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2.  Once locking pin is removed, lift or lower A-frame to 

desired height. Replace locking pin.

3.  Repeat above steps on other A-frame.

CAUTION

It may be necessary to replace  
locking pin and readjust lifting  
handle location in order to properly 
lift or lower A-frame to desired height 
comfortably. Failure to adjust lifting 
handle to a comfortable location for 
lifting may result in injury.

CAUTION

Be certain to check that lift is level 
after adjusting A-frame heights before  
attempting to add a load.

Gantry Span Adjustment

5m and 15 ft GH3/4T Gantry beams have two inner 
span adjustments on each end of the beam. 3m, 4m, 
10 ft and 12 ft Gantry beams have one inner span  
adjustment. Span adjustments are by increments of 
13" (33 cm). 8 ft Gantry beams have no span  
adjustments.

To make span adjustments during assembly, simply 
place the outermost bolt on the A-Frame in the second 
or third inside bolt hole on the beam. It is not neces-
sary to adjust the span symmetrically on either end of 
the beam.

Moving Gantry Lift

CAUTION

It is not recommended to move  
Gantry lift with a load. When  
moving Gantry lift with a load be sure 
to secure trolley in center of cross 
beam and lower load as close to the 
ground as possible prior to moving. 
Move lift by pushing the Gantry, not 
the load. Use caution to avoid the 
load swinging, possibly hitting the 
support structure.

CAUTION

Never move assembled Gantry lift 
with or without a load with a forklift or 
other lifting mechanism.

1.  Adjust A-frame heights to lowest possible position 

prior to moving.

2.  Unlock all casters on both A-frames.

3.  Gantry should be moved with at least two people, 

one on each end. Move by pushing or pulling on the  
Gantry, not the load.

Summary of Contents for Sumner GH3/4T-15

Page 1: ...88 phone 281 999 6900 fax 281 999 6966 UNITED KINGDOM Unit 3 Kempton Road Keytec 7 Business Park Pershore Worcestershire WR10 2TA UK phone 44 01386 556278 fax 44 01386 556776 NETHERLANDS Midden Engweg 21 NL 3882TS Putten Netherlands europeansales sumner com phone 31 0 85 489 0284 CANADA 75 Saltsman Drive Unit 5 Cambridge ON N3H 4R7 phone 519 653 5300 fax 519 653 5305 Sumner Manufacturing Company L...

Page 2: ... death CAUTION Hazards or unsafe practices which could result in minor personal injury product or property damage IMPORTANT Indicates information or instructions that are necessary for proper operation and or maintenance Index Introduction 3 Gantry Components 3 Operator Safety Instructions 3 GH3 4T Gantry Lift Assembly 3 6 1 Erect A Frame 4 2 Assemble Components 5 6 Gantry Height Adjustment 6 7 1 ...

Page 3: ...t to operate the equipment at more than the recommended capacity 7 No riders on unit This unit was designed for material lifting purposes ONLY and is not designed to function as a personnel lift or carrier 8 NEVER stand under an elevated load 9 NEVER exceed rated load capacity 10 NEVER operate during high winds or electrical storms 11 NEVER use Gantry lift to support ladders or other climbing devi...

Page 4: ...g until the button clicks in place locking the leg in the open position Repeat process for second A frame 3 Lock all casters on both A frames by pushing down on caster brake mechanism 4 Casters can be locked at 90 degree angles to make transport easier To lock caster at a 90 degree angle flip the caster lock lever as indicated in above illustration 5 Position A frames as necessary at either end of...

Page 5: ...m Center trolley on cross beam and tighten with set screw 4 Lift cross beam end without bolt inserted and position on A frame lining up outside bolt hole on A frame with desired bolt hole on cross beam 5 Place bolt through bolt hole on A frame and cross beam with washers on either side of the bolt Loosely tighten so A frame can swivel when A frame is erected 6 Erect one A frame and line up inside ...

Page 6: ...N NEVER attempt to adjust the height while the lift is holding a load CAUTION Be certain trolley is centered and held in place with set screw before attempting to adjust A frame height 2 Adjust lifting handle location Release the plunger pin on the lifting handle and slide handle to desired position most convenient for lifting or lowering A frame height Release plunger pin and be certain it locks ...

Page 7: ...s have no span adjustments To make span adjustments during assembly simply place the outermost bolt on the A Frame in the second or third inside bolt hole on the beam It is not neces sary to adjust the span symmetrically on either end of the beam Moving Gantry Lift CAUTION It is not recommended to move Gantry lift with a load When moving Gantry lift with a load be sure to secure trolley in center ...

Page 8: ...2 12 8 casters 118 299 7 cm 136 345 4 cm 785305 GH3 4T 10 10 8 casters 94 238 8 cm 112 284 5 cm 785307 GH3 4T 8 8 8 casters 70 177 8 cm 88 223 5 cm 785311 GH3 4T 3 3m 8 casters 92 233 7 cm 110 279 4 cm 785313 GH3 4T 4 4m 8 casters 131 5 334 0 cm 149 5 379 7 cm 785315 GH3 4T 5 5m 8 casters 166 421 6 cm 184 467 4 cm 785300 GH3 4T 15 15 10 wheels 118 299 7 cm 88 223 5 cm 130 5 331 5 cm 154 391 2 cm 1...

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