988G Wheel Loader Power Train Caterpillar


Relief Valve (Torque Converter Outlet)

Usage:

988G 2TW



图 1g00545443

压力设定值 ... 414 ± 34 kPa (60 ± 5 psi)

(1) 5M-9548 弹簧 提升阀

在试验力下的长度 ... 21.3 mm (0.84 in)
试验力 ... 4 ± 0.4 N (1.0 ± 0.08 lb)
试验后的自由长度 ... 34.0 mm (1.34 in)
外径 ... 12.2 mm (0.48 in)

(2) 根据需要,安装隔套。

5M-9622 垫片

隔套厚度 ... 1.6 mm (0.06 in)
隔套外径 ... 20.62 ± 0.25 mm (0.812 ± 0.010 in)
增加一个隔套或拆下一个隔套会对出口压力的改变量如下。 ... 32.6 kPa (4.73 psi)

5M-9623 垫片

隔套厚度 ... 0.90 mm (0.035 in)
隔套外径 ... 20.62 ± 0.25 mm (0.812 ± 0.010 in)
增加一个隔套或拆下一个隔套会对出口压力的改变量如下。 ... 18.6 kPa (2.70 psi)

5M-9624 垫片

隔套厚度 ... 0.25 mm (0.010 in)
隔套外径 ... 20.62 ± 0.25 mm (0.812 ± 0.010 in)
增加一个隔套或拆下一个隔套会对出口压力的改变量如下。 ... 5.1 kPa (0.74 psi)

(3) 8M-8627 弹簧

在试验力下的长度 ... 53.6 mm (2.11 in)
试验力 ... 395 ± 32 N (88.8 ± 7.1 lb)
试验后的自由长度 ... 79 mm (3.1 in)
外径 ... 19.8 mm (0.78 in)

(4) 螺栓的扭矩 ... 47 ± 9 N·m (35 ± 7 lb ft)

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