Hydraulic cylinder seal kits are used to seal the gap between different parts of the hydraulic cylinder. The function of hydraulic cylinder seal kits is to prevent oil leakage, to assure the working pressure of the hydraulic system, to maintain its power.
Boom Cylinder seal kit is, as the name suggests, fitted into the boom cylinder.
There are regularly three cylinders for the excavator, boom cylinder, arm cylinder, bucket cylinder.
Arm cylinder is the top one, and it's usually be called as top cylinder;
The bucket cylinder is the one that connects and controls the bucket.
Boom cylinder is the one (or the two) near the cabin. Usually, there is one piece boom cylinder for the small excavator under 10-tun; the bigger excavator's two pieces boom cylinders. But there is an exception too when the driver will remove one piece for a special purpose, say at some particular working place, it is convenient to work by one cylinder. Soft remind: all refit job should be operated by an experienced technician.

When you open and repair the cylinder, please follow below operation:

1. Take off the cylinder from the machine.

2. Remove the head assembly and the rod assembly from the stick cylinder group.

3.If it always happens that the seal kit not perform well soon after it fitted, there maybe problem of the cylinder assembly itself. It is better to check the cylinder assembly whether need to change it.

4.Meansure the seal kits before fitting.

5.Install the seals.

After fix the cylinder assy, test it first before reinstall the stick culinder group on the machine.

Part No

Parts name

Part No

Parts name

101-63-02031

CYLINDER ASS'Y,ANGLE

101-63-55242

CYLINDER

707-76-35010

BUSHING

04065-05520

RING,SNAP

07042-20108

PLUG

07020-00675

FITTING,GREASE

707-29-70920

HEAD,CYLINDER

07177-03525

BUSHING

707-51-35210

PACKING,ROD

175-63-75190

SEAL,DUST

07179-12047

RING,SNAP

07000-12065

O-RING

07001-02065

RING,BACK-UP

07000-02070

O-RING

101-63-55221

ROD,PISTON

07020-00900

FITTING,GREASE

707-36-70930

PISTON

707-44-70070

RING,PISTON

07156-00710

RING,WEAR

01580-02419

NUT

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