Hydraulic rubber sleeve changing machine（ZC-3512A)instructions

1,Before using the device, please read the instruction manual carefully for proper operation.
2,During use, do not allow children to approach the device or unplug any connections. Pay attention to the operation of the device and do not operate it without training.

3. During maintenance and after construction, the power must be turned off. If the power is turned on for
   maintenance or repair of the circuit, do not touch any conductive parts in the equipment Part of it may cause electric shock.
4. Please use a safe power supply that meets the equipment requirements ( 380V/50-60Hz) to ensure
   that the machine is working properly. If there is a malfunction, please immediately cutoff the power and contact the manufacturer.
   Equipment introduction

The hydraulic press for disassembling and assembling automotive parts is a comprehensive technology that combines similar products. It can be used for stamping and disassembling automotive parts.
It is composed of main components such as hydraulic system, electronic control system, frame structure, and multifunctional module. It adopts an integrated oil circuit design and is driven by a motor to output power, pushing the oil cylinder piston up and down. With the combination of multiple molds, the hydraulic system
applies pressure to achieve the installation and disassembly of workpieces
For the disassembly and assembly equipment of automotive parts (swing arm rubber sleeves, bearings) and
other accessories, the equipment is made of high-strength steel structural materials to ensure the accuracy
of hydraulic pressure and the quality and stability of the equipment. This equipment has high working efficiency, simple operation, safety and reliability, and easy and fast mold replacement.

Operating voltage： 380V
Motor power： 2.2kw
Hydraulic cylinder diameter： 90mm
Hydraulic oil filling amount： 30L
Response speed： 0.1S
Maximum pressure： 20000kg
Hydraulic cylinder stroke：300mm
Net Weight： 342kg

Gross Weight： 386kg

Dimensions： 7356671925mm

Package dimensions ：8177202043mm

Mold head： 54
Support plate： 3
Limit screw： 4
Circular cushion block： 4
Hook： 50
Led lamp： 1
Hose machine： 1 control pedal： 1

Structural diagram    

Mold head

Support plate

Circular cushion block

Hydraulic controller

Led lamp

Hydraulic cylinder Power indicator
Power switch

Control pedal wheel

1,The first time you use the equipment,
you must add 30 liters of 46# hydraulic oil.

2,Connect to the 380-volt power supply mainline

3,Step on the control pedal and continue to run up and down until the maximum

stroke is reached multiple times. Perform air treatment on the hydraulic cylinder
pipeline until the equipment runs smoothly up and down!

4,The equipment should be placed in the
designated position, and it is recommended to turn the locking switch of the wheels to ensure the balance and stability of the
equipment.

Fixed knob

1,Turn on the power switch,
the power indicator light will turn on.

2,According to the swing arm structure and rubber sleeve size, select the appropriate
support drag plate and match it with the
rubber sleeve hydraulic mold pressure head.

Positioning pin

Mold head

Supporting balance drag board

3,Step on the control pedal and slowly
lower it to ensure that the mold pressure head is in the same center position as the workpiece. Slowly press out the rubber
sleeve and retract the mold head. During the pressing process, do not put your
hands deep into the hydraulic range.

4,During the construction process, it is
necessary to step slowly and observe while operating to avoid the workpiece being
crushed

5,Different workpieces require the selection of appropriate combination schemes based on the construction space

6,After the construction is completed, turn off the power switch and organize the
equipment back to its original position

Equipment maintenance  

1,Please regularly check the hydraulic oil. If the hydraulic oil turns black, please replace it in a timely manner.

2,Please regularly check and tighten the fixing screws of the hydraulic cylinder and hydraulic oil pipe..

List of accessories    

Serial No Model Specifications Quantity
1 30 φ 30 mm 1
2 31 φ 31 mm 1
3 32 φ 32 mm 1
4 33 φ 33 mm 1
5 34 φ 34 mm 1
6 35 φ 35 mm 1
7 36 φ 36 mm 1
8 37 φ 37 mm 1
9 38 φ 38 mm 1
10 39 φ 39 mm 1
11 40 φ 40 mm 1
12 41 φ 41 mm 1
13 42 φ 42 mm 1
14 43 φ 43 mm 1
15 44 φ 44 mm 1

List of accessories    

Serial No Model Specifications Quantity
46 75 φ 75 mm 1
47 76 φ 76 mm 1
48
77 φ 77 mm 1
49 78 φ 78 mm 1

50 79 φ 79 mm 1
51 80 φ 80 mm 1
52 90 φ 90 mm 1
53 100 φ100mm 1
54 inside diameter 3020mm outside diameter 8020mm 1
55 inside diameter 4020mm outside diameter 9520mm 1
56 inside diameter outside diameter 6020mm 11520mm 1
57 inside diameter 8020mm outside diameter 13520mm 1
58 22522530mm 1
59 22522530mm 1
60 22522530mm 1

Common troubleshooting  

Common faults Reason for malfunction Solution

Insufficient
system pressure The pressure of the over且ow valve is set too low Adjust the pressure of the over且ow valve again
The pressure regulating spring of the over且ow valve is deformed Replace the pressure regulating spring
The O-ring of the directional valve is damaged Replace O-ring
The sealing ring inside the hydraulic cylinder is damaged Replace the sealing ring
There is a leak in the pipeline check for any damage to the pipeline and re tighten the joints

Shaking during work
There is air in the hydraulic system check the oil level in the hydraulic oil tank for bubbles, eliminate the
possibility of air entering, step on the control pedal, and run back and forth at the fastest speed and maximum stroke to exhaust the air in the cylinder.
Insu伍cient hydraulic oil in the fuel tank Add hydraulic oil to the standard level
The oil pump is not supplying oil normally Repair or replace the oil pump
Over且ow valve vibration or system resonance check the fixed system accessories and eliminate resonance

High system noise Does the hydraulic oil meet the requirements Replace standard hydraulic oil
Hydraulic oil shortage, air in the system Add hydraulic oil and drain air
The solenoid valve core is too dirty and stuck clean the solenoid valve core or replace the solenoid valve assembly
The power indicator light is not on Loose and detached wiring check and tighten the input line
Leakage protection switch disconnected Turn on the leakage protection switch or replace it

The oil pump motor is not working overheating switch abnormal check or replace the overheat switch
contactor abnormal check or replace the contactor

Note: If none of the above steps can be processed, please contact customer service for assistance

After-sale service  

Aertificate of conformity
Product Name
Hydraulic rubber sleeve replacement machine
Product Model
Zc-3512A

Manufacture Date
May 22, 2025 Warranty Period one year

Assembly Group
2 Inspector
05
The product has passed the inspection and is allowed to leave the factory

Warranty Card

Product Name
Hydraulic rubber sleeve replacement machine Product Model
ZC-3512A
Distributor Sale Date
User Name Contact Information

User Notice:

1. After purchasing the product, users need to mail the product warranty card receipt and invoice copy to our company within one month for archiving and convenient contact for after-sales
   maintenance services.
2. From the date of purchase after use, this card comes with a one-year warranty.
3. When using the equipment, it is necessary to follow the instructions in detail. During the warranty period, any malfunctions caused byproduct quality will be repaired or replaced by our company’s
   free after-sales service.
4. Equipment failure caused by transportation damage, improper operation, or self disassembly will not be covered by warranty!