如何檢查帕金斯柴油發(fā)動機氣門的間隙

The tappet clearance is measured between the

挺桿間隙測量之間的

rocker levers and the top of the valve bridge pieces.

搖桿杠桿和閥橋件頂部。

See page 45 for the size of the clearances.

見45頁的大小的間隙。

Each valve bridge piece controls two valves. An

各閥橋片控制閥。一個

adjustment screw and lock nut is fitted to each bridge

調(diào)整螺釘和鎖緊螺母安裝在每個橋上

piece to ensure that equal force is applied to both

片，以確保平等的力量被應(yīng)用到這兩個

valves from the rocker arm.

搖臂的氣門。

Before the tappet clearances are adjusted, the valve

在挺桿間隙調(diào)節(jié)閥

bridge pieces MUST be checked and adjusted if

橋梁件必須檢查和調(diào)整，如果

necessary.

必要的。

Check and adjust the valve bridge pieces and tappet

檢查并調(diào)整氣門橋片、氣門挺桿

clearances while the fuel injectors are removed for

被拆除的燃料噴射器的間隙

service.

服務(wù)。

Caution: Numbers A1 and B1 cy linders are at the

注意：號碼A1和B1 CY該在

front (fan end) of the engine.

Perkins3012發(fā)動機前（風(fēng)扇端）。

1 Remove the air filters, the high pressure fuel pipes

1拆下空氣濾清器，高壓燃油管

and the fuel injector leak-off pipes.

和燃油噴射器泄漏的管道。

2 Remov e the rocker covers .

2清除搖桿蓋。

3 Turn the crankshaft in the normal direction of

3將曲軸轉(zhuǎn)動向正常方向

rotation until the inlet valve of number A1 cylinder has

旋轉(zhuǎn)直到數(shù)A1缸進氣門

just opened and the exhaust valve of the same

剛剛打開和排氣閥相同

cylinder has not closed completely.

缸沒有完全封閉。

Check and, if neces sary, adjust the valve bridge

檢查，如果有必要，調(diào)整氣門橋

pieces of only the cylinder numbers which follow:

只按照氣缸編號：

Inlet: A2, A4, A6, B1, B3, B5

進口：A2、A4、A6、B1、B3、B5

Exhaust: A3, A5, A6, B1, B4, B5

排氣：A3、A5、A6、B1、B4、B5

To adjust the valve bridge pieces, proceed as follows:

調(diào)整閥橋件，進行如下：

Loosen the lock nut and the adjustment screw on the

擰松鎖緊螺母和調(diào)整螺釘

relevant bridge piece. Use the rocker lever to apply

相關(guān)橋片。使用搖桿手柄

pressure to the bridge piece, then turn the adjustment

到大橋的壓力，然后把調(diào)整

screw until it is just in contact with the tip of the valve

螺桿，直到它與閥門的尖端接觸

stem (A). Hold the adjustment screw in this position

干（一）。把調(diào)整螺絲固定在這個位置上

with a screwdriver and tighten the lock nut to a torque

用螺絲刀擰緊鎖緊螺母以扭轉(zhuǎn)力矩

of 40 Nm (30 lbf ft). Use a torque wrench with a ring

40牛米（30磅英尺）。用一個帶戒指的扭力扳手

spanner adaptor. Note that the reading on the torque

扳手適配器。注意閱讀上的扭矩

wrench must be adjusted to compensate for the extra

扳手必須調(diào)整以補償額外的

length caused by the ring spanner adaptor.

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