707-44-60070 7074460070 RING,PISTON OF D135A-2 D21Q-7-M
1. Quick Details of seal 707-44-60070:
| Part NO. | 707-44-60070 |
| Machine | Excavator |
| Size | OEM |
| Material | NBR |
| Type | RING SEAL |
2. 707-44-60070 parts on group :
| NO. | PART NO. | PRAT NAME | QTY |
| 1 | 721-11-60810 | CYLINDER | 1 |
| 2 | 02896-11009 | O-RING (KIT) | 2 |
| 3 | 07040-11007 | PLUG | 2 |
| 4 | 07002-11023 | O-RING (KIT) | 2 |
| 5 | 707-46-03040 | BUSHING | 1 |
| 6 | 04065-04718 | RING,SNAP | 2 |
| 7 | 07020-00000 | FITTING,GREASE | 1 |
| 8 | 707-29-60740 | HEAD,CYLINDER | 1 |
| 9 | 07177-02525 | BUSHING | 1 |
| 10 | 707-51-25210 | PACKING,ROD (KIT) | 1 |
| 11 | 707-56-25510 | SEAL,DUST (KIT) | 1 |
| 12 | 07179-12037 | RING,SNAP | 1 |
| 13 | 07000-12055 | O-RING (KIT) | 1 |
| 14 | 07146-02056 | RING,BACK-UP (KIT) | 1 |
| 15 | 07000-12060 | O-RING (KIT) | 1 |
| 16 | 707-58-25870 | ROD,PISTON | 1 |
| 17 | 07020-00000 | FITTING,GREASE | 1 |
| 18 | 707-36-60360 | PISTON | 1 |
| 19 | 707-39-60190 | RING,WEAR (KIT) | 1 |
| 20 | 707-44-60070 | RING,PISTON (KIT) | 1 |
| 21 | 707-67-18040 | NUT,NYLON | 1 |
| 22 | 707-86-39500 | TUBE | 1 |
| 23 | 02896-11009 | O-RING (KIT) | 1 |
3. 707-44-60070 picture:
4. Service part number :
| PART NO. | PART NO. | Part NO. |
| 707-51-14110 | 707-98-25870 | 707-98-36630 |
| 707-98-64410 | 707-98-64410 | 707-98-66410 |
| 707-98-64420 | 707-98-37680 | 707-98-56210 |
| 707-98-64450 | 707-98-64450 | 707-98-56600 |
| 707-98-25910 | 707-98-36700 | 707-98-56610 |
| 707-99-64150 | 707-99-77250 | 707-51-95650 |
| 707-99-64152 | 707-99-77300 | 707-98-26441 |
5. FAQ
Q: What kind of construction machine can part number 707-44-60070 be applied to?
A: Part number 707-44-60070 piston seal ring is applicable for excavator hydraulic boom cylinder.
Q: Could you tell me the part name and product category of 707-44-60070?
A: The part name of 707-44-60070 is piston seal ring and it falls into piston seal ring category.
Q: What is the raw material of this piston seal ring?
A: It is composed of PTFE sliding seal and NBR rubber back-up ring for reliable sealing.
Q: What is the main purpose of installing this piston seal ring?
A: It prevents internal hydraulic oil leakage inside the cylinder to maintain stable cylinder thrust.
Q: Which position of the hydraulic cylinder is this piston seal ring installed on?
A: It is assembled in the piston groove of excavator boom hydraulic cylinder.
Q: What working temperature range can this piston seal ring withstand?
A: It can work normally within the common temperature range of hydraulic oil for excavators.
Q: What should we pay attention to during installation of this seal ring?
A: Avoid sharp edges scratching the PTFE surface when putting it into the piston groove.
Q: What failure sign can we observe when this piston seal ring is damaged?
A: The boom will sink gradually and the digging force of the excavator will decrease.
Q: Is this piston seal ring sold separately or supplied as part of a seal kit?
A: It can be sold individually, and it is also available as one component of full seal repair kit.
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