COGENG 991/00012 991-00012 99100012 JCB Boom Arm Stick Swing Cylinder Seal Kit

PRODUCT IDENTIFICATION

CROSS REFERENCE GUIDE

TECHNICAL SPECIFICATIONS

Cylinder Specifications

Material Specifications

Decompose pictures

Parts list

Installation decomposition diagram
Completely depressurize hydraulic system and secure all hydraulic functions
Stabilize machine on level ground with boom properly supported
Implement comprehensive lockout-tagout procedures
Wear appropriate PPE including hydraulic fluid protection
Professional Installation Procedure:
Pre-Installation Preparation:
Thoroughly clean cylinder exterior and connection points
Establish clean, organized work environment
Verify complete kit contents against component checklist
Document existing cylinder condition and configuration
System Disassembly:
Mark component orientation for precise reassembly
Photograph seal positions and directional orientations
Use specialized tools for seal removal without surface damage
Maintain strict contamination control throughout process
Component Inspection & Validation:
Inspect rod surface for wear, scoring, or corrosion
Check cylinder bore for damage or irregularities
Examine gland and piston components for wear patterns
Verify all surfaces are clean and damage-free
Precision Seal Installation:
Liberally lubricate all seals with clean hydraulic fluid
Use certified seal installation tools only
Ensure correct directional orientation of all dynamic seals
Verify complete and proper seating in all grooves
Reassembly & Performance Verification:
Reassemble following documented orientation marks
Apply manufacturer-specified torque sequences
Conduct initial cycling without load to seat seals
Perform comprehensive leak and function testing

Frequently Asked Questions
A. When will get the items after I place order?
Q. Once your payment is confirmed,we will arrange the goods within 1~4 days; if not in stock, we will inform you before placing the order?

A. If I only know the excavator model, but can not offer parts No.,what should I do ?
Q. If possible, you can send us pictures of old products, nameplate or the size for reference.

A. How can you guarantee the quality??
Q. We will 100% test the goods before delivery. We also support video inspection.

A. How long will it take to delivery to my address??
Q. The normal delivery time is 3-7 days, depending on which country you are in.?

A : Which delivery method will you choose?
Q : By sea, air or express(DHL,Fedex,TNT, UPS, EMS etc.)，Sometimes we will arrange as the customer's demand.

A: What's package? Can you give me the package according my requirement??
Q. We usually packed by standard exported box or carton. And yes we can pack as per your requirement.

A: Can the price be cheaper?
Q: Of course, you will be offered a good discount for a big amount.

A: Why should I choose to buy from you?
Q:Our advantages: 100% quality assurance, develop and manufature follow original ones;Quick response within 24 hours; Small order allowed;Reasonable stock and timely delivery;Neutral packing, customized packing are allowed. Positive customer feedback from abroad market;Excellent after-sales service.
A : Which payment terms can you accept?
Q : Paypal. Western Union, Bank Transfer, T/T...

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