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1. THE UTILITY of TMC RECOMMENDED MAINTENANCE AND ENGINEERING PRACTICES TECHNICAL SESSION #1
February 9, 2011
2. Attention Please In accordance with TMC Board Policy, all portable phones and pagers without a silent feature must be turned off during business sessions.
If you must use your phone please leave the room!
3. Attention Please This is an open meeting of the Technology & Maintenance Council.
Audio or video recordings are not permitted at this session. However, photography is permissible.
The opinions expressed in this meeting are those of the individual and not necessarily the opinion of his/her company nor of TMC unless stated otherwise.
4. Constructive Comments Are Always Appreciated! TMC welcomes your comments, but please make certain that they are constructive and appropriate before you turn in your evaluation sheet!
Thank You for Your Cooperation!
5. Senior Manager of New Product Development, Ryder
Responsible for vehicle research and development, vehicle specifications, new vehicle quality
Offers technical assistance to the sales staff regarding vehicle specifications
Graduated from Georgia Tech with a Bachelors Degree in Mechanical Engineering
He has been a TMC member for 29 years and is currently TMC General Chairman and Treasurer
Past Chairman of ATAs Technical Advisory Group
He has been a member of the Society of Automotive Engineers (SAE) since 1978 Jerry Thrift
6. Maintenance Specialist Power Vehicles, Air Products & Chemicals Inc
45 Years in Vehicle Maintenance (33 Years with Air Products)
Worked part time as an Engine Tuner on the NASCAR Circuit, 18 years
Graduated Spring Garden Institute 1967
Certified ATA National Committee Motor Fleet Supervisor
Professional Affiliations
Past President Lehigh Valley Fleet Maintenance Association
Member of the Technical advisory board for Lehigh Career & Technical School (The largest technical school in United States)
Member of Society of Automotive Engineers 22 years
Active in TMC for 18 years
Past Task Force chairmen of S-3 (Engines)
Pass Chairmen of Technical Advisory Group of ATA Engineering
Technical Advisor for the Skills USA National Committee
Coordinator for district 11 PA Skills USA Competition
Honors
Recipient of 2009 CCJ Career Leadership Award
TMC (Peggy Fisher) Study Group Leadership award 2010
Recipient of the Sliver Spark Plug award Ronald Szapacs
7. VP of Maintenance, P.A.M. Transportation Services, Inc
30 years experience in transportation maintenance
15 in the commercial leasing business
15 with a for hire truckload carrier
He served 3˝ years in the U.S. Army on a Mobile Maintenance Contact Team in South East Asia
After completing an Electronics degree he went to work as a truck technician because electronics jobs were scarce
Credentials
ASE Certified Master Heavy Duty Truck Technician
North American Transportation Management Institute (NATMI) Certified Director of Maintenance/Equipment
American Trucking Associations (ATA) Technology and Maintenance Council (TMC) Silver Spark Plug recipient
Serves on the ATAs Technical Advisory Group TAG Committee Carl P. Tapp, CDM/E
8. Jerry ThriftManager New Product Development Ryder
9. Ryder Fleet 170,000 vehicles
4,500 technicians
800 shop locations
Operations in Canada, US and Mexico
10. The RP and Spec Initiative
11. Recommended Practices Revisited RPs come in two forms:
Recommended Maintenance Practices (RMP)
Recommended Engineering Practices (REP)
RMPs are developed to improve the maintenance of vehicles already on the ground
REPs are developed to help designers and engineers improve the maintenance of vehicles to-be-built
Both types can be used to spec new vehicles
12. RPs and New Vehicle Specifications RMPs and REPs can be used to supplement a fleets new vehicle specifications
Such practice is concise while also offering greater specification detail
Takes advantage of TMCs extensive knowledge-base to improve your specs
13. Which RPs Improve New Vehicle Specifications? Since all RPs are not applicable to new vehicle specifications, each Study Group Chairman was asked to review their respective RPs and identify those RPs that are applicable to new vehicle specifications
14. RPs That Improve the New Vehicle Specification Process S.1 Electrical & Instruments
RPs 105C, 114B, 125A, 127B, 129A, 137C, 141, 145, 146, 147, 152, 153, 154, 159, 160 and 163
RP 105C Battery Cable Assemblies
RP 114B Wiring Harness Protection
15. RPs That Improve the New Vehicle Specification Process S.2 Tire & Wheel
RPs 205B and 214C
RP 205B Tire Bead Lubricants
RP 214C Tire/Wheel End Balance and Run-Out
16. RPs That Improve the New Vehicle Specification Process S.3 Engines
RPs 311A, 316A, 317A, 321, 327, 330, 332B, 334A, 338A, 340, 348, 349, 354, 355, 356 and 357
RP 317 Fuel/Water Separating Devices
RP 332B Guidelines for Hoses, Clamps
17. RPs That Improve the New Vehicle Specification Process S.4 Cab and Controls
RPs 404B, 406B, 407, 408, 414A, 417, 420A 422 and 423
RP 408 Heater and/or AC Blower Motor Accessibility
RP 423 Color Coding of Air Brake Systems
18. RPs That Improve the New Vehicle Specification Process S.5 Fleet Maintenance Management
None applicable
19. RPs That Improve the New Vehicle Specification Process S.6 Chassis & Brake Systems
RPs 602B, 603C, 604B, 608A, 610A, 612B, 614, 615, 616, 621, 624A, 632, 635, 636, 637, 639, 640A, 650, 654, 659, 660 and 661
RP 602B Recovery Attachment Points
RP 612B Pneumatic Brake Balance
20. RPs That Improve the New Vehicle Specification Process S.7 Trailer, Bodies and Material Handling
RPs 711, 723A, 727, 729, 738 and 741
RP 727 Liftgate Specifications and Installation
RP 729 Trailer Fastener Specifications
21. RPs That Improve the New Vehicle Specification Process S.11 Energy Conservation
RPs 1107 and 1112
RP 1107 Specifying Drivetrains
RP 1112 Lightweight Components Effect Fuel Economy
22. RPs That Improve the New Vehicle Specification Process S.12 On-Board Vehicle Electronics
RPs 1201, 1202B, 1206 and 1207
RP 1201 Joint TMC/SAE RP for Serial Data Communication
RP 1202B Off-Board Diagnostics Standards
23. RPs That Improve the New Vehicle Specification Process S.14 Light and Medium-Duty Trucks
RPs 1402, 1409, 1411, 1412 and 1413
RP 1402 Tire Selection for Commercial Light Tires
RP 1409 Light and Medium Duty Automatic Operation, Design and Specifications
24. RPs That Improve the New Vehicle Specification Process S.15 Specialty Vehicles
RPs 1502, 1504 and 1505
RP 1502 Specing Guidelines for Hydraulic System
.
RP1505 Torque Rod Selection and Installation
.
25. To Summarize: All RPs that improve the new vehicle specification process have been identified and will be consolidated into one place
A fleet can review these RPs to determine which are applicable to their fleet
26. Jerry ThriftPhone: 305.500.4629email: jerry_thrift@ryder.com
27. Ronald SzapacsMaintenance Specialist Power VehiclesAir Products & Chemicals Inc.
28. Air Products Fleet 3,000 Vehicles in Fleet
600 Class 8 Tractors
800 Class 4, 5, 6,and 7s
1,800 Trailers
65 Million Miles Annually
38 Shop Locations
29. Why List Recommend Practices Reduce the length of specification
Spells out all details to conform to FMVSS, DOT and FMCSR regulations
List detailed drawings showing various requirements
30. Why List Recommend Practices List Performance Requirements
Cab Heater & Defroster RP 407
Cab Insulation RP 422A
Windshield Wiper Systems RP 406B
31. Why List Recommend Practices RP 404B Truck Ingress and Egress Standards
RP 417 Supporting Air and Electrical Lines Between Tractor & Trailer
RP 603 C Fifth Wheel Mounting
32. Reducing the Length of Spec Cranking circuit to be full copper wire, circuit to be complete from battery to cranking motor to conform with
TMC (RP105C)
36. RP 349 ECM Harness & Connectors
References 9 SAE Standards
37. Who Develops RPs Engineers from Many Product Suppliers
Sales People
End Users ( Fleets)
38. Joint Committee RPs Many TMC RPs were written by joint committees
Engine Manufactures Association
Truck Trailer Manufacturer Association
Society of Automotive Engineers
39. Thank You For Your Time and Attention
40. Carl P. Tapp, CDM/EVP of MaintenanceP.A.M. Transportation Services
41. The P.A.M. Fleet 1,750 Over-the-Road Tractors
100 Day Cab Tractors
27 CNG Tractors
40 Yard Jockeys
4,500 Trailers Dry, Drop Frame, Reefer
2 Over-the-Road Transfer Wreckers
10 Maintenance Shops and 1 Body Shop
200 Million Miles Annually A LITTLE ABOUT PAM
WE OPERATE 1750 OVER THE ROAD TRACTORS,
100 REGIONAL DAY CABS,
27 COMPRESSED NATURAL GAS TRACTORS,
40 YARD JOCKEYS,
4500 TRAILERS PREDOMINANTLY DRY VAN WITH AUTOMOTIVE DROP FRAME VANS AND 50 REEFERS
AND TWO OTR TRANSFER WRECKERS
OUT OF 10 MAINTENANCE SHOPS AND A FULL SCALE BODY SHOPA LITTLE ABOUT PAM
WE OPERATE 1750 OVER THE ROAD TRACTORS,
100 REGIONAL DAY CABS,
27 COMPRESSED NATURAL GAS TRACTORS,
40 YARD JOCKEYS,
4500 TRAILERS PREDOMINANTLY DRY VAN WITH AUTOMOTIVE DROP FRAME VANS AND 50 REEFERS
AND TWO OTR TRANSFER WRECKERS
OUT OF 10 MAINTENANCE SHOPS AND A FULL SCALE BODY SHOP
42. Our Typical Truck and Trailer A LOT IS GOING ON HERE
ELECTRICALLY!
TO MAKE IT ALL WORK YOU HAVE TO BE INVOLVED WITH THE RIGHT SPECIFICATIONS
WHAT A BETTER RESOURCE THAN THE TMC RECOMMENDED PRACTICES?A LOT IS GOING ON HERE
ELECTRICALLY!
TO MAKE IT ALL WORK YOU HAVE TO BE INVOLVED WITH THE RIGHT SPECIFICATIONS
WHAT A BETTER RESOURCE THAN THE TMC RECOMMENDED PRACTICES?
43. What Electrical RPs Are There? THERE ARE A MULTITUDE OF BOTH S.1 ENGINEERING AND MAINTENANCE RECOMMENDED PRACTICES AVAILABLETHERE ARE A MULTITUDE OF BOTH S.1 ENGINEERING AND MAINTENANCE RECOMMENDED PRACTICES AVAILABLE
44. Recommended Engineering Practices There are 40! Which are important to me?
RP 105C Battery Cable Assemblies
RP 114B Wire Harness Protection
RP 127B Fleet Service Light Bulb Specifications
RP 137C Antilock Electrical Supply from Tractors Through the SAE J560
RP 147 SAE J560 Plug and Receptacle Wire-to-Terminal Interface
RP 153 Lamp-to-Connector Interface
RP 154 Guidelines for Wire Harness, Routing, Clamping, and Protection
RP 163 Power Inverter Selection OF THE 40 ENGINEERING RPs THERE ARE AT LEAST 8 THAT COULD OR SHOULD BE INCORPORATED INTO A VEHICLE ORDER SPECIFICATION.
THESE 8 ARE MOST IMPORTANT TO ME
THESE TWO IN PARTICULAR -
ERP 105C PROPER SELECTION MAY ELIMINATE OR AT LEAST REDUCE LOW VOLTAGE PROBLEMS IN YOUR PRIMARY ELECTRIC CIRCUIT
ERP 154 - IS A GOOD START TO ELIMINATE/REDUCE THERMAL EVENTS
OF THE 40 ENGINEERING RPs THERE ARE AT LEAST 8 THAT COULD OR SHOULD BE INCORPORATED INTO A VEHICLE ORDER SPECIFICATION.
THESE 8 ARE MOST IMPORTANT TO ME
THESE TWO IN PARTICULAR -
ERP 105C PROPER SELECTION MAY ELIMINATE OR AT LEAST REDUCE LOW VOLTAGE PROBLEMS IN YOUR PRIMARY ELECTRIC CIRCUIT
ERP 154 - IS A GOOD START TO ELIMINATE/REDUCE THERMAL EVENTS
45. Recommended Maintenance Practices RP 129A
Heavy Duty Vehicle Cranking And Charging Troubleshooting: 12-Volt Systems THERES ONLY ONE RECOMMENDED MAINTENANCE PRACTICE THAT APPLIES TO SPECING A POWER UNIT
AND
OF ALL THE S.1 RPs I THINK IT IS THE MOST USED!
ALL FLEETS SHOULD BECOME CONVERSANT WITH RP 129A FOR SPECING, PREVENTIVE MAINTENANCE, AND ROAD SERVICE REPAIRS
THERES ONLY ONE RECOMMENDED MAINTENANCE PRACTICE THAT APPLIES TO SPECING A POWER UNIT
AND
OF ALL THE S.1 RPs I THINK IT IS THE MOST USED!
ALL FLEETS SHOULD BECOME CONVERSANT WITH RP 129A FOR SPECING, PREVENTIVE MAINTENANCE, AND ROAD SERVICE REPAIRS
46. Battery Box Location BOTH JERRY AND RON MENTIONED ERP 105C BATTERY CABLE ASSEMBLIES
THIS IS A CRITICAL START FOR A PRIMARY ELECTRICAL SYSTEM
REAL ESTATE ON A TRUCK IS AT A PREMIUM TODAY
WHO KNOWS, ONE DAY WE MIGHT END UP WITH ROOF MOUNT BATTERIES!
BOTH JERRY AND RON MENTIONED ERP 105C BATTERY CABLE ASSEMBLIES
THIS IS A CRITICAL START FOR A PRIMARY ELECTRICAL SYSTEM
REAL ESTATE ON A TRUCK IS AT A PREMIUM TODAY
WHO KNOWS, ONE DAY WE MIGHT END UP WITH ROOF MOUNT BATTERIES!
47. Possible Battery Box Locations LOOK AT ALL THE POSSIBLE BATTERY BOX LOCATIONS.
HOW MANY OF YOU HAVE BURNED UP AN ELECTRIC WEED EATER OR HEDGE TRIMMER BY USING TOO SMALL OF AN EXTENSTION CORD THAT WAS TOO LONG? DONT ANSWER
JUST ABOUT EVERYONE HAS.
OHMS LAW DOESNT CHANGE WHEN YOU MOVE THE BATTERIES!
YOU NEED LARGER OR MORE CABLEING
THE FURTHER YOU MOVE FROM THE STARTER.
DONT FORGET THAT FRONT AXLE WEIGHT DISTRIBUTION, THE ADDITIONAL WEIGHT OF AGM BATTERIES, AND ELECTRIC IDLE REDUCTION SYSTEMS ALL FACTOR IN TO THIS AS WELL.LOOK AT ALL THE POSSIBLE BATTERY BOX LOCATIONS.
HOW MANY OF YOU HAVE BURNED UP AN ELECTRIC WEED EATER OR HEDGE TRIMMER BY USING TOO SMALL OF AN EXTENSTION CORD THAT WAS TOO LONG? DONT ANSWER
JUST ABOUT EVERYONE HAS.
OHMS LAW DOESNT CHANGE WHEN YOU MOVE THE BATTERIES!
YOU NEED LARGER OR MORE CABLEING
THE FURTHER YOU MOVE FROM THE STARTER.
DONT FORGET THAT FRONT AXLE WEIGHT DISTRIBUTION, THE ADDITIONAL WEIGHT OF AGM BATTERIES, AND ELECTRIC IDLE REDUCTION SYSTEMS ALL FACTOR IN TO THIS AS WELL.
48. Cabling UNDERSTAND WHAT KIND OF CABLE ARRANGEMENT WILL BE USED.
COMPLIANCE CAN BE USUALLY BE VISUALLY VERIFIED!UNDERSTAND WHAT KIND OF CABLE ARRANGEMENT WILL BE USED.
COMPLIANCE CAN BE USUALLY BE VISUALLY VERIFIED!
49. Low System Voltage I BORROWED THE NEXT TWO SLIDES FROM AN S.1 LOW VOLTAGE PRESENTATION IN CINNCINATTI
THIS ONE ILLUSTRATES VOLTAGE DROP BY CABLE LENGTH FOR VARIOUS CABLE SIZES.
THE HORIZONTAL BARS ARE THE RP 129A NEW AND USED VEHICLE PARAMETERS.I BORROWED THE NEXT TWO SLIDES FROM AN S.1 LOW VOLTAGE PRESENTATION IN CINNCINATTI
THIS ONE ILLUSTRATES VOLTAGE DROP BY CABLE LENGTH FOR VARIOUS CABLE SIZES.
THE HORIZONTAL BARS ARE THE RP 129A NEW AND USED VEHICLE PARAMETERS.
50. Low System Voltage THIS ONE SHOWS THE REDUCTION IN CRANKING RPM AS RELATED TO CABLE LENGTH AGAIN
USING VARIOUS CABLE SIZES
PROPER CRANKING SPEEDS ARE CRITICAL SINCE THE ADVENT OF EPA 2007 ENGINES THIS ONE SHOWS THE REDUCTION IN CRANKING RPM AS RELATED TO CABLE LENGTH AGAIN
USING VARIOUS CABLE SIZES
PROPER CRANKING SPEEDS ARE CRITICAL SINCE THE ADVENT OF EPA 2007 ENGINES
51. Cabling Around The Engine CABLING AROUND THE ENGINE
FROM ALTERNATOR TO STARTER AND THEN TO THE BATTERIES IS EVOLVING AS WELL
THIS IS A EPA 2007 ENGINE CABLING ARRANGEMENTCABLING AROUND THE ENGINE
FROM ALTERNATOR TO STARTER AND THEN TO THE BATTERIES IS EVOLVING AS WELL
THIS IS A EPA 2007 ENGINE CABLING ARRANGEMENT
52. Wiring For An EPA 2010 Engine HERES THE SAME OES WIRING FOR AN EPA 2010 ENGINE, LOOKS CLEANER AND
A BIG IMPROVEMENTHERES THE SAME OES WIRING FOR AN EPA 2010 ENGINE, LOOKS CLEANER AND
A BIG IMPROVEMENT
53. Single Most Important Spec HERE IS THE SINGLE MOST IMPORTANT SPEC TO WRITE IN
MUST PASS TMC RP 129A
IF THEY DID EVERYTHING ELSE RIGHT
IT SHOULDNT BE AN ISSUE PASSING
RP 129A IS SIMPLY A SEQUENTIAL PROCEDURE FOR EVALUATING OR TROUBLESHOOTING YOUR PRIMARY ELECTRICAL SYSTEM I.E. CHARGING AND CRANKING CIRCUITS.
ITS 11 PAGES LONG AND I WONT BORE YOU WITH THE DETAILS
GET FAMILIAR WITH IT WHEN YOU GET HOME!HERE IS THE SINGLE MOST IMPORTANT SPEC TO WRITE IN
MUST PASS TMC RP 129A
IF THEY DID EVERYTHING ELSE RIGHT
IT SHOULDNT BE AN ISSUE PASSING
RP 129A IS SIMPLY A SEQUENTIAL PROCEDURE FOR EVALUATING OR TROUBLESHOOTING YOUR PRIMARY ELECTRICAL SYSTEM I.E. CHARGING AND CRANKING CIRCUITS.
ITS 11 PAGES LONG AND I WONT BORE YOU WITH THE DETAILS
GET FAMILIAR WITH IT WHEN YOU GET HOME!
54. RP 129A Compliant? HERES SOME ENGINEERING DIAGRAMS FROM AN OEM WORKING TO COMPLY WITH RP 129A
SAME CABLE LENGTHS AND DIFFERENT CONFIGURATIONS, ONE WORKS AND ONE DOESNT
I WONT GO INTO DETAIL BUT PRAISE THEM FOR THEIR EFFORTS!
HERES SOME ENGINEERING DIAGRAMS FROM AN OEM WORKING TO COMPLY WITH RP 129A
SAME CABLE LENGTHS AND DIFFERENT CONFIGURATIONS, ONE WORKS AND ONE DOESNT
I WONT GO INTO DETAIL BUT PRAISE THEM FOR THEIR EFFORTS!
55. Frame Grounds LEFT PICTURE IS A WELD-IN GROUND STUD WHICH COULD CAUSE A VOLTAGE DROP ISSUE
RIGHT PICTURE IS A THRU-FRAME BOLTED GROUND STUD ON A RETURN GROUND SPECLEFT PICTURE IS A WELD-IN GROUND STUD WHICH COULD CAUSE A VOLTAGE DROP ISSUE
RIGHT PICTURE IS A THRU-FRAME BOLTED GROUND STUD ON A RETURN GROUND SPEC
56. Over Populated Terminals THESE COULD BE POTENTIAL VOLTAGE DROP ISSUESTHESE COULD BE POTENTIAL VOLTAGE DROP ISSUES
57. Tools to Verify RP 129 RMP 129 IS THE EASIEST TO VERIFY AND IT CHECKS THAT REP 105C WAS FOLLOWED AND MORE.
IT TESTS YOUR BATTERIES, ALTERNATOR, AND STARTING CONTROL CIRCUTS AS WELL.
YOU DONT NEED MUCH IN THE WAY OF TOOLS TO VERIFY AND CAN EASILY CARRY THEM TO A PILOT INSPECTION OR DEALERSHIP.RMP 129 IS THE EASIEST TO VERIFY AND IT CHECKS THAT REP 105C WAS FOLLOWED AND MORE.
IT TESTS YOUR BATTERIES, ALTERNATOR, AND STARTING CONTROL CIRCUTS AS WELL.
YOU DONT NEED MUCH IN THE WAY OF TOOLS TO VERIFY AND CAN EASILY CARRY THEM TO A PILOT INSPECTION OR DEALERSHIP.
58. Verifiable RP 129 IS THE EASIEST RP TO VERIFY AND SURELY THE MOST IMPORTANT ONE FOR A FLEET IN MY MIND!
EITHER THE FLEET CAN DO IT OR HAVE THE OEM DO IT DURING A PILOT REVIEW.
I GO A STEP FURTHER AND HAVE THE DELIVERING DEALER DELIVER A PASSING PRINTOUT WITH EACH TRUCK.
SOME OF THE ENGINEERING RPs WOULD BE HARD OR NEXT TO IMPOSSIBLE TO VERIFY (RP 125A BATTERY VIBRATION OR RP 152 PERFORMANCE OF INTERIOR LIGHTING COME TO MIND) BUT IF WRITTEN IN THE SPEC THE FLEET COULD REQUEST THE OE TO DETAIL HOW THEY COMPLIED.
IF AN RP IS WRITTEN INTO IN A SPEC AND THE FLEET FINDS OUT AT A LATER DATE THE EQUIPMENT DOESNT MEET THE SPEC THEY WOULD AT LEAST HAVE GROUNDS TO START A RESOLUTION DISCUSSION.RP 129 IS THE EASIEST RP TO VERIFY AND SURELY THE MOST IMPORTANT ONE FOR A FLEET IN MY MIND!
EITHER THE FLEET CAN DO IT OR HAVE THE OEM DO IT DURING A PILOT REVIEW.
I GO A STEP FURTHER AND HAVE THE DELIVERING DEALER DELIVER A PASSING PRINTOUT WITH EACH TRUCK.
SOME OF THE ENGINEERING RPs WOULD BE HARD OR NEXT TO IMPOSSIBLE TO VERIFY (RP 125A BATTERY VIBRATION OR RP 152 PERFORMANCE OF INTERIOR LIGHTING COME TO MIND) BUT IF WRITTEN IN THE SPEC THE FLEET COULD REQUEST THE OE TO DETAIL HOW THEY COMPLIED.
IF AN RP IS WRITTEN INTO IN A SPEC AND THE FLEET FINDS OUT AT A LATER DATE THE EQUIPMENT DOESNT MEET THE SPEC THEY WOULD AT LEAST HAVE GROUNDS TO START A RESOLUTION DISCUSSION.
59. Using RPs to Write Your Spec Can Reduce Your Service Expense! USING RPs TO WRITE YOUR SPECs SHOULD REDUCE YOUR SERVICE EXPENSE AFTER THE SALE!
HOPEFULLY, YOULL NEED LITTLE TATERS DISEAL SVC FROM POSSUM HOLLER... LESS.
USING RPs TO WRITE YOUR SPECs SHOULD REDUCE YOUR SERVICE EXPENSE AFTER THE SALE!
HOPEFULLY, YOULL NEED LITTLE TATERS DISEAL SVC FROM POSSUM HOLLER... LESS.
60. Thank You For Your Time and Attention Carl Tapp
(479) 361- 5251
tappc@pamt.com THANK YOU FOR YOUR ATTENTION!THANK YOU FOR YOUR ATTENTION!
61. Questions and Answers