CRRC MS-2624PT - User Manual

Questions and Answers

A
Anthony JonesAug 13, 2025
What to do if CRRC MS-2624PT Tools fail to operate when the trigger is pressed?
- O
  owilsonAug 13, 2025
  If your CRRC Tools fail to operate when the trigger is pressed, it could be due to several reasons. The hydraulic system might have failed (refer to the Manual of hydraulic unit). Alternatively, there might be a loose or faulty hose coupling; in this case, check and tighten the connection. A damaged trigger assembly could also be the cause, requiring you to replace the trigger.
C
Crystal SmithAug 17, 2025
Why are pull grooves on fastener pintail stripped during PULL circle with CRRC MS-2624PT Tools?
- K
  Kelly HernandezAug 17, 2025
  If the pull grooves on the fastener pintail are stripped during the PULL circle when using CRRC Tools, several factors could be the cause. It could be that the operator is not sliding the anvil completely onto the fastener pintail, so operate the tool correctly, as per section 3.4. Another reason might be an incorrect fastener grip, so check the grip and replace it with the proper rivet. Other potential causes include worn or damaged jaw segments (replace the clamping jaws), foreign debris in jaw grooves (clean the jaws), excessive sheet gap (correct the gap), or excessive PULL pressure (adjust the pull pressure as per section 2.1).
J
Jason FrankAug 21, 2025
What to do if CRRC MS-2624PT operate erratically and fail to install fastener properly?
- M
  Maria JenkinsAug 21, 2025
  If your CRRC Tools operate erratically and fail to install the fastener properly, it could be due to low or erratic hydraulic pressure or air in the system (refer to the Manual of hydraulic unit). Another possible cause is a damaged or worn Piston O-ring in the tool, which would require replacing the O-ring. Excessive wear on the sliding surfaces of tool parts or on internal cylinder surfaces could also be the reason; in this case, replace the cylinder or parts.
J
Justin HughesAug 25, 2025
Why do my CRRC MS-2624PT Tools leak hydraulic fluid?
- M
  Michael ValentineAug 25, 2025
  If your CRRC Tools leak hydraulic fluid, it's likely due to defective tool O-rings or loose connections at the tool. Replace the O-rings or tighten the hose to resolve this issue.
T
theresastricklandAug 28, 2025
Why does hydraulic fluid overheat in CRRC Tools?
- D
  Dylan EvansAug 28, 2025
  If the hydraulic fluid in your CRRC Tools overheats, it indicates that the unit is not operating properly or is running in reverse. Consult the Manual of hydraulic unit for troubleshooting steps.
C
cindy15Sep 1, 2025
Why do CRRC MS-2624PT operate in reverse?
- H
  Holly BrownSep 1, 2025
  If your CRRC Tools operate in reverse, the hose connections between the hydraulic unit and the tool are likely reversed. Check the hose connections and adjust them to the correct orientation.
S
Susan RichardsonSep 5, 2025
Why is the collar not completely swaged with CRRC MS-2624PT Tools?
- C
  Courtney RuizSep 5, 2025
  If the collar is not completely swaged when using CRRC Tools, it could be due to improper tool operation. Please re-read this manual and ask Meishan if you are not clear on any sections. Another possible cause is a scored anvil, which would require replacing the anvil.
D
Dorothy BridgesSep 8, 2025
Why do CRRC Tools "hang up" on swaged collar of fastener?
- J
  Jamie ReedSep 8, 2025
  If your CRRC Tools "hang up" on the swaged collar of the fastener, it could be due to improper tool operation. Please re-read this manual and ask Meishan if you are not clear on any sections. Another potential cause is the jaw being in the wrong position; check and re-install the spring in this case.

This document describes the MS-2624PT Hydraulic Installation Tool, developed by Meishan CRRC Fastening System Co., Ltd., designed for installing 1/2" blind oversized rivets.

Function Description

The MS-2624PT is a hydraulic installation tool specifically engineered for fastening 1/2" blind oversized rivets. It operates by applying hydraulic pressure to pull and swage the rivet, ensuring a secure and consistent installation. The tool is characterized by its long service life, lightweight design, ease of operation, and low noise output. It utilizes a dedicated nose assembly, the MS-5106, which is integral to its fastening capability.

Important Technical Specifications

The MS-2624PT tool has the following key specifications:

Part Number (Tool): MS-2624PT
Part Number (Nose): MS-5106
Operating Temperature Range: 0-60 °C
Noise Level: 45±3 dBA
Max. Vibration: 2 m/s²
Weight of Tool: 10 kg
Effective Displacement: 42.8 mm
PULL Pressure: 40-45 MPa
PUSH Pressure: 15-20 MPa
Standards: EN 2006/42/EG

The tool's body structure comprises several components:

Piston: MS-2624PT-02
Cylinder Assembly: MS-2624PT-01
Front Gland: MS-2624PT-07
End Cap: MS-2624PT-03
Retainer: MS-2624PT-13
Handle: MS-2624PT-04
Oil Hose: MS-2624PT-14
Trigger Switch Assembly: MS-2624PT-15
Wiper Seal Assembly: MS-2624PT-09

The nose assembly (MS-5106) itself consists of:

Anvil: MS-5106-01
Collect Assembly: MS-5106-02
Rubber Jaw Assembly: MS-5106-03
Guiding Sleeve: MS-5106-04
Spacer Tube: MS-5106-05
Ejector: MS-5106-06
Spacer: MS-5106-07
Retaining ring 56 for shaft: GB/T 894
Retaining ring 45 for hole: GB/T 893

Usage Features

The operation of the MS-2624PT tool involves several steps, emphasizing safety and proper setup:

Before Startup:

Nose Assembly Selection: Choose the correct nose assembly for the specific fastener.
Hydraulic System Connection: Turn off the hydraulic system and disconnect power. Connect the tool hoses to the tool.
Control Switch Connection: Connect the tool's control switch electrical cord to the hydraulic unit.
Power On and Fluid Circulation: Connect the hydraulic unit to power, turn it on, and press the tool's trigger a few times to circulate hydraulic fluid. Check for leaks.
Pressure Adjustment: Check and adjust PULL and PUSH pressures to the proper settings if necessary.

Nose Assembly to Tool: The nose assembly is a critical component that needs to be correctly assembled:

Install the ejector into the anvil's hole.
Install the guiding sleeve into the rubber jaw's hole.
Install the rubber jaw into the collect assembly.
Use circlip pliers to install retaining ring-45 to the rear end of the guiding sleeve, fixing it in the collect assembly.
Thread the collect assembly to the piston.
Tighten the 3 set screws from the piston.
Install the anvil into the collect assembly.
Lock in the anvil and the cylinder assembly with retaining ring-56.

Installation Sequence:

Insert the rivet into the hole.
Insert the nose into the pintail of the rivet and hold it against the collar of the rivet.
Press and hold the trigger to swage the collar.
Release the trigger when the rivet breaks.

Safety Rules:

Always read the entire manual carefully.
Keep the tool away from flammable liquids, gases, dust, fire, and heat sources.
Do not operate around children or unauthorized personnel.
Maintain focus and attention; do not operate under the influence of fatigue, drugs, alcohol, or medical treatment.
Always wear safety goggles, dust mask, anti-skid shoes, safety helmet, and ear protection.
Dress properly; avoid loose clothes or jewelry, and keep hair away from moving parts.
Do not drop or abuse the tool.
Keep tools away from children and unauthorized users.
Inspect moving parts for damage before use.
Use proper tools, nose assemblies, and accessories from Meishan.
Ear protection is required.
Inspect the collect assembly for wear, cracks, or visible damage before use.
Hold the tool firmly with both hands.
Maintain a balanced body position and secure footing.
When operating at height, ensure no one is beneath you.
Use the correct nose assembly for different rivet types.
Avoid continuous running for more than 10 minutes; take a 3-minute break after 10 minutes of continuous use.

Maintenance Features

Proper maintenance is crucial for the tool's longevity and performance.

Cautions:

Disconnect the tool from the power source before any maintenance.
When disassembling the tool (and at regular intervals), replace all seals, wipers, and back-up rings.
Check the cylinder assembly, piston, and unloading rod for scratches, excessive wear, or damage, replacing components as needed.
Regularly check and clean the nose assembly for foreign debris or dirt.
Inspect the nose assembly and tool daily before use.
Contact Meishan or an authorized service center for repair and maintenance questions.

Product Service Kit and Performance Parameters (Consumables):

Anvil (MS-5106-01): Service life of 20,000 pulls.
Rubber Jaw (MS-5106-03): Service life of 5,000 pulls.
Ejector (MS-5106-06): Service life of 5,000 pulls.

Configuration List: The standard package includes:

Hydraulic tool x1
Nose assembly x1

Replacement of Nose Assembly: The nose assembly is a moving and consumable part. For replacement, refer to section 2.3 for the detailed structure diagram. Disassemble the nose assembly in the opposite order of assembly (section 3.2).

Replacement of Other Components: For damage to other parts, contact the client service center of Meishan CRRC Fastening System Co., Ltd.

Troubleshooting Guidance: The manual provides a comprehensive troubleshooting guide for common issues:

Tool fails to operate: Check hydraulic system, hose coupling, and trigger assembly.
Tool operates in reverse: Check hose connections.
Tool leaks hydraulic fluid: Replace O-rings or tighten hoses.
Hydraulic fluid overheats: Check hydraulic unit operation.
Tool operates erratically or fails to install fastener properly: Check hydraulic pressure, piston O-ring, sliding surfaces, and ensure anvil is correctly positioned on the pintail.
Pull grooves on fastener pintail stripped: Check fastener grip, jaw segments, jaw grooves for debris, sheet gap, and PULL pressure.
Collar not completely swaged: Check tool operation and anvil condition.
Tool "hangs up" on swaged collar: Check tool operation and anvil condition.
Jaw in wrong position: Check and re-install the spring.

In case of unsolvable problems, disconnect power and consult Meishan's technicians.

Warranty and Life Cycle:

Cylinder ASSY (MS-2624PT-01), Piston (MS-2624PT-02), Handle (MS-2624PT-04), Pipe (MS-2624PT-14): 1 year/50,000 pulls (whichever comes first).
Seals Kit (N/A), Trigger Switch (MS-2624PT-15): 20,000 pulls.
Anvil (MS-5106-01), Collect ASSY (MS-5106-02): 20,000 pulls life cycle.
Rubber Jaw (MS-5106-03): 5,000 pulls life cycle.

Warranty and life cycle are based on standard operation and proper maintenance without artificial damage.

Requirements on replacing consumables and wear parts:

Replacement must be performed by a trained bench worker using specific tools.
Replacing wear parts does not re-calculate the warranty period of TOOL components.
If the tool fails during the warranty period, send it to Meishan or an authorized service center for repair.

Requirements for use:

Check for obvious cracks on the tool.
Hold the trigger depressed for 30 seconds, then depress a few times to cycle the tool and circulate hydraulic fluid, observing for leaks.
Check and confirm correct pressure.