogged up
Compression Spring (19) is
damaged or broken
Removeheadassembly(1),replacethespring(19).
Return Piston (20, 21) or its seals
are damaged or broken:
RemovetheHeadAssembly(1),replacethe
damagedcomponents.
ServiceAirValve;items(39,40)insideofthespool
andMufleritem43mayneedtobecleanedor
replaced
HeadPiston(64) does
not return, or it only
returns partially(short
stroke)
Piston (6) does not move
after depressing Trigger
Head piston (6) is slow
or it seizes
Fluid leakage at the Head
Cylinder (1)
Air leakage at the spool
valve (items 32 through
43)

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
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SERVICE PROCEDURE
Caution:
Maintenance and repair to be conducted only by trained personnel.
Prior to attempting any repair or maintenance work, make sure the air is disconnected.
Use special care handling sealing surfaces to avoid damage.
Replace all seals; before re-assembly, applyan O-ring lubricant (Parker®silicone lube or equivalent) on all O-rings
Apply a small amount of Loctite® 242 on the threaded components; curing time about 30 to 60 minutes.
After service, the riveter must be primed and the air bled (see page 5)
AIR VALVE SUB-ASSEMBLY
Disassembly Instructions:
Remove retaining ring (44) and muffler (43).
Pull out the valve plug (42) and spool subassembly (37) with the help of tool P1178;
If necessary, pull the valve sleeve (34) with l tool 837B700 after dislodging the spring (35) with a needle-nose pliers and pulling it out.
Assembly Instructions:
Reverse the above procedures. Use Install tool 836B700 to push spring (35) into its groove; if the spring is not snapped into its place
properly, the tool will not function.
HEAD SUB-ASSEMBLY
Disassembly:
Remove end cap (10); push the head piston (6) out carefully.
O-rings and back-up ring can be removed using a bent hook. Replace all seals.
Re-assembly:
Reverse the above directions, being very careful not to damage the seals during re-assembly; before re-attaching, fill the
handle with fluid to the top (see priming instructions on page 5).
HANDLE SUB-ASSEMBLY
Disassembly:
Remove the Head Cylinder (1) drain of fluid then remove the bottom covers (58 through 62); push the power piston down.
Unthread the locknut (57) with a 1/2" socket wrench and then remove the air piston (55) by using wrench 700B65; hold the
top of the piston with tool 700A61 to prevent from turning. Push piston out when completely unthreaded
Push the power piston (49) all the way up and remove packing plug (47) with the help of wrench 700B65.
Tap the power cylinder (53) from the top (use tool 700A62); when loosened, it will fall through the bottom.
Remove all the seals using a bent hook tool and inspect all components for wear. Replace all sealants and worn
components
Assembly:
The re-assembly sequence is the opposite of disassembly; to prevent damage to piston threads, the tightening torque for
the locknut (57) must be between 50 and 59 in.-lb. (5.65 and 6.67 N-m).

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
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CROSS SECTION

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
9
PART LIST
Model No: G83A
Qty Qty
HandleSub‐Assembly 1
2126 1
32 1
41281
51291
61301
7231 1
8132 1
9133 4
10 1 34 1
11 1 35 1
12 1 36 3
13 1 1
14 1 38 1
15 1 39 1
16 1 40 1
17 1 41 2
18 1 42 1
19 1 43 1
20 1 44 1
21 1 45 2
22 1 46 2
23 1 47 1
24 4 48 1
49 1
50 1
51 1
52 2
53 1
54 2
55 1
56 1
57 1
58 1
59 1
60 1
61 1
62 1
Description
SetScrew
251
DeflectorFitting
PintailDeflector
Stat‐O‐Seal
ButtonHeadScrew
ReturnCylinder
P735
700D107
P736
700B6
P730
P737
P653
700B73
700A67
P829
700‐212
P107
P108
P880
703A13
700‐266
700‐265
P932
700‐264
700‐211
P828
P113
P1373
P883
HeadCylinderSub‐Assembly
37
P834
700A16
700A17
700‐268
P428
P279
700A15
700D15‐2
700A18
700A69
ValveSpoolSub‐Assy
Spool
Mufler/Filte
r
MeteringScrew
O‐Ring
ValvePlug
Muffler
RetainingRing
PackingPlug
O‐Ring
PowerPiston
HighPressureO‐Ring
Back‐upRing
HighPressureO‐Ring
PowerCylinder
EndCap
O‐Ring
Back‐upRing
CircularSpring
700B93
P727
700‐24
8
P1505
Foroptimumoperationandsafety,
donotuseanysubstitutions.
Item P/N Description Item P/N
530A16
P572
P573
700‐204
BayonetteAdaptorAssy
O‐Ring
Back‐upRing
HeadCylinder
HeadPiston
Back‐upRing
O‐Ring
O‐Ring
HighPressureO‐Ring
Back‐upRing
TriggerSub‐Assy703A3327
Back‐upRing
AirPiston
QuadRing
LockNut
O‐Ring
HandleBase
O‐Ring
ValveSleeve
Spring
O‐Ring
703A11 Handle
AirPressureRegulator
530A38
703A32
P223
Trigger
TriggerSleeve
O‐ring
P838
P115
RetainingRing
BaseCover
RetainingRing
P725
700B4
P830
P739
P833
700‐247
P731
P27
CompressionSpring
O‐Ring
ReturnPiston
HighPressureO‐Ring
Gasket
CapScrew
P1367
P508
700‐267
P832
700‐230

TM-G83A Rev.: B DCR# 14-1093 DATE: 11/11/14 Federal Identification Code: 11815 © 2014 Cherry Aerospace
10
EXPLODED VIEW OF G83A