GANTRY CRANE
OWNER’S MANUAL
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.
Items # 41793
Thank you very much for choosing a Roughneck Product! For future reference, please complete
the owner’s record below:
Model: _______________
Purchase Date: _______________
Save the receipt, warranty and these instructions. It is important that you read the entire manual
to become familiar with this product before you begin using it.
This gantry crane is designed for certain applications only. The distributor cannot be responsible
for issues arising from modification. We strongly recommend this gantry crane is not modified
and/or used for any application other than that for which it was designed. If you have any
questions relative to a particular application, DO NOT use the gantry crane until you have first
contacted the distributor to determine if it can or should be performed on the product.
For technical questions please call 1-800-222-5381.
INTENDED USE
The Gantry Crane easily lifts heavy loads (see chart for capacities).
TECHNICAL SPECIFICATIONS
Item
Capacity
Adjust Height (Feet)
# 41793
2 tons
7 7/8 — 11 4/5
Casters
5in.
GENERAL SAFETY RULES
WARNING: Read and understand all instructions. Failure to follow all instructions listed
below may result in serious injury.
WARNING: The warnings, cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions or situations that could occur. It must be
understood by the operator that common sense and caution are factors which cannot be built into
this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS
WORK AREA
 Keep work area clean, free of clutter and well lit. Cluttered and dark work areas can cause
accidents.
 Keep children and bystanders away while using the crane.
 Be aware of all power lines and other hazards in the work area.
 The gantry crane should not be installed/assembled, operated, or maintained by any
person who has not read all the contents of these instructions and the gantry crane safety
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standards and inspection requirements such as ANSI/ASME B30.17. Failure to read and comply
with these instructions or any of the warnings or limitations noted herein can result in serious
bodily injury or death, and/or property damage.
 Only trained and qualified personnel should operate and maintain the gantry crane.
 The gantry crane described herein is not designed for, and should not be used for lifting,
supporting, or transporting humans or animals.
 User should not use this gantry crane in conjunction with other equipment unless necessary and
required safety devices applicable to the system are installed by the user.
 Do not make any modifications intended to upgrade, reconstruct or otherwise alter the
gantry crane.
PERSONAL SAFETY
 Do not move the Crane when it is under load. The Caster Wheels are not designed to be
rolled when the Crane is lifting an object.
 Never stand under an object that is being lifted by the Crane. Be aware of the possibility
of a load slipping off a trolley. An item that falls from the Crane may cause serious injury.
 Do not exceed lift capacity of crane. Take into account the hoist and trolley as well.
 Only trained and qualified personnel should operate this gantry crane.
 WARN personnel approaching loads to be lifted and moved.
 MAKE SURE that the load is secured, balanced, and positioned properly in the hook,
sling, or lifting device before the load is lifted.
 MAKE SURE that the load is clear of obstructions, such as stockpiles, machinery,
anchors and so on, when lifting or moving the road.
 While moving, avoid sudden acceleration and deceleration. Ensure path is clear of
objects.
 MAKE SURE that the ground is solid enough to support the crane when fully loaded.
 MAKE SURE that the gantry crane passage is clear.
 The crane shall not be used for side pulls.
 Always operate crane on level surface.
 DO NOT lift loads if the girder is not level.
 DO NOT lift loads over the working load limit.
 DO NOT lift if load is swinging.
 DO NOT lift if the loads are not suspended directly under the girder.
 DO NOT lift loads over people or allow anyone to walk under an elevated load.
 DO NOT use unless you have checked that all nuts on the gantry crane are tightened and
locked by pins.
 DO NOT leave the loads suspended when the gantry crane is unattended.
 Never move or load unless height adjustment pins are fully inserted.
 Check for damage and be sure all hardware is tight before EACH use.
 DO NOT remove, deface, or obscure warnings, caution labels, and capacity labels on the
gantry crane.
 DO NOT use the gantry crane if any parts are bent, have signs of wear or damage, or are
missing.
 ALWAYS keep the gantry crane level.
 ALWAYS keep the girder of the gantry crane level.
 MAKE SURE that the trolley stoppers are fixed to both ends of the girder.
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 MAKE SURE that the trolley is locked before making the gantry crane standing up or
lowering.
ASSEMBLY
Assemble the Crane loose until the entire assembly is complete. Make certain that you have a large,
clean and uncluttered area for assembly. As the Gantry Crane is large and heavy, you may have to
lay out the different parts on their sides, and tighten and erect the entire assembly once complete.
Step 1)
Attach two plates (#20) from two sides to the one end of Crossbeam (#19), secure by
four bolts (#1), washers (#2), spring washers (#3), and nuts (#4). Repeat for another
end.
Step 2)
Attach each Inner Vertical Post Assembly to the Crossbeam (#19), secure by 8 bolts (#1),
washers (#2), spring washers (#3) , nuts (#4)
Step 3)
Attach the four (4) Swivel Casters with brake (#27) to the Base Assembly (#26). Apply
grease to the zerk in each caster.
Step 4)
Attach each Outer Vertical Post Assembly (#24) to each Base Assembly (#26) making
certain that the slot at two sides of the Outer Vertical Post Assembly are facing to the
castors direction. From the top, insert two (2) Bolts (#14) through the base of the Outer
Vertical Post Assembly, and into the Base Assembly (#26). Slip on Washer (#2), Spring
Washer (#3) and secure by tightening on Nuts (#4).
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Step 5)
Attach two (2) Support Tubes (#22) to each Outer Vertical Post Assembly (#23). Insert
the bolt (#5) through the top of the Support Tube, and through the eyelet. Slip on a
Washer (#6), Spring Washer (#7) and secure with the Nut (#8). Attach the other end of
support tube to the base assembly by bolts, washers, spring washers, and nuts. Repeat
for all four (4) Support Tubes.
Step 6)
Insert the Inner Vertical Post (#21) into the Outer Vertical Post (#23). Insert one (1) pin of
the Pins with Chain (part #18) through the slot and the Inner Vertical Post hole so that it
goes all the way through, left the other pin. Attach the Handle (#24) to the bracket on the
side of Outer Vertical Post, insert the Bolt (#10) from the inside, slip on the Washer (#14),
Spring Washer (#15) and secure with the Nut (#11). Make sure the two (2) hooks of the
handle hold the two ends of the Pin (#18). Repeat for another post assembly.
Step 7)
Tighten all the Bolts and Nuts securely and make certain that the entire Telescoping
Gantry Crane Assembly is tight and secure.
Step 8)
Test crane according to manual and ANSI/ASME B30.17 standards.
OPERATION
Never force the tool or attachment to do the work of a larger industrial tool. It is designed to do the
job better and more safely at the rate for which it was intended.
Step 1) Move the Crane so that it is directly above the item to be lifted.
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Step 2) Securely fasten the item to the Crane with the appropriate trolley or hoist.
Step 3)
Raising and lowering the Crossbeam requires 2 people. There is a Handle (#27) on each
of the Outer Vertical Post Assemblies. To raise the crossbeam, press the handle and the
Inner Vertical Post will be up by one hole, insert the other Pin into this hole to hold the
position. Pull out the original pin and make the handle to hook with the new positioned pin.
Repeat it to reach the height you need. The Inner Vertical Post Assembly has thirteen (13)
different stop positions.
MAINTENANCE
 The gantry crane should be maintained daily, monthly, every 12 months or after overloading.
 The maintenance of the trolley and the hoist should be in accordance with relating manuals,
ANSI/ASME B30.11 and B30.16.
 Only trained and qualified personnel should maintain the gantry crane.
 Clear a large enough area for maintenance, at least 1.5 times the Span (L) X 2.5 times the
Height (H) of the gantry crane’s dimensions.
 Lower the load back to the ground if it is attached to the crane.
 All controllers shall be placed in the OFF position. Place warning signs and barriers around
maintenance area.
 Disassemble the gantry crane, inspect all parts of the gantry crane and maintain as instructed in
this manual.
 Replace all roller pins used for locking, all damaged, worn, and bent parts, and lost parts, such
as warning labels.
 After maintenance work is completed and before restoring the crane to normal operation, all
replaced parts and loose material should be removed. Reassemble the crane and conduct tests
according to this manual and ANSI/ASME B30.17.
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DIAGRAM & PARTS LIST
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# 41793 -2T
Part#
Description
1
Bolt M12 x 35
Ø12 washer
2
Ø12 spring washer
3
4
M12 nut
5
Bolt M14 x 40
Ø14 washer
6
Ø14 spring washer
7
8
M14 nut
9
M12 Bolt
10
Bolt M10 x 60
11
M10 nut
12
Bolt M8 x 40
13
M8 nut
14
Bolt M12 x 150
Qty.
24
28
28
28
8
8
8
8
4
4
4
4
4
4
Part#
15
16
17
18
19
20
21
22
23
24
25
26
27
Description
Bolt M10 x 30
Ø10 spring washer
M10 nut
Pin
Cross beam
Plate
Inner Vertical Post
Support Tube
Outer Vertical Post
Handle
Pin
Base assembly
Wheel
Qty.
16
16
16
4
1
4
2
4
2
2
4
2
4
For replacement parts and technical questions, please call 1-800-222-5381.
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WARRANTY:
1-year limited warranty
Distributed by:
Northern Tool + Equipment Co., Inc.
Burnsville, MN 55306
NorthernTool.com
Made in China
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