320D and 323D Excavators Machine System Specifications Caterpillar


Pilot Valve (Joystick)

Usage:

320D A6F



图 1g01447259

注: 4C-9506 固定胶 涂敷在螺母 (1) 的螺纹上。

(1) 螺母的扭矩 ... 69 ± 5 N·m (50 ± 4 lb ft)

(2) 板的扭矩 ... 69 ± 5 N·m (50 ± 4 lb ft)

(3) 接头的扭矩 ... 47 ± 3 N·m (35 ± 2 lb ft)

(4) 118-4087 弹簧

数量 ... 4
自由长度 ... 10.6 mm (0.42 in)
外径 ... 5.5 mm (0.22 in)

(5) 270-5953 弹簧

数量 ... 4
自由长度 ... 41.9 mm (1.65 in)
外径 ... 15 mm (0.6 in)

190-7750 弹簧

数量 ... 4
自由长度 ... 52 mm (2.0 in)
外径 ... 15.0 mm (0.59 in)

注: 190-7750 弹簧 可取代 270-5953 弹簧 以将工作扭矩降低至初始工作扭矩的 70%。

190-7751 弹簧

数量 ... 4
自由长度 ... 60.1 mm (2.37 in)
外径 ... 15.0 mm (0.59 in)

注: 190-775 1弹簧 可取代 270-5953 弹簧 以将工作扭矩降低至初始工作扭矩的 80%。

(6) 165-9442 弹簧

数量 ... 2
自由长度 ... 29.7 mm (1.17 in)
外径 ... 8.8 mm (0.35 in)

225-4816 弹簧

数量 ... 2
自由长度 ... 30.5 mm (1.20 in)
外径 ... 8.7 mm (0.34 in)

注: 225-4816 弹簧 可取代 165-9442 弹簧 ,以在机器运行期间向操作员提供更受限的控制。

244-8495 弹簧

数量 ... 2
自由长度 ... 29.2 mm (1.15 in)
外径 ... 9 mm (0.4 in)

注: 244-8495 弹簧 可取代 165-9442 弹簧 ,以向操作员提供相当于 A 系列机型的更高控制能力。

244-8499 弹簧

数量 ... 2
自由长度 ... 29.4 mm (1.16 in)
外径 ... 9 mm (0.4 in)

注: 244-8499 弹簧 可取代 165-9442 弹簧 ,以向操作员提供相当于 A 系列机型和 B 系列机型的更高控制能力。

(7) 165-9460 弹簧

数量 ... 2
自由长度 ... 31.1 mm (1.22 in)
外径 ... 8.6 mm (0.34 in)

225-4815 弹簧

数量 ... 2
自由长度 ... 32.0 mm (1.26 in)
外径 ... 9.0 mm (0.35 in)

注: 225-4815 弹簧 可取代 165-9460 弹簧 ,以在机器运行期间向操作员提供更受限的控制。

244-8494 弹簧

数量 ... 2
自由长度 ... 30.1 mm (1.19 in)
外径 ... 9 mm (0.4 in)

注: 244-8494 弹簧 可取代 165-9460 弹簧 ,以向操作员提供相当于 A 系列机型的更高控制能力。

244-8498 弹簧

数量 ... 2
自由长度 ... 30.6 mm (1.20 in)
外径 ... 9 mm (0.4 in)

注: 244-8498 弹簧 可取代 165-9460 弹簧 ,以向操作员提供相当于 A 系列机型和 B 系列机型的更高控制能力。

(8) 两只螺栓的扭矩 ... 21.0 ± 1.5 N·m (15 ± 1 lb ft)

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