Recreational Vehicle Registered Technician Duty Weights. Task Weights

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Franklin Butler
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1 RV Service Registered Technician Study Guide July 2017

2 Recreational Vehicle Registered Technician Duty Weights Number of Test Items A Propane Systems 37 B Electrical Systems 27 C DC Electrical Systems 4 D AC Electrical Systems 4 E Plumbing Systems 5 F Interior Components 6 G Technical Skills 22 Total Questions 105 Recreational Vehicle Registered Technician Task Weights A B C D E F G Number of Test Items Propane Systems 1 Comply with propane safety procedures 7 2 Demonstrate general knowledge of propane 9 3 Knowledge and identification of propane containers 13 4 Perform propane system tests 7 5 Troubleshoot prpane system faults 1 Electrical Systems 6 Testing devices usage and testing 7 7 Identify AC and DC systems 1 8 Define common terms and components 14 9 Identify types of wiring and connections 4 10 Types of circuits 1 DC Electrical Systems 11 Demonstrate knowledge of basic DC electricity and safety 4 AC Electrical Systems 12 Demonstrate knowledge of basic AC theory and safety 4 Plumbing Systems 13 Define common terms and components 5 Interior Components 14 Inspect/install/maintain safety equipment 6 Technical Skills 15 Install accessories (interior and exterior) 1 16 Perform pre delivery inspection Demonstrate effective customer service skills (NOT TESTED) 0 18 Perform recordkeeping tasks (NOT TESTED) 0 19 Identify types of RVs 3 20 Understand Weight related terms and definitions 3 Total Questions July 1, 2017

3 The purpose of this Study Guide is to help the Recreational Vehicle (RV) Service Technician prepare to take and pass the RVIA/RVDA RV Service Registered Technician Test. The curriculum for the RV Service Tehnician outlines all the Duties, Tasks and Steps a service technician is expected to know. This study guide is focused on the Registered Technician level of certification. The following is a limited list of resources where additional training can be obtained: RV Service Technician Textbooks, Introduction to RV Service Textbook Preventive Maintenance RV Propane Systems Textbook RV Electrical Systems Textbooks RV Pre Delivery Inspection Textbook rvtechnician.com Popular search engines such as Google, Siri, etc. Get plenty of rest the night before the test so you will be alert and efficient. Once testing has begun, keep track of the time. Do not spend too long on any single question. Be sure to read each question carefully so you understand exactly what is being asked. If a question is difficult, mark the answer that you think is correct and mark it to go back later if you have time. It is to your advantage to answer every question. Do not leave any answers unmarked or unanswered. Your score will be based only on the number of correct answers you give. 3 July 1, 2017

4 A PROPANE SYSTEMS 1 Comply with propane safety procedures a Avoid propane contact with skin to prevent tissue damage -- frostbite Avoid overfilling containers to prevent liquid from getting into propane piping, liquid expansion, regulator b damage and propane vapor release -- weigh and fixed liquid level gauge -- DO NOT DEPEND ON OPD c Use proper tools --open end wrench, slotted screwdriver --proper use of back-up wrenches --proper adapters for ASME or DOT --scales to weigh DOT cylinders d Maintain safe distance from ignition sources to avoid explosion and fire --25 feet from source of ignition e Wear proper protective clothing --goggles --specialized gloves (non-porous neoprene or leather) --closed toe shoes (steel toe preferred) f Properly store propane cylinders to avoid vapor build up --open ventilated space --proper orientation --with valves closed and safety/dust caps installed g Transport cylinders properly --proper orientation --secured (not in a passenger area) --vented location h Knowledge of local and state laws (not tested) - ask your service manager i Awareness of national RV specific codes and standards --National Fire Protection Association (NFPA) Canadian Standards Association (CSA )Z240 2 Demonstrate general knowledge of propane a Define properties of propane --temperature --vapor is heavier than air --ordorant --colorless b Define common terms and identify components --propane pressure measurements ---inches of water column (IWC) ---pounds per square inch guauge (psig) 3 Knowledge and Identification of propane containers/appurtenances and components a Types of containers --DOT cylinder (towables) --ASME Tank (motorhomes) --container (common term for both cylinder and tank) b List of appurtenances --fixed liquid level gauge --service valve --sight gauge --pressure relief valve -- overfilling prevention device (OPD) c Review the container data plate --date of manufacture/cylinder recertification (after 10 years) --tanks do not require recertification --water capacity (W.C.) --dip tube length in inches (cylinder) --tare weight (cylinder) d Visually inspect container surface --inspect for damage (e.g., secondary heat damage, drop damage, broken welds, dents etc.) --inspect for surface rust 4 July 1, 2017

5 e Inspect/install container mountings and brackets f Inspect/adjust/replace a two-stage system regulator --purpose of a two-stage system regulator --locate vent position --adjust regulator --replace regulator --ensure required protection (compartment vs. cover) --automotive changeover regulator g Purge containers h Fill containers --A 20 lb cylinder contains 20 lbs. of propane at 80% full) --Purpose of vapor withdraw tube (also known as J- tube or drop tube) i Transfer propane from one container to another container j Comply with safety procedures addressed throughout standard (NFPA 1192 and CSA Z240) 4 Perform propane system tests a Perform container and fitting leak tests --use appropriate leak detector solution (if making soap solution do not use ammonia or chlorine) --operate electronic gas leak detector b Perform system tests --timed pressure drop test with properly calibrated manometer (minimum 3 minutes) --leak test pigtail connection (backflow device) (cylinders only) --lockup test (14 inches water column) (IWC) (at least one appliance operating) --system operating pressure test (at least 50% demand) c Perform appliance tests --appliance functional tests d Complete proper documentation of repair order --signature, date, time, make, model, VIN, test results 5 Troubleshoot propane system faults a Understand why propane pressure could fluctuate during system tests b Inspect for kinked hose or tubing B ELECTRICAL SYSTEMS 6 Testing Devices Usage and Testing a -VOM (digital multimeter DMM) b -ammeter/clamp on ammeter c - ohmmeter d -Ground Fault Circuit Inerrupter (GFCI tester) 7 Identify AC and DC systems a -DC is battery current (nominal12 volt) b -AC is household current (nominal120 volt) 8 Define common terms and components a -open (no current flow) b -short (low resistance) c -voltage drop d -resistance e -grounding f -polarity g -continuity h -amperage (current) i -voltage (electromotive force) j -isolated neutral k -hot skin l -inverter m -converter n -generator o -alternator p -6 volt battery q -12 volt battery --battery shelf life r -transfer switch 5 July 1, 2017

6 s -energy management system (EMS) t -monitor panel u -break-away switch 9 Identify types of wiring and connections a -scotch lok b -wire nuts c -crimp connectors d -molex and TII (self contained power connector) e -stranded wire (DC) f -solid wire (AC) g -wire gauge (sizing) h -cords 10 Types of circuits a --ampacity versus wire gauge size b --size of wire gauge vs. size of overcurrent protection C D E DC ELECTRICAL SYSTEMS 11 Demonstrate knowledge of basic DC electricity and safety a Comply with safety procedures --common fire hazards --battery safety and explosion hazards (hydrogen is explosive) b Identify overcurrent protection types --fuse (glass or blade) --circuit breaker (Class I, II, and III) AC ELECTRICAL SYSTEM 12 Demonstrate knowledge of basic AC theory and safety a Comply with safety procedures --common shock hazards b Identify GFCI (ground fault circuit interrupter) --purpose --receptacles --circuit breakers c Identify ampacity of shore power service --30 amp --50 amp PLUMBING SYSTEMS 13 Define common terms and components a fresh water distribution --storage tanks (fresh water/potable) --pump --fill (gravity and city) --water distribution lines --faucets (including exterior) --check valves --vacuum breakers --low point drains --water heater bypass valves --filters/strainers/purifiers --accumulators --water pressure regulator 13 Define common terms and components b waste water systems --holding tanks (waste) --termination valves --venting (vent through roof, anti-siphon trap vent device) --p-traps and waterless traps --fixtures --tank flush valves 6 July 1, 2017

7 --macerators F G INTERIOR COMPONENTS 14 Inspect/install/maintain safety equipment a Install/maintain/replace smoke alarm/co alarm/ propane detector --expiration dates (per manufacturing instructions) --operational testing (alarm and sensor) per manufacturing instructions) b Install/inspect fire extinguishers --proof of non-use (pin/seal intact) --proper type and size (5B:C/trailers and 10B:C/motorhomes and toy haulers) c Check operation of emergency exits --less than 20lbs of force to open TECHNICAL SKILLS 15 Install accessories (interior and exterior) a Comply with component installation instructions --demonstrate comprehension of reading instructions b Identify considerations for adding accessories cumulative added weight over 100 lbs. requires CCC label to be changed --use of proper fittings, fasteners and sealants --maintain interior and exterior physical clearances (slides, doors, etc.) --verify proper structural support and backing 16 Perform pre-delivery inspection a Test propane systems --timed pressure drop test (minimum 3 minutes) --regulator lock up test (14 in water column) --system operating pressure test (with at least 50% demand on system) b Operational test on all appliances and accessories --cycle appliances, components and accessories and verify operation c Test and inspect AC electrical system --perform visual inspection of AC electrical system and components --hot skin test --polarity test (all receptacles) --voltage test ---static ---loaded --Ground Fault Circuit Interrupter (GFCI) test (GFCI Tester) --circuits (multimeter) d Test and inspect DC electrical system --charging systems ---inverter (nominal 117 VAC) ---converter (13 voltsat full rated DC current (amps) ---solar (14v DC nominal) (check manufacuturer instructions) ---alternator (14v DC nominal) --batteries ---fluid level (topoff with distilled water)(lead-acid) ---secured in place ---charge level (lead acid is VDC; gel cell is 13.0 VDC) ---connections (clean and tight) --operational test of all 12v components e Check safety items --presence and operation (smoke alarm, co alarm, propane detector, fire extinguisher, emergency exits) f Check and lubricate doors, drawers, and windows g Check seals --window --roof (Do not use 100% silicone sealant) --molding h Check wiper blades and wiper/washer operation i Visually inspect all fluid levels (coach and chassis) (oil, hydraulic fluids etc.) 7 July 1, 2017

8 j Inspect belts and hoses --wear and deterioration k Visually inspect chassis --leaks, damage, properly secured components/harnesses l Check tires --torque of nuts/studs --proper tire pressures (including spare tires) --spare tire securement --DOT manufacturing date code m Test electric brake system --measure magnet amperages (3 amps) --test break away (switch and battery charge) --check brake adjustment and bearings n Test fresh water system --pump operation/filter --city water inlet/check valves --interior and exterior faucets and showerheads (hot/cold) --low point drains --pressurized leak test --monitor panel --storage tank ---gravity fill ---city fill ---drain ---vent ---tank securement o Winterize coach and de-winterize --wet method --dry method p Test waste water system --termination valve operation (main drain) --operation of tank flush system --monitor panel --flow test (retarded flow) q Test-drive (motorized only) --handling --steering --braking --noises and vibrations --horn 17 Demonstrate effective customer relations skills (NOT TESTED) a Act courteously b Listen carefully c Use effective communication techniques d Empathize with customer e Ask direct questions f Build trust and rapport g Explain plan of action h Provide RV orientation and instructions i Use protective coverings j Provide helpful hints k Ensure follow-up l Test drive with customer m Return replaced parts to customer/vendor 18 Perform recordkeeping tasks (NOT TESTED) a Record consumer complaint/concern b Record registration and warranty forms c Complete personnel records (time sheets, etc.) d Record and sign for work performed and declined on appropriate form 8 July 1, 2017

9 --timed pressure drop test results (document--date, start and stop time, pressure maintained, etc.) e Record all parts and inventory used f Record time in and time out for service g Record serial number, production number, hours of operation and model of all appliances addressed h Record mileage (motorized units) and serial number of coach 19 Identify types of RVs a Motor homes--class A, B, and C b Towables --travel trailers --hybrids --folding camping trailer c Fifth wheels d Toy hauler e Truck camper 20 Understand Weight related terms and definitions --GVWR (Gross Vehicle Weight Rating) --GAWR (Gross Axle Weight Rating) --TW/pin weight (Tongue Weight) --CCC (cargo carrying capacity in a trailer) --OCCC (Occupant Carrying Capacity in a motorhome) --GCWR (Gross Combined Weight Rating (tow vehicle/trailer combined) 9 July 1, 2017

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