D8R Track-Type Tractor Power Train Caterpillar


Transmission Pump

Usage:

D8R 7XM



图 1g00565351



图 2g00725227

注: 组装箱体前后,泵必须能够转动自如。

(1) 齿轮和盖之间的间隙(C 区) ... 0.130 ± 0.043 mm (.0051 ± .0017 in)

(2) 新齿轮和泵体之间的间隙(B2 区) ... 0.081 ± 0.021 mm (.0032 ± .0008 in)

(3) 新齿轮和泵体之间的间隙(B1 区) ... 0.094 ± 0.033 mm (.0037 ± .0013 in)

(4) 齿轮和盖之间的间隙(A 区) ... 0.089 ± 0.028 mm (.0035 ± .0011 in)

(5) 轴承孔径 ... 31.786 ± 0.008 mm (1.2514 ± .0003 in)

(6) 轴径 ... 31.742 ± 0.005 mm (1.2497 ± .0002 in)

注: 使用温度为 49 ℃ (120 ℉) 的 SAE 10W 机油进行台架测试。

表 1
技术规格    
    A     B     C    
功能     变速箱
充电    
扭矩
变矩器
充电    
变速箱

变矩器
扫油泵    
旋向     逆时针 (1)     逆时针 (1)     逆时针 (1)    
输出 (1)    
72 L/min (19 US gpm)    

96 L/min (25 US gpm)    

104 L/min (27 US gpm)    
RPM     1800     1800     1800    
压力    
2900 kPa (420 psi)    

900 kPa (130 psi)    

200 kPa (29 psi)    
( 1 ) 逆时针
( 1 ) 最低输出量

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