TrailMax T-12-T Page 8 Manual Download

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page 8

T-12-T

Operation

1.6

Alert Symbols

It is important that your know the meaning of the following symbols that are used

throughout this document.

SAFETY ALERT!

This is the safety alert symbol. It is used to alert you to potential per-

sonal injury hazards. Obey all safety messages that follow this symbol to
avoid possible injury or death.

DANGER!

DANGER! indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

WARNING!

WARNING indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION!

CAUTION indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.

CAUTION

CAUTION used without the safety alert symbol indicates a potentially

hazardous situation which, if not avoided, may result in property damage.

DANGER

WARNING

CAUTION

Summary of Contents for T-12-T

Page 1: ...ce 13 2 1 Structural Components 14 Sub Frame 14 Deck 14 2 2 Sub Assembly Components 14 Coupling 14 Jack 15 Cushion Cylinder 15 Deck Latch 15 Deck Hinge Assembly 15 2 3 Running Gear 16 Suspension 16 Hu...

Page 2: ...gnets 34 Electric Brake System Troubleshooting 35 Measuring Voltage 35 Measuring Amperage 37 Electric Brake System Troubleshooting Chart 38 2 9 Pre Storage Maintenance 40 2 10 Pre Season Maintenance 4...

Page 3: ...er awareness and skill can help compensate for these factors This knowledge will assist you to safely enjoy the maximum utility and productivity from your trailer First and foremost DO NOT operate the...

Page 4: ...d to carry the full rated capacity of the trailer Extreme concentrated appli cations may require additional support for the load 1 4 Vehicle Load and Handling Limits Vehicle handling limits can be gre...

Page 5: ...cantly to the handling characteristics of the combination and allow the driver to utilize all the design responses of the vehicle to make evasive maneuvers in the safest manner Irregular terrain steep...

Page 6: ...liar the driver is with the vehicle and the road the less likely he will need to make abrupt emergency maneuvers which will take the vehicle to its limits Control and stability may be main tained if t...

Page 7: ...hat a safety defect exists in a group of vehicles it may pursue a remedy campaign and recall those vehicles However NHTSAcannot become involved in individual problems between you your dealer or Gem St...

Page 8: ...DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a potentially hazardous situation which if not avoided...

Page 9: ...sting the trailer hitch to compensate for settling of tow vehicle springs when loaded Always visually inspect hitch for unusual appearances such as bent components cracks in welds or chipped paint whe...

Page 10: ...er gency to tow vehicle Shut off petcock s on air tank s or if already shut open to exhaust all moisture then shut off It is very important that the air system be drained of moisture after each use to...

Page 11: ...t easy to calculate the total load or determine the load center of gravity A decal on the trailer similar to the one shown below indicates the correct place ment of the load Load the trailer so that 6...

Page 12: ...ding or unload ing it is very important that ramps are adjusted to proper spacing for equipment being transported When loading equipment onto deck drive slowly forward until appropriate tongue load is...

Page 13: ...hly Check for loose or missing suspension fasteners Check brake adjustment see page 25 Quarterly Lube Dico surge actuator rollers see Surge Actuator Maintenance on page 27 Annually Pack wheel bearings...

Page 14: ...ther rubber compound or wood For wood decks it may be necessary to apply a new coat of wood preservative after decking has aged and become dry The best time to apply preservative is during warm weathe...

Page 15: ...or sluggish Fully collapse the cylinder and then remove the filler plug and drain out the old fluid Add 10W hydraulic fluid until the cylinder is full and all the air has been expelled Deck Latch If...

Page 16: ...cess wear elongation of bolt holes and loosening of fasteners Whenever loose or replaced the fasteners in your suspension system should be torqued as detailed below 1 U bolt 45 to 60 lbs ft 2 Shoulder...

Page 17: ...air or a lint free cloth and inspect each roller completely Also clean and inspect the cups races inside the hub Any pitting spalling bluing heat damage or corrosion is cause for replacement NOTE Bea...

Page 18: ...e Bearing Lubrication If your axles are equipped with the E Z Lube feature the bearing can be lubricated without removing the hubs from the axle The feature consists of axle spindles that have been sp...

Page 19: ...sure to reinstall it before pressing in the new seal Apply a Permatex sealant to the outside of the new seal metal seal shells only 3 Tap the seal into place using a clean wood block Hub Reinstallati...

Page 20: ...s refers to the relationship of the center line of the tire to the hub face of the axle Care should be taken to match a replacement wheel with the same offset wheel as originally equipped Failure to m...

Page 21: ...e clean dry and in good condition for applying installation torque Tighten the lug nuts in the following pattern in three steps first to 20 25 lbs ft next to 50 60 lbs ft and then to the final torque...

Page 22: ...Rubber Manufacturers Association or the tire manufacturer Inflation Pressure Correct inflation pressure for the ST235 80R16 tire is 65 psi and is the most impor tant factor in tire life Inflation pre...

Page 23: ...rticular load per tire catalog Side Wear Loss of camber or over loading Adhere to load limits Have axle aligned Toe Wear Incorrect toe in Have axle aligned Cupping Loose bearing or out of balance Adju...

Page 24: ...or volt meter to verify that the electrical system is functioning properly If it is then replace the lamp if not then troubleshoot the electrical system Junction Block The junction block requires no r...

Page 25: ...und especially if you are going to be working under the trailer Brake Adjustment Brakes should be adjusted 1 after the first 200 miles of operation when the brake shoes and drums have seated 2 at 3000...

Page 26: ...ning is worn to 1 16 thickness or less contaminated with grease or brake fluid or abnormally scored or gouged Hardware Check all hardware Check shoe return spring hold down springs and adjuster spring...

Page 27: ...electromagnets in the brakes The high capacity electromagnets are energized and are attracted to the rotating armature surface of the drums which moves the actuating levers in the direction that the d...

Page 28: ...lers provide a modulation function that varies the current to the electric brakes with the pressure on the brake pedal or amount of deceleration of the tow vehicle It is important that your brake cont...

Page 29: ...els and tires not all trailer brakes are capable of wheel lockup If the controller is applying the trailer brakes before the tow vehicle brakes then the controller level adjustment should be adjusted...

Page 30: ...agnets that are de signed to provide the proper input force and friction characteristics Your magnets should be inspected and replaced if worn unevenly or abnormally As indicated below a straight edge...

Page 31: ...of the tow vehicle should be running when checking the voltage so that a low battery will not affect the readings Voltage in the system should begin at zero volts and as the controller bar is slowly a...

Page 32: ...e 32 T 12 T Maintenance From Trailer Harness From Trailer Harness To measure VOLTAGE measure across both brake magnet wires To measure AMPERAGE measure between one open brake magnet wire VOLTMETER AMM...

Page 33: ...g Individual brake amperage draw can be measured by inserting the ammeter in the line at the magnet you want to check Disconnect one of the magnet lead wires and attach the ammeter between the two end...

Page 34: ...ss or malfunction are traceable to improperly adjusted or non functioning controllers See your controller manufacturers data for proper ad justment and testing procedures If the voltage and amperage i...

Page 35: ...LAZED LININGS CORRECT CORRECT BROKEN BRAKE COMPONENTS OVERLOADED TRAILER ADJUST CLEAN OR REPLACE INCORRECT BRAKE COMPONENTS UNDERADJUSTMENT CORRECT MACHINE OR REPLACE GREASE OR OIL ON LININGS OR MAGNE...

Page 36: ...the weight will be off the tires The best way to jack the trailer for this is to place the jack under the trailer frame rail using a wood block to protect the finish Raise the jack until the suspensio...

Page 37: ...g 5 Check brake magnets with an ohmmeter The magnets should check at 3 2 ohms If shorted or excessively worn replace the magnets 6 Lubricate all brake moving parts BRAKE LINING CONTAMINATION Do not ge...

Page 38: ...page 38 T 12 T Section3 Parts 3 1 Structural Components Sub Frame Ref Quantity Description Part No 1 1 Sub FrameAssembly SA 14321 Parts 1...

Page 39: ...T Parts P A R T S DeckAssembly Ref Quantity Description Part No 1 1 DeckAssembly SA 14322 2 2 StepAssembly SA 04069 3 2 Hinge Pins C 06179 4 2 Bolt 3 8 x 3 1 2 Grade 8 NF 18846 5 2 Lock Nut 3 8 NF 37...

Page 40: ...Drop LegAssembly 701165 2 1 Screw and Nut Assembly 712216 3 1 Crank Assembly Kit 800075 4 1 Screw Nut and Bearing Replacement Kit 500220 Note Kit names are bold type while component names are regular...

Page 41: ...page 41 T 12 T Couplers Ref Quantity Description Part No 1 1 2 5 16 Coupler 75074 1 Parts P A R T S...

Page 42: ...page 42 T 12 T Parts Ref Quantity Description Part No 1 1 Pintle Eye BDB 1250 Note Pintle Eye and associated hardware is an available option 1...

Page 43: ...Description Part No 1 1 3 4 x 1 1 2 Adjusting Bolt 17359 2 1 Hook C 04109 3 1 LatchArmAssembly SA 12552 4 3 Grooved Pin C 06050 5 6 E clip SE 982 D 10385 00128 6 6 Flanged Bushing GFI 1618 08 7 1 Lat...

Page 44: ...page 44 T 12 T Parts 1 Cushion Cylinder Ref Quantity Description Part No 1 1 Cushion Cylinder 30X12...

Page 45: ...page 45 T 12 T 3 3 Running Gear Suspension 7K Ref Quantity Description Part No 1 2 7000 Rubber TorsionAxle 12TF0865EEZ0815063501 1 Parts P A R T S...

Page 46: ...ning 040 216 00 7 2 Shoe Hold Down Pin 049 011 00 8 2 Shoe Hold Down Spring 048 077 00 9 1 Adjuster Assembly 043 004 00 10 1 Adjusting Screw Spring 046 125 00 1 Magnet Kit K71 125 00 11 1 Magnet black...

Page 47: ...page 47 T 12 T 9 10 8 6 12 11 13 18 17 1 7 14 15 3 2 5 16 4 Parts P A R T S...

Page 48: ...Bearing Cup 031 030 01 4 8 1 2 Wheel Stud 007 122 00 5 1 Brake Drum 8 stud on 6 5 circle 008 219 13 6 1 Outer Bearing Cup 031 017 01 7 1 Outer Bearing Cone 031 017 02 8 1 Spindle Washer 005 057 00 9...

Page 49: ...ires Ref Quantity Description Part No 1 1 Tire ST235 80R16 2 1 Wheel 17 153 14 SP 3 8 Wheel Nut 1 2 20 60 006 080 00 Note Tires are not available through Gem State Manufacturing contact your local equ...

Page 50: ...04 7 5 Red clearance lamp sealed 10205R 8 4 Oval stop turn tail light sealed 60202R 9 4 Oval mounting grommet 60700 10 1 License plate lamp 26331 11 2 Boot Kit 2 connector 77850 1 Boot Kit 6 7 connect...

Page 51: ...page 51 T 12 T Parts P A R T S 5 6 6 7 8 9 10 12 11 4 3 1 2...

Page 52: ...ug 12 706 2 1 Seven Way Plug and Spring PL 15 730 1 Green Right Turn Blue Stop Yellow Left Turn White Ground Brown Tail and Marker Black Accessories Not Wired Brown Tail and Marker Red or Blue Electri...

Page 53: ...Harness 51362 0096 3 4 Magnet Pigtail 94619 Note Kit names are bold type while component names are regular type kit com ponents if itemized are indexed under the kit name Kit component quantities are...

Page 54: ...Contact a TrailMax representative in your immediate area If you do not have or can not find a representative in your area then contact the factory WarrantyAdministrator for as sistance 1 800 447 0213...

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