Specifications

• Inspectthetowhitchforcorrosionordamage.Repairorreplacecomponentsasneces-
sary.
• Checkforwearonthehitchball.Theballdiametermustbeintherangeof1.970”-
2.00” when measured in all directions. If the ball is worn, it is UNSAFE and must be
replaced.
• Checkthecouplermechanismforsmoothoperation.Ifthebuttonishardtopushorthe
latch handle does not spring open after being disengaged, lubricate the points on the
coupler latch mechanism.
• Checktheactuatorforexcessivewear.Iftheoutermemberisrubbingagainstthe
inner, wear marks will show on top of the coupler just forward of the outer member.
Contact an authorized MasterCraft dealer for replacement parts.
• Checktheactuatortravel.Excessiveactuatortravel(overoneinch)whenthebrakes
are applied indicates air in the brake lines.
• Checkthebrakefluidinthemastercylinderreservoir.Togainaccesstothereservoir,
remove the cap on top of the actuator. Clean the area around the master cylinder plug.
Use a screwdriver to carefully pry off the plug. Make sure the rubber seal around the
opening is in good condition. Clean brake fluid off the level indicator on the plug. Re-
install and remove the plug. Brake fluid should just touch the end of the level indicator.
• Checkforfoamorbubblesinthebrakefluid.Ifeitherispresentdrainthefluidfromthe
master cylinder and replace with ONLY new brake fluid of the same type (DOT 3 or 4).
In order for brakes to function properly, all air must be expelled from the brake system.
If bleeding is necessary, follow the manual bleeding of the brake system instructions as
outlined in this Owner’s Manual. It is imperative that the system be filled with only ONE
type of brake fluid. Different types do not mix. Follow the instructions on the brake fluid
container.
• Checkthesafetychainsandattachmentpointsfordamageorwear.Repairorreplace
as necessary.
• Checkthebreakawaycableforwornorfrayedcablestrands.Endfittingsshouldbe
checked for damage. Replace as necessary.
• Checkforanyhydraulicleaksinthebrakesystem.Besurealltubefittingsaretight.
Periodic checks must be made on all hoses, brake line tubing and fittings to guard
against cuts, worn hoses and loose fittings that may cause leaks in the trailer brake
hydraulic system. Replace deteriorated and damaged parts as necessary.
• Checkforchipsandnicksinthepaint.Touchupasnecessary.Ignoringthiswilllead
to accelerated wear and deterioration of the trailer.
• Checktheconditionofthebunks.Ifthecoveringsshowwear,discusswithanau-
thorized MasterCraft dealer. If the coverings are not in good condition or if the bunk
sub-frame shows any damage this will adversely affect the fit of trailer to boat. This
can result in damage to the boat hull, which is not covered under warranty.
Storage (for several months):
• Ifatallpossible,parktheboattrailerinaprotectedareasuchasagarage,carportor
similar shelter.
• HavethewheelbearingscheckedbyanauthorizedMasterCraftdealerpriortore-use.
• Loosenthetie-downsandwinchstrap,butbesuretheboatisstillrestingproperlyon
the hull supports.
• Removethedrainplugandelevatethetrailertongueslightly(justaninchortwo)to
allow water to drain out so the boat will be dry. Tie the drain plugs from the boat’s bilge
system to something obvious such as the steering wheel so that they will be easy to
remember to re-install before the next outing.
• Agoodtimetotouchuprustspots,nicksandchipsiswhenthetrailerisinstorage.
• Replacedamagedtie-downs,winchstraps,wiring,etc.
• Maintainpropertireinflation.
• ShieldtiresfromUVrays.
MasterCra Trailer Manual • Page 30