3512 and 3516 EUI Engines and 784B, 785B, 789B and 793B Off-Highway Truck/Tractors Caterpillar


Engine Oil Scavenge Pump

Usage:

793B 1HL


图 1g03836640
仰视图


图 2g03836639
剖面 A-A


注意

操作之前,必须使用干净的发动机机油润滑泵体,并且泵必须能灵活运转,否则就会导致部件的损坏。




图 3g03836638

表 1
技术规格 - 1W-8508 扫油泵 
项目  数量  零件  技术规格说明 
3H-2750 螺栓  拧紧至扭矩为 50 ± 10 N·m (37 ± 7 lb ft)。 
装配前,用清洁的发动机机油稍微润滑 O 形密封圈的孔。 
1W-8515 齿轮  长度为 110.000 ± 0.015 mm (4.3307 ± 0.0006 inch)
扫油泵体中新齿轮孔的深度为 110.15 ± 0.02 mm (4.337 ± 0.001 inch)。 
161-2510 驱动轴  直径为 31.742 ± 0.008 mm (1.2497 ± 0.0003 inch)
装配后,新驱动轴的 1W-6005 衬套孔径为 31.837 ± 0.070 mm (1.2534 ± 0.0028 inch)。 
1W-8509 扫油泵体  扫油泵体上的 1W-6005 衬套安装深度为 1.5 ± 0.5 mm (0.06 ± 0.02 inch)。 
1W-8511 惰轮轴组件  自惰轮轴组件末端至齿轮端面的距离为 34.0 ± 0.5 mm (1.34 ± 0.02 inch)。 
106-9865 惰轮轴  直径为 31.742 ± 0.008 mm (1.2497 ± 0.0003 inch)
1W-6005 衬套上的新惰轮轴孔径为 31.837 ± 0.070 mm (1.2534 ± 0.0028 inch)。 
0S-0484 螺栓  采用下述步骤拧紧螺栓:
将驱动齿轮安装到驱动轴组件前,清洁轴和齿轮孔。
1. 敲打驱动齿轮以座合驱动齿轮的锥形部分。
2. 拧紧螺栓至扭矩 100 ± 20 N·m (75 ± 15 lb ft)
3. 重复此步骤直到扭矩不再变化。 
从中线穿过轴承孔的衬套接头位置为 45 ± 15 度。 
1W-6005 衬套  7N-8527 泵盖上的安装深度为 1.5 ± 0.5 mm (0.06 ± 0.02 inch)。 
4M-3248 空心定位销  空心定位销的延伸量为 6.4 ± 0.5 mm (0.25 ± 0.02 inch)。 

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