SLG SD55 User manual

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Manual Balanced Crane
Model: SD55
Instruction Manual
Note: Operator must read this instruction manual before using the product and follow
the requirements during operating.
VERSION ONE 11/2015

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Contents
1. Product Main Components……………………….. 3
2. Specification ……………………………………….. 3
3. Assemble and adjustment ……………………… 4
4. Safety Operation ………………………………… ..5
5. Warning …………………………………………. .. 6
6. Operating Instructions………………………………6
7. Daily Inspections ……………………………………..6

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PLEASE READ THIS INSTRUCTION MANUAL COMPLETELY BEFORE USING.
THOROUGHLY UNDERSTAND AND FOLLOW ALL SAFE OPERATION &
WARNING INSTRUCTIONS. IF THIS MANUAL IS LOST, PLEASE CONTACT YOUR
LOCAL SUPPLIER FOR ANEW COPY. IF THE WARNING/CAUTION STICKERS ON
THE PRODUCT IS LOST, PLEASE CONTACT YOUR LOCAL SUPPLIER FOR NEW
ONES.
1. Product Main Components
1
2
3
4
5
10
6
9 8 7
Drawing 1
1.extension arms 2.hooks.3.cylinders 4.stands 5.front wheels 6.base chassis 7.brake
8.countbalance case 9.steering wheels 10.handle
2、Specification
Drawing 2
MODEL
DSD55
RATED
CAPACITY
P1
550kg
P2
400kg
P3
300kg
P4
220kg
P5
150kg
Motor Power/
Voltage (KW/V）
0.8Kw/12V
Battery Capacity
（Ah）
60Ah
Operating
System
S3=3.0%
NET WEIGHT
(KG)
530kg
P1 P2 P3 P4 P5

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3、Assembly and Adjustment
3.1 Remove the package carefully, avoiding severe vibration and significant tilt.
3.2 Turn the stands To the upright position , insert the pin to fix both parts, then lock them with
the spring pin(as drawing 3-1);
3.3 Carry the counterbalance case on the base chassis, fix them with 4PCSBolts((in the spare
parts bag)(as drawing 3-2).
3.4 Connect the handles and the steering wheels with 2 PCS bolts .Tighten the bolts at both
sides firmly.(as drawing 3-3).
3.5 Check if all fasteners of the parts are tightened firmly.
Products could be used only if finishing all above mentioned inspections without abnormal.
1 2 3 4 1 2 3
Drawing 3-1 drawing 3-2
1
2
3
4
drawing 3-3
1、stands 2、pin、3. Spring pin
4、base chassis
1、.weight box
2、base chassis 3、bolt
1、handle2、bolt 3、supporting seat
4、steering wheels

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4、Safe Operation
4.1 The Operator Requirements
The lifter must be operated by professionals who can demonstrate the product lifting operation to
users and can instruct vividly how to operate.
Operator must be trained and fully understand the operation of product lifting and self-propelling,
as well as all safety requirements.
4.2 Forbidden Use by Unauthorized Person
During operations, the operator has responsibility to prevent unauthorized person using the
product. The product is strictly forbidden to carry or lift people.
4.3 Failure and Fault
In case of any failure or fault (e.g. wheel worn-out or brake fault and etc.), please stop using the
product immediately.
4.4 Repair
Without professional training and specific authorization, the operator is forbidden to repair or
replace any spare parts of the product. Any change of installation position of switches and
safety devices is strictly forbidden.
All spare parts from original manufacturer are strictly inspected and completely qualified. They
are safe and reliable for product operation. The replaced parts including oil must be disposed
according to local related environmental protection regulations.
4.5 The product will bring potential dangerous to people or the area during
lifting and lowering, unauthorized person should be away from the danger area.
4.6 Working in Hazardous Environments
When the product be used in high risk area, it should be added protective device.
4.7 Safety Warning Signs
The safety warning signs and precautions mentioned in the manual are very important.
4.8 Keep Distance
During operating the product, unauthorized person should keep an appropriate distance away
from it.
4.9 Ground Checking
Carefully check whether the ground is flat and solid enough for moving before using the
product.
4.10 Loads Requirement
In case the load has to be removed, lower the load and jib extension to the lowest possible
point before moving. Caution:moving should be slowly and steadily
4.11 Do not load the crane beyond the rated capacity for each specified lift arm position as indicated in the
label.
4.12 Before operating the crane ensure the lift arm is securely positioned by the pin.The load hook
is provided with a latching mechanism. Ensure it works properly.
4.13 To lift the load in a well balanced and stable way make sure the center of gravity remains
always inside the crane base
4.14 Screw on the brake(NO. 7 ),before operating.
4.15 Do not allow the load to swing or drop violently when moving.

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5.Warning
5.1DO NOT overload;
5.2 When moving with load, the hook should be at the lowest position.
5.3 U-turning or lifting loads is prohibited on a slope.
5.4 DO NOT load people;
5.5 DO NOT operation under the extension arm.
5.6 STOP operation immediately once the cargo is unstable.
5.7 STOP operation when the hydraulic oil temperature is too high.
5.8 DO NOT adjust the safety valves in the power pack.
5.9 Reducing the balancing weight is prohibited.
6. Use and operation
6.1 Before using the crane, it is necessary to purge air from the valve system of the hydraulic unit.
6.2 This can be done by releasing the valve, then pumping the hydraulic jack several times.
6.3 Closing the valve, the crane is now ready to be used, pump the hydraulic unit to raise the load,.
6.4 Lowering the load, release the valve. Counterclockwise slowly, the load can be lowered
smoothly. Quick-releasing is strictly prohibited.
7. Daily Inspections
7.1 Lubricate all moving parts at regular intervals.
7.2 Always keep the crane clean and protected from aggressive conditions.
7.3 Check the oil level of the hydraulic unit with the piston fully retracted. Top up if necessary.
IMPORTANT : An excess of oil will render the crane inoperative.
7.4 Use only hydraulic oil, HL or HM types, with an ISO grade of cinematic viscosity of 30 cst at 40
ºC or an Engler viscosity of 3 at 50ºC.
VERY IMPORTANT : never use brake fluid.
7.5 When ordering spare parts, please state the series number and the capacity of the crane.