Super Handy GUO094 User manual

Operator's Manual
REV 1.1
WARNING:
Read carefully and understand all INSTRUCTIONS before operating. Failure to follow the safety
rules and other basic safety precautions may result in serious personal injury.
Save these instructions in a safe place and on hand so that they can be read when required.
Keep these instructions to assist in future servicing.
Electric Power Dolly

INDEX
1. WARNING -------------------------------------------------------------------------------- 1
2. TECHNICAL SPECIFICATIONS ---------------------------------------------------- 2
3. MAIN COMPONENTS ----------------------------------------------------------------- 3
4. ASSEMBLY --------------------------------------------------------------------------- 4~5
5. OPERATION -------------------------------------------------------------------------- 6~8
6. SERVICE GUIDE ------------------------------------------------------------------ 8~11
7. MAINTENANCE AND STORAGE ------------------------------------------------ 12
8. WARRANTY --------------------------------------------------------------------------- 12
9. TROUBLE SHOOTING ------------------------------------------------------------- 12
10. EXPLODED AND PARTS LIST -------------------------------------------- 12~13

1. WARNING
DO NOT USE THIS PRODUCT TO MOVE TRAILER LOADED OR UNLOADED ACROSS
ANYTHING OTHER THAN LEVEL PAVED SURFACES WITH LESS THAN A 4° GRADE.
DO NOT USE ON A SLOPED DRIVEWAY.
DO NOT ATTEMPT TO USE THIS PRODUCT ON A BOAT LAUNCH.
THIS PRODUCT IS NOT INTENDED TO REPLACE YOUR VEHICLE.
• Thoroughly review the "Installation and Operation Guidelines" and familiarize yourself with
your electric dolly and its operation.
• Never store the battery pack together with nails, screws, keys and other metallic or sharp
objects. These items may cause short circuit of the battery terminal resulting in damage to the
battery and may cause a fire, endangering personal safety.
• Avoid contact with any fluid that leaks from the battery. Dispose of all batteries in appropriate
manner as these batteries will be dangerous and should no longer be used.
• Be sure to dispose of or recycle the battery according to local regulations.
• Before disposal, be sure to protect the terminal with insulating tape to prevent short circuit.
• Do not to disassemble or tamper with the battery in any way. Any such tampering will
automatically void your product warranty.
• Do not attempt to charge a damaged battery pack. Replace it immediately. Adamaged battery
pack may cause a short circuit or fire.
• Battery packs are covered by manufacturers product warranty and will be replaced by vendor
if product is still under warranty.
• Do not burn the battery pack.
• Do not operate the dolly in an environment containing explosive or combustible materials.
• When the dolly is not in use, be sure to cut off the battery power.
• Be sure to use the charger and lead-acid battery packs provided by Superhandy only. Other
types of batteries may burst and cause personal injury.
• Do not to use chargers with damaged wires or plugs. Chargers with such issues should be
replaced immediately.
• Do not to use the charger provided by Superhandy to charge other batteries.
• Do not charge the battery in a humid environment, and do not cover the charger with clothes
or other items during charging.
• The use of accessories not recommended or provided by the charger manufacturer may lead
to the risk of fire, electric shock or personal injury.
• Always charge the battery at a temperature of 32°F-120°F (0°C-49°C).
• Always store the battery at a temperature of 32°F-86°F (0°C-30°C).
• Be sure to disconnect the charger when the battery is fully charged.
• Be sure not to completely discharge the battery. If not in use, be sure to charge the battery
every 3 months.
• DO NOT exceed the maximum Tow limit of this Trailer Dolly.
• Check that the hitch ball and the trailer coupler are securely mounted, and that the brake
control system of your trailer is in good working order before connecting it to the Trailer Dolly.
NEVER pull a RV, yacht or any other trailerwhich has no brake or has faulty brakes.
• Always use factory approved mounting hardware, components and fittings.
• NEVER pull a load with this Trailer Dolly on any steep grade or non-paved road. Always make
sure theroad surface is paved, level and less than a 4 degrees grade.
• Do not use the dolly to move people.
• Do not operate this dolly under the influence of alcohol or drugs.
• Be sure to remove any objects or obstacles that may hinder the safe operation of the dolly.
• When assembling, maintaining or prepping the dolly for storage, be sure to disconnect the
power supply from the dolly.
• DO NOT operate or install the dolly without reading or understanding the operator's manual.
• Do not operate this dolly if you are under 16 years old.
EN 1

2. TECHNICAL SPECIFICATIONS
Main Use
Superhandy electric power dolly is compact in structure and convenient in operation. It is used
for towing trailers, RVs, etc. equipped with ball head couplings. It has the functions of forward,
backward and basic steering. It is intended for movement of trailers over short distances or in
compact confined spaces.
Product Packaging List
1. Handle bar assembly*1
2. Dolly body*1
3. Hitch ball adjusting stem assembly*1
4. Rear support assembly*2
5. Charger assembly*1
6. Accessory kit (pin assembly*2, square pin*2, bolt M10×55*1, nut M10*1, and domed plug*1)
EN2
SKU
Description
Power supply
Power
Maximum bearing capacity
Hitch ball specification
Auxiliary wheels
Dimensions
Net weight/Gross weight
GUO094
Electric Power Dolly
DC24V,9Ah
800W
Trailer Weight: 7500lbs (3400kgs) Tongue Weight: 1250lbs (560kgs)
2-5/16"
W/
60"x28"x39" (1525x712x992mm)
183/227lbs (83/103kgs)
Fig. 1
6

3. MAIN COMPONENTS
1. Start switch: Control the dolly to move "forward" or "backward"
2. Transformer: Voltage conversion, 24V to 12V
3. Controller: A device to preset instructions
4. 7-core socket: Provide 12V power supply to the electromagnetic brake or lift
5. Power wheel: Transmit the traction
6. Adjusting stem: Adjust the position of the hitch ball forward and backward as well as up and
down
7. Hitch ball: To be connected with the trailer coupler
8. Frame nut: Used when the hitch ball is installed in a low position
9. Rear support bar: Prevent the equipment from cocking
10. Universal wheel: Control the direction of traveling
11. Charger: INPUT100~240VAC, OUTPUT: DC28.8V- 2.0A
12. Batteries: Two 12V 9AH lead-acid batteries
13. DC charging socket: For the charger
14. Power switch: Turn "on" or "off" the main power. When the vehicle is not working, please
disconnect the power
15. Voltage and battery level indicator: Indicate the voltage and battery level of the battery
16. Rear axle motor assembly: Source of power
EN 3
Fig. 2

EN4
Fig. 3
4. ASSEMBLY
1. Installation of the handle bar assembly
(See Fig.3)
Open the lid of the control box, thread the
handle assembly lead through the square
opening at the front of the frame (Step 1) and
lead it out through the large round hole on the
side of the control box (Step 2). Insert the
handle bar (Step 3), align with the holes and
insert the bolts M10x55 (Step 4), and tighten
the M10 nuts (Step 5).
2. Connection of connectors (See Fig.4)
Connect the handle bar leads to the
corresponding 2P and 3P connectors.
3. Installation of the hitch ball adjusting
stem assembly (See Fig.5)
Align the trough of the hitch ball adjusting
assembly with the frame and select appropri-
ate holes (Step 1), insert two pins (Step 2) and
then insert two B-type pins for fixation (Step
3).
1
4
3
5
2
Fig. 4
Fig. 5
23
1

EN 5
Fig. 6
4. Installation of the rear support assembly
(See Fig.6)
Insert the two rear support assemblies into the
square holes of the frame respectively (Step
1), align the holes at the right
positions and insert the 8×60
square pins for fixation (Step 2).
5. Battery cable connection (See Fig.7)
2
1
Electrical Schematic Diagram
Seven
core
socket
Operating switch
Transformer
24v to 12v
Controller
Power switch
Power display
XS
Battery
pack
(24V)
M
Holzer line
B Y G
Fig. 7

5. OPERATION
Commissioning and preparations
1. Before operation, check that all bolts are securely tightened, and the hitch ball stem is Secure-
ly fastened to your desired position and locked.
2. Make sure that the tires are not cracked, bulging or otherwise defective, and that the tire
pressure is maintained at 60±2psi (4.2±0.1kgs/cm²).
3. Make sure that the battery has sufficient power. Check that the switches work and can be
smoothly operated.
4. Test the dolly with no load to confirm that the universal wheels rotate flexibly, go forward and
backward freely.
5. Make sure that the weight of the pulled trailer is less than the maximum bearing capacity of the
dolly.
6. Check that the hitch ball and the trailer coupler are tightened and that the brake control system
is reliably working before attaching the trailer.
7. Make sure the working road surface is level and less than 4 degrees grade.
Selection of hitch ball position
1. In order to ensure that the dolly operates with the maximum traction and sufficient friction is
maintained between the wheels and the ground, please select the appropriate hitch ball
position according to the use scenario. As shown in the figure, when the machine travels in the
D direction, please put the hitch ball adjusting stem at the Gear A position; when it travels in
the R direction, please put the hitch ball adjusting stem at the Gear B position. (See Fig.8)
2. The hitch ball height of the dolly can be adjusted up and down (Figure a), or the hitch ball can
be installed directly on the main frame (Figure b), with the lifting range of the hitch ball
height:17.2″-25.6″. When installing the trailer, always make sure the connecting rod is parallel
to the ground, because any tilt will affect the traction efficiency and even the safety risk of
overturning (Figure c). (See Fig.9)
EN6
D
AB
R
Fig. 8
Fig. 9
Fig. b
Fig. a
Fig. c

3. The rear support wheel assembly is intended
to provide support and increased stability
during towing., and according to the road
conditions, can position can be adjusted up
and down as well as forward and backwards
relative to the main wheels. DO NOT operate
trailer dolly without the support wheel assem-
bly properly attached and secured in place. i.
(See Fig.10)
Towing Procedure
1. First move the dolly near the trailer coupler of
the trailer, and adjust the height of the hitch
ball according to the height of the trailer
coupler, until the hitch ball is slightly lower
than the trailer coupler. Move the dolly so that
the hitch ball and the trailer coupler are
coaxial (Step 1), lower the trailer slowly via the
lifter until the trailer coupler fully engages with
the hitch ball (Step 2), and lock the safety
hook after making sure that the hitch ball and
the trailer coupler are connected securely
(Step 3). (See Fig.11)
2. Turn on the power switch (Step 1) and check
if the voltage and battery level indication is full
(Step 2). Press the start switch in the same
direction as the dolly (Step 3) and then the
vehicle starts to move slowly at a speed of
1.5km/h. (See Fig.12)
EN 7
Fig. 10
Fig. 11
123
Fig. 12
Start switch
Power switch Voltage and
battery level
indicator

3. Shut down the power after use. And park the dolly in the correct position. Please maintain
the battery charge level. BATTERY CHARGE LEVEL MUST BE MAINITAINED
REGUALRLY OTHERWISE THE LEAD ACID BATTERY MAY BECOME FULLY
DISCHARGED, RESULTING IN DAMAGE TO THE BATTERY OR FAILRE FOR IT TO
MAINTAIN ANY CHARGE.
OVERLOAD PROTECTION
The dolly is equipped with overload protection system, which will shut down the dolly when it
detects an overload situation. This will protection is for both user and the product. To prevent the
potential risk of damage or destruction of the machine, or injury to the operator.. Please do not
try to start when the dolly overloaded and shut down, please re-start after the loading weight
has been reduced to within the max rated capacity of the product.
6. SERVICE GUIDE
Replacement of the start switch
a. Pry open the snaps on both sides of the start switch (Step 1) to remove the switch, and
disconnect all terminals (Step 2). (See Fig.13)
b. Installation of a new start switch. Referring to the wiring diagram, insert the corresponding
terminals (Step 1), press the start switch (Step 2) to make sure that the dolly moves in the
same direction as shown by the switch arrow, and then align with and push the start switch
into the square hole (Step 3). (See Fig.14)
EN8
11
2
Fig. 13
Front Rear Trial-operation Push into square hole
(Step 1) (Step 2)
Yellow-green lineYellow-green line Yellow-green line Yellow-green line Brown line Brown line Black lineBlack line Blue line Blue line Grey line Grey line
Fig. 14

EN 9
Fig. 15
Replacement of the power wheels
a. Remove the four M14 nuts (S/N 7) and knock
the power wheel down alternately with a soft
hammer from left to right (S/N 8).
(See Fig.15)
b. With the inflating inlet of the power wheel
facing outward, align the mounting holes over
the bolts, tighten the 4 M14 nuts diagonally.
(See Fig.16)
Replacement of the controller
a. Remove the M4 screws on both sides of the
control box, open the lid of the control box
(Step 1), pull all the terminals out of the
controller, and remove the controller (Step 2).
(See Fig.17)
Remove nuts
Remove the wheel
Fig. 16
Fig. 17
2
1

EN10
b. Installation of the controller. Insert the
controller into the box compartment, connect
the corresponding color wires and controller
terminals according to the diagrams (Figure a,
Figure b and Figure c), close the box lid and
tighten the screws on both sides.
(See Fig.18)
Replacement of power switch
a. Open the lid of the battery box (Step 1),
disconnect the battery terminals (Step 2) first
(to prevent safety accidents caused by short
circuit), and then pull all the terminals out of
the power switch (Step 3). Press the snap feet
on the inside of the switch inward to push the
switch out. (See Fig.19)
Fig. 18
(a) Connect with the rear axle(a) Connect with the rear axle
(b) Connect with the batteries(b) Connect with the batteries
(c) Connect with the start switch
(c) Connect with the start switch
Fig. 19
1
2
3

Battery “-” (Black)Battery “-” (Black)
Battery “+” (Red)
Battery “+” (Red)
Controller “-” (Black)
Controller “-” (Black)
Controller “+” (Red)Controller “+” (Red)
Step 2
EN 11
b. Align the power switch with the square hole of
the lid and press it directly to the bottom (Step
1), make sure the snap feet is secured firmly,
insert the terminals according to the electrical
diagram, and then turn on the power after
confirming that it is correct (Step 2).
(See Fig.20)
Replacement of batteries
a. Open the battery lid, pull all the terminals out
of the batteries (Step 1), remove the 2 M5
screws, and remove the fixing bracket and
batteries (Step 2). (See Fig.21)
b. Install new batteries in the reverse order of the
steps described above, and connect the
terminals according to the electrical diagram.
Note: Due to transportation conditions,
please purchase the same model NPP 12V
9A of batteries locally for replacement.
Note: Please disconnect the charging
plug and the tool power switch before the
above maintenance operation.
Maintenance shall be carried out under
the professional guidance of the
manufacturer, service agent or similar
full-time personnel to avoid danger.
Damaged machines, accessories and
packaging materials must be treated by
classification according to local
environmental protection requirements.
Step 1
Fig. 21
Fig. 20
Fig. 20 Step 1Step 1
Step 2

EN12
7. MAINTENANCE AND STORAGE
1. For storage, the product shall be stored in a cool, dry and dust-free place, to avoid direct
sunlight and rain.
2. During the transportation, loading and unloading of the product, it is prohibited to cast, drop,
throw, trample and perform other barbaric operations on the product.
8. WARRANTY
Twelve (12) months for workmanship of the product, except for wearing parts. Warranty period
starts from the product purchase date. Warranty covers material quality and workmanship only.
Warranty does not cover product for issues caused by improper usage or any operation not in
accordance with the specifications of this manual. Any modification or tampering with the
product in any way voids the warranty.
9. TROUBLE SHOOTING
10. EXPLODED AND PARTS LIST
Problem(s)
Power dolly do not works.
Power dolly stop during
working.
Possible Cause
Power shut down.
1. Batteries in low.
2. Power dolly
overloaded.
Corrective Action
1. Check the battery status make sure it in full .
2. Check the power switch in power on status.
3. Check the connect cable without loose.
1. Recharge the power dolly in full.
2. Reduce the loading weight with the capacity
and re-start.

EN 13
Part No.
1
*2
3
4
5
6
7
*8
*9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Description
Handle sleeve
Start switch
Switch box
Handle bar assembly
Hex nut M24×3
Split pin 4×50
Nut M14×1.5
Power wheel 16.5×6.5-8
Controller 24v 800w
US-style 7-core socket
Screw assembly M5×16
Holder
Binding post
Control box assembly
Adjusting stem assembly
Hitch ball mount
Hitch ball
Square pin
Flange gear assembly
Bearing
Gear cover plate
Plug Φ26
Frame assembly
Bolt M10×30
Nut M10
Rear support assembly
Support wheel installation assembly
Universal supporting wheel 3"
Q’ty
2
1
1
1
2
2
8
2
1
1
8
2
1
1
1
1
1
2
2
4
2
3
1
20
21
2
2
2
Part No.
29
30
31
32
33
34
35
*36
37
38
*39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
Description
Square pin
Tab
Washer
Pin assembly
Rear axle 24V 800W
DC socket
Battery box assembly
Power switch
Voltage and battery level indicator
White one-sided sponge tape
Battery 12V 9Ah
Fixing bracket
Harness 6
Harness 5
Harness 1
Harness 2
Harness 3
Bolt M10×55
Charger 24V 2A
Universal wheel 8"
Bolt M8×65
Domed plug
Nut M8
Terminal
Harness 4
Transformer
Screw M4×8
Q’ty
4
8
6
2
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
2
3
1
3
2
1
1
7
Note: "*" is the quick-wear part of the product.

Great Circle USA
Support Line: 1-866-493-0524
[email protected]
www.greatcircleus.com
Size: 145x210mm REV 10/09/22 6.02.00011157克双铜