Cobra GTT400HD Owner's Manual

MODEL: GTT400HD

HEAVY DUTY DUMP TRAILER
OWNERS MANUAL

Cart shown above may differ slightly in design from actual cart.

COBRA CARTS AND TRAILERS - INSTRUCTION MANUAL

YOU MUST READ THIS DOCUMENT BEFORE YOU
BEGIN TO ASSEMBLE THE POLY DUMP CART.

Thank you for purchasing this poly dump cart. When
properly assembled and maintained, this product will
provide years of reliable service. These instructions include
helpful hints and important information needed to safely
assemble and properly maintain the dump cart. Please
read these instructions before you begin.

If you have any questions during the assembly, contact
Customer Service for assistance.

SAFETY PRECAUTIONS

Do not use the dump cart if any part is broken or

damaged.

This dump cart is not a toy . Do not allow children use
the dump cart.

Do not use on inclines; dump cart may tip or roll away.

Do not load your dump cart with more than 600lbs.

Inflate the tires with ambient air only.

Inflate the tires to the proper level as indicated on the
tires. Do not inflate tires more than 30 PSI.

Never use a flammable gas to inflate the tires.

Always set the handle to its standard position when
pulling the cart with a garden tractor.

Never allow riders in the dump cart.

Always empty the dump cart before disconnecting it
from a garden tractor.

CARE AND MAINTENANCE

Periodically check nuts and bolts to make sure they are
tight and secure.

Clean the dump cart using water and mild soap. Rinse
with water sprayed from a garden hose. (Tip the dump
cart forward to let water drain out after washing.)

Inspect the cotter pins in the axle and verify that they
are in position and in good condition.

Check the tire pressure and adjust to recommended
pressure if needed.

Periodically lubricate the caster to ensure smooth
operation.

REQUIRED TOOLS

The following list identifies the main tools needed for
assembly. Recommended two (2) people for assembly.

Flathead and Phillips screwdriver

Metric and standard wrenches and socket set

Pliers

UNPACK AND IDENTIFY PARTS

The following steps will ensure that you have all the
necessary parts before you begin to assembly.

Unpack the contents of the shipment and place where 1.
you can easily inventory the parts.

If anything is missing or you have questions, consult 2.
the Pictorial Parts List or contact Customer Service.

Cart tongue must be in its retracted or standard
position when the cart is not pulled.

Stand clear of the tongue and handle when dumping
the dump cart; each will raise when the cart is dumped.

Push cart with caster

2

Pull cart with stand

ATTACH AXLE PLATE

1

The following steps show how to assemble
the pull style dump cart.

NOTE: Fasteners needed to secure the axle
plate to the tub are attached to the axle plate.

Photo shows the axle removed from the axle
plate. Axle is shipped inserted into the axle
plate and can be removed during installation if
desired.

With assistance, place the tub on its side 1.
on a flat surface and hold or brace in
position.

NOTE: You must be able to access the
inside and underside of the tub to attach
the axle plate.

CARTS AND TRAILERS

Align the holes of axle plate with the holes 2.
of the tub as shown in diagram A.

A

Parts List and Tools Required

Phillips Screwdriver

Secure the axle plate to the tub using the 3.
ten (10) M10x20 bolts, M10 flat washers,
M10 lock washers, and M10 nuts.

Insert all bolts through the dump cart tub
with the head of the bolts to the inside of
the tub. The nuts and lock washers are

to the outside against the axle plate as
shown in diagram B.

Tighten all bolts. 4.

Axle Plate (1)

Tub (1)

B

Socket/Wrench Set

M10 x 20mm Bolts (10)

M10 Lock Washer (10)

M10 Hex Nut (10)

3

COBRA CARTS AND TRAILERS - INSTRUCTION MANUAL

ATTACH SUPPORT

NOTE: Fasteners needed to secure the support to

the tub are attached to the support.

Align the holes of the support with the holes 1.
near the end of the tub (A).

Secure support to the tub using four (4) M8x15 2.
bolts, four (4) M8 flat washers, four (4) M8 lock
washers, and four (4) M8 hex nuts.

NOTE: Secure bolts into the outer bolt holes.
See white arrows below (B). The inner bolt

holes are used to attach the handle assembly.

Insert all bolts through the dump cart tub with
the head of the bolts to the inside of the tub

Tighten all bolts.3.

A

Parts List and

Tools Required

Phillips Screwdriver

Support

M8 Flat Washer (4)

M8 Hex Nut (4)

B

M8 x 15mm Bolts (4)

Socket/Wrench Set

4

M8 Lock Washer (4)

Support