Wesco 272937 User manual

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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.
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Note: Operator MUST read and understand these operating instructions before using this Truck.
TABLE OF CONTENTS
1 General Information.......................................................................................................................................2
1.1 Description.......................................................................................................................................... 2
1.2 Specifications......................................................................................................................................2
2 Assembly & Adjustment.................................................................................................................................2
3 Operation.......................................................................................................................................................3
4 Safety Information.......……...........................................................................................................................3
5 Trouble Shooting...........................................................................................................................................4
6 Hydraulic Circuit / Electric Wiring Diagram....................................................................................................5
6.1 Hydraulic Circuit Diagram....................................................................................................................5
6.2 Electric Wiring Diagram.......................................................................................................................5
7 Fork Frame Information.................................................................................................................................6
7.1 Fork Frame Parts Diagram..................................................................................................................6
7.2 Fork Frame Parts List..........................................................................................................................7
8 Electric Control Assembly Information...........................................................................................................8
8.1 Electric Control Assembly Diagram (Units Manufactured Before 08/2010 or After 06/2015)........... 8
8.2 Electric Control Assembly Parts List (Units Manufactured Before 08/2010 or After 06/2015).......... 9
8.3 Electric Control Assembly Diagram (Units Manufactured Between 08/2010 & 06/2015)...................10
8.4 Electric Control Assembly Parts List (Units Manufactured Between 08/2010 & 06/2015)................. 11
9 Pump Assembly Information..........................................................................................................................12
9.1 Pump Assembly Diagram (Units Manufactured Before 08/2010 or After 06/2015)...........................12
9.2 Pump Assembly Parts List (Units Manufactured Before 08/2010 or After 06/2015)......................... 13
9.3 Pump Assembly Diagram (Units Manufactured Between 08/2010 & 06/2015)..................................14
9.4 Pump Assembly Parts List (Units Manufactured Between 08/2010 & 06/2015)................................ 15
10 Handle Information........................................................................................................................................16
10.1 New Style Handle Diagram (4 Wire With Up/Down Switch Inside) ....................................................16
10.2 New Style Handle Parts List (4 Wire With Up/Down Switch Inside) ...................................................17
10.3 Old Style Handle Diagram
(3 Wire With Up/Down Switch On Top) ................................................... 18
10.4 Old Style Handle Parts List (3 Wire With Up/Down Switch On Top) ..................................................19
WESCOINDUSTRIALPRODUCTS,LLC
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InstructionManual
ElectricHighLiftTruck
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PartNumber: 272937&272939

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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.
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Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
WARNING: The battery in this product contains lead. The State of California under
Proposition 65 has determined that exposure to lead is known to cause cancer or birth
defects or other reproductive harm. Please wash hands after use.
1. GENERAL INFORMATION
1.1 DESCRIPTION
Thank you for purchasing a Wesco Electric High Lift Truck. This pallet truck is designed for
transporting and horizontal lifting. The electric high lift trucks feature a one year pump warranty and a
battery powered hydraulic lift system that is operated with fingertip controls. It can greatly reduce labor
and increase working efficiency and is an efficient tool for various work environments. It has various
uses such as a work table, a loading and unloading table, and a tool transporter.
1.2 SPECIFICATIONS
Model 272939 272937
Capacity 3,000 lbs 3,000 lbs
Weight 344 lbs 347 lbs
Fork Lowered Height 3.3” 3.3”
Fork Raised Height 31” 31”
Single Fork Width 6.5” 6.5”
Fork Length 45” 45”
Overall Width 21” 27”
Overall Length 60” 60”
Overall Height 48.5” 48.5”
Steering & Load Wheels Polyurethane Polyurethane
Materials and specifications are subject to change without notice.
2. ASSEMBLY & ADJUSTMENT
1) Remove all packing materials carefully.
2) Insert handle (102X) into the socket of cylinder (160) then lock it with pin (108) and two snap rings
(109). Swing handle up and down verify it moves freely. Finally put on spring (105).
3) Open the electrical control case by removing the cover (255). Insert switch wire and plug (184)
hanging down from handle (102) into socket (221) in the case. Insert two fuses of 5 Amp (277) into
two sockets F1/F2.
4) Check the electrical device and elements in the case to make sure there are no loose, dropped
down or broken items.
5) Check oil pipes in the hydraulic system to see if they are screwed on tightly. Open cover (217) to
see if oil is sufficient.
6) Observe the electrical device and elements in the case while pushing the Up-Button (197X) |^| on
top of handle (102X) intermittently to lift the fork. If there are no abnormal effects, continue to push
the Up-Button to lift the fork to its highest position. Then push the Down-Button (197X) |^| to release
the fork to its lowest position steadily.
NOTE: Repeat Step 6 3-4 times to it full travel in order to release possible air in the hydraulic
system and verify the unit is working properly.
7) Close the case with the cover (255) and screw it tightly with screw (256).
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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.
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3. OPERATION
1) Units are designed for working on the flat and even ground.
2) Handle (102X) is used for pulling and steering.
3) When the fork is lifted to its highest position, the unit should not be moved.
4) Push Up-button, the fork goes up. Stop pushing, the fork can stop at any position and won’t slide down.
5) Push Down-Button, the fork goes down. Stop pushing, the fork can stop at any position and won’t slide
down.
6) As a safety valve is set in the pump station, when DGB series lifts a load of 1000kgs (its full capacity),
only mid-cylinder (413) can extend out fully, while the piston rod (406) cannot extract out to prevent
overload.
7) Recharge Battery (254) when the lifting speed is remarkably slow. There only three red (LBD) lighting in
the electric volume gauge (283). To plug recharger (271) into a power socket. Make sure your local
power matches the recharger. Then connect the recharger to Socket (225) in the electrical control case.
The battery will be automatically recharged. In the meantime the yellow (LBD) lights. Recharging
usually takes 4 to 5 hours.
4. SAFETY INFORMATION
1) Operator should read all warning labels and instructions before using this truck.
2) Lifting the fork to its full range 1-2 times before use to release any air in the hydraulic system.
3) Do not use on sloped surfaces.
4) Do not put your hand or foot under the fork or on the moving surface of piston rod (406) and mid-
cylinder (413).
5) Do not lift or transport people on the pallet truck.
6) Do not load goods like fig. 3/B. Center loads on the pallet truck.
7) The safety valve in the pump station will be automatically open when it is overloaded. Under such
circumstance, don’t push up-button. Otherwise that will reduce the lifetime of the pump station.
8) To replace or fill hydraulic oil, the forks should be lowed to the lowest position. The oil to be used
should be clean. The oil condensation point should be ≤ - 20ºC. The motion viscosity: 20-30 cst
(centistokes).
Note: On this product the battery is fastened/tightened down with a bracket. This product should not tip over
if the load or skid is properly or equally positioned on the forks. If the load/skid is half way on the forks,
damage can occur to the scissors or truck. The safety feature with this truck is as a load is being lifted the
scissors feet will become firm with the floor. The truck cannot move forward or reverse.
Figure 3
Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.


Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
5. TROUBLE SHOOTING
No Problem Causes Solutions
1 Forks do not lift when
pushing up-button
1. Switch is out of order
2. Fuse is broken
3. Magnetic switch is out of order
4. Not enough oil
1. Check switch (197X)
2. Replace fuse (277)
3. Check magnetic switch (224)
4. Fill oil
2
Forks do not
descend when
pushing down-
button
1. Switch is out of order
2. Fuse is broken
3. Magnetic switch is out of order
4. Object blocking
1. Check switch (197X)
2. Replace fuse (277)
3. Check magnetic switch (224)
4. Check and remove the object
3 Forks do not lift to
highest position 1. Not enough oil 1. Fill Oil
4 Motor does not
work
1. Motor broken
2. Terminals and inserters are loose
3. Battery worn out
1. Check motor brush
2. Check terminals and inserters
3. Recharge immediately
5 Battery does not
have enough power
1. Not recharged long enough
2. Battery is out of order
1. Recharge for a longer time
2. Fill battery liquid or replace
battery
6 Oil leakage from
Piston Rod & Mid-
cylinder 1. Oil seals broken 2. Replace oil seals
7 Unsteady when unit
is at highest
position
1. The ground is not flat or even
2.. Centrifugal axle is off the ground
1. Operate on flat and even surfaces
2. Adjusting centrifugal axle (7) to
touch ground
NOTE: DO NOT ATTEMPT TO REPAIR THE PALLET TRUCK UNLESS YOU ARE TRAINED AND
AUTHORIZED TO DO SO.

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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.


Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
6. HYDRAULIC CIRCUIT / ELECTRIC WIRING DIAGRAM
Numbers Reference Items Listed in Part Information (Pages 6-7)
6.1 HYDRAULIC CIRCUIT DIAGRAM
Figure 4
6.2 ELECTRIC WIRING DIAGRAM
Figure 5

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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.
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7. FORK FRAME INFORMATION
7.1 FORK FRAME DIAGRAM

Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.

Page7of19
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© Copyright 2019 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.


Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
7. FORK FRAME INFORMATION
7.2 FORK FRAME PARTS LIST
No. WESCO Replacement P/N Description Quantity
1 270064 27”X48” Fork Frame 1
270599 21”X48” Fork Frame
2 270066 Screw 1
3 270067 Nut 1
4 270654 Hydraulic Pump 1
5 270071 Hold Yoke (For 272937 Units) 1
270346 Hold Yoke (For 272939 Units)
6 270072 Wheel Yoke 1
7 270147 Centrifugal Axle 2
8 270074 Spacer 2
9 270078 Steering Wheel 2
10 270079 Snap Ring 8
11 270080 Pin 2
12 270081 Snap Ring 12
13 270082 Bush 2
14 270062 27” Leg Set (For 272937 Units) 1
270555 21” Leg Set (For 272939 Units)
15 270085 27” Leg Set (For 272937 Units) 1
270083 21” Leg Set (For 272939 Units)
16 270086 Bush 2
17 270088 Pin 2
18 270089 Washer 2
19 270090 Nut 2
20 270091 Washer 8
21 270092 Ball Bearing 8
22 270093 Front Wheel 2
23 270094 Wheel Axle 2
24 270095 Roller 4
25 270098 Bush 2
26 270099 Washer 4
27 270139 Spring Washer 2
28 270282 Lock Nut 2
29 270592 Screw 1
30 Steering Wheel Assembly 1
31 270593 Screw 1
32 270594 Nut 1
33 270595 Balls 43
34 270596 Snap Ring 1
35 270597 Bushing 1
36 270598 Needle Bearing 1
36AA 270140 Tension Spring 1
Note: Items 5, 14 & 15 have 2 different sizes, which are dependent on the unit it is being replaced on.

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© Copyright 2018 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.


Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
8. ELECTRIC CONTROL ASSEMBLY INFORMATION
8.1 ELECTRIC CONTROL ASSEMBLY DIAGRAM
(UNITS MANUFACTURED BEFORE 08/2010 OR AFTER 06/2015)
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© Copyright 2018 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.


Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
8. ELECTRIC CONTROL ASSEMBLY INFORMATION
8.2 ELECTRIC CONTROL ASSEMBLY PARTS LIST
(UNITS MANUFACTURED BEFORE 08/2010 OR AFTER 06/2015)
No. WESCO Replacement P/N Description Qty.
202 270619 Battery Terminal (+) 1
203 270624 Battery Terminal (-) 1
204 270625 Terminal 2
205 270626 Washer 2
206 270627 Screw 2
207 270628 Electric Control Case 1
215 270666 Relay 1
216 270860 Control Valve 1
217 Cap 1
218 Oil Tank 1
220 270667
Pump Station Assembly
(Includes Starred Items: 215, 216, 217 and 218) 1
221 270635 Switch Socket 1
222 270636 Fuse Box 2
224 270671 Magnet 1
*225 270637 Recharger Socket, Gray 1
251 270638 Washer 4
254 172190 Battery 1
255 270142 Cover 1
256 270639 Screw 2
*271 270645 Recharger, 12V/10A 1
273 270646 Screw 2
277 270221 Fuse, 5A 2
279 270647 Battery Fixing Screw 2
281 270648 Nut 2
282 270649 High Pressure Oil Pipe 1
283 270650 Voltage Meter 1
284 270672 Washer 2
285 270673 Washer 2
286 270674 Screw 2
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*Units manufactured before 08/2010 or after 06/2015 use P/N's 270637 & 270645.
Units manufactured between 08/2010 & 06/2015 use P/N's 270699 & 270680.

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© Copyright 2016 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.
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8. ELECTRIC CONTROL ASSEMBLY INFORMATION
8.3 ELECTRIC CONTROL ASSEMBLY DIAGRAM
(UNITS MANUFACTURED BETWEEN 08/2010 & 06/2015)

Electric High Lift Truck
(Part # 272937 & 272939)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO HIGH LIFT
TRUCK, READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.