Highlight:
Excavator O-Ring Kit D155A-6
, D155A-5 O-Ring Seal Kit
, Excavator Spare Parts O-Ring
1. Quick Details of seal 07000-73050:
| Part NO. |
07000-73050 |
| Machine |
Crawler Dozer |
| Size |
5.7 mm thickness |
| Material |
SILICON |
| Oil seal type |
O RING |
2. 07000-73050 parts on group :
| NO. |
PART NO. |
PRAT NAME |
QTY |
| 1 |
195-15-01013 |
TRANSMISSION ASSEMBLY |
1 |
| 2 |
195-15-01012 |
TRANSMISSION ASSEMBLY |
1 |
| 3 |
195-15-01101 |
CASE ASSEMBLY |
1 |
| 4 |
07043-01019 |
PLUG |
4 |
| 5 |
07043-00617 |
PLUG |
1 |
| 6 |
09608-05080 |
PLATE¤ NAME,NAME (LIMITED SUPPLY) |
1 |
| 7 |
04418-13060 |
SCREW |
4 |
| 8 |
195-15-31311 |
SLEEVE |
4 |
| 9 |
07000-73028 |
O-RING (KIT) |
4 |
| 10 |
07000-73050 |
O-RING (KIT) |
4 |
| 11 |
07000-73025 |
O-RING (KIT) |
5 |
| 12 |
07000-73035 |
O-RING (KIT) |
3 |
| 13 |
195-15-36530 |
PLUG |
1 |
| 14 |
195-15-41710 |
PLATE |
2 |
| 15 |
01010-52055 |
BOLT |
4 |
| 16 |
01643-32060 |
WASHER |
4 |
| 17 |
195-15-01110 |
CASE ASSEMBLY |
1 |
| 18 |
07043-01019 |
PLUG |
4 |
| 19 |
04530-02030 |
BOLT,EYE |
1 |
| 20 |
195-15-43150 |
PLATE |
1 |
| 21 |
04071-00290 |
RING,SNAP |
1 |
| 22 |
07000-72085 |
O-RING (KIT) |
3 |
| 23 |
07000-73050 |
O-RING (KIT) |
2 |
| 24 |
07000-73028 |
O-RING (KIT) |
1 |
| 25 |
195-15-39620 |
O-RING (KIT) |
1 |
| 26 |
04020-01638 |
PIN,DOWEL |
1 |
| 27 |
01010-51645 |
BOLT |
18 |
| 28 |
01643-31645 |
WASHER |
18 |
| 29 |
07000-73030 |
O-RING (KIT) |
1 |
| 30 |
07000-05310 |
O-RING (KIT) |
1 |
| 31 |
07000-73050 |
O-RING (KIT) |
2 |
| 32 |
07000-72085 |
O-RING (KIT) |
2 |
| 33 |
198-15-29610 |
O-RING (KIT) |
1 |
| 34 |
01144-51640 |
STUD |
1 |
| 35 |
01580-11613 |
NUT |
1 |
| 36 |
01010-51645 |
BOLT |
2 |
| 37 |
01010-51660 |
BOLT |
16 |
| 38 |
01643-31645 |
WASHER |
19 |
3. 07000-73050 picture:
4. Service part number :
| PART NO. |
PART NO. |
Part NO. |
| 707-99-44290 |
707-51-45640 |
707-99-75600 |
| 707-35-91750 |
707-51-85630 |
707-51-14030 |
| 707-35-91840 |
707-51-85640 |
707-51-14080 |
| 707-35-91850 |
707-51-85650 |
707-51-14110 |
| 707-35-92020 |
707-51-90630 |
707-51-14130 |
| 707-35-92050 |
707-51-90640 |
707-51-16030 |
| 707-35-92300 |
707-51-90650 |
707-98-27100 |
| 707-35-92600 |
707-51-95630 |
707-51-16130 |
| 707-35-92900 |
707-51-95640 |
707-51-17030 |
| 707-35-93020 |
707-51-95650 |
707-51-17130 |
| 707-35-99500 |
421-63-H0P12 |
707-51-18030 |
| 707-35-99510 |
707-51-10630 |
707-51-18130 |
| 707-35-99600 |
707-51-10640 |
707-51-19030 |
| 707-51-75640 |
707-51-10650 |
707-51-20250 |
| 707-98-61100 |
707-98-60110 |
707-35-52700 |
5. FAQ
Q: What are these O-rings and what do they do?
A: These are elastomeric O-rings, used in both static and dynamic applications to create a leak-proof seal between mating parts. They prevent fluid or gas leaks, maintain pressure integrity, and block contaminants from entering hydraulic systems, pumps, engines, and other equipment.
Q: What material are these red O-rings typically made of?
A: The red color most commonly indicates silicone rubber (VMQ). Depending on the specific application, they can also be a fluorosilicone (FVMQ) or high-temperature nitrile (NBR) variant, but silicone is the standard material for red O-rings.
Q: What common mistakes cause these O-rings to fail early?
A: The most frequent causes are improper installation (twisting, pinching, or overstretching), chemical incompatibility with the system fluid, extreme temperatures leading to hardening or brittleness, scratches on mating surfaces, and using the wrong size or hardness (durometer) for the application.
Q: What are the key properties of silicone rubber for this seal?
A: Silicone offers excellent heat resistance (operating range roughly -60°C to +200°C), great flexibility even at low temperatures, and strong resistance to ozone, weathering, and aging. It works well with hot air, steam, and non-polar fluids, though it is not recommended for use with most mineral oils or fuels.
Q: How do I install this O-ring correctly?
A: Start by thoroughly cleaning the O-ring groove and mating surfaces to remove dirt, burrs, or old seal residue. Lightly lubricate the O-ring with a compatible fluid or grease to ease installation. Carefully fit the seal into the groove, making sure it does not twist, overstretch, or get pinched. When assembling components, use proper tools to avoid damaging the seal edges.
Q: What common issues cause O-ring failure?
A: Common causes include improper installation (twisting, pinching, or overstretching), chemical incompatibility with the fluid, excessive heat or cold leading to hardening or brittleness, surface scratches on mating parts, and using the wrong size or durometer.
6. Exhibition and Wearhous
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