If the relief valve on a diesel engine cylinder lifts, the cause could be due to ()
A、liquid in the cylinder
B、low compression in the cylinder
C、high exhaust temperature
D、poor fuel penetration
A、liquid in the cylinder
B、low compression in the cylinder
C、high exhaust temperature
D、poor fuel penetration
A、A.the relief valve should open before the high-pressure cutout B、B.the relief valve should open and let excess refrigerant go to receiver C、C.the high-pressure cutout switch should operate before the relief valve opens D、D.close in on the suction valve
A、A.the relief valve should open before the high pressure cutout B、B.the relief valve should open and allow the excess refrigerant to flow to the receiver C、C.the high pressure cutout switch should operate before the relief valve opens D、D.you should close in on the suction valve
A、the direct acting relief valve is used for controlling lower flows and pressure B、the pilot operated relief valve is used for controlling higher flows and pressure C、the pilot operated relief valve is used for controlling lower flows and pressure D、the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
A、motor overload would open B、relief valve would open C、pump would eventually overheat D、motor would overheat
A、motor controller overload would open B、pump would eventually overheat C、relief valve would continuously cycle open D、motor would overheat
A、excessively late injection timing for each cylinder B、incorrectly adjusted intake valve timing C、incorrectly adjusted fuel injector D、incorrectly adjusted intake valve clearance
A、to fill 2 tanks at the same time B、to use pump at a higher pressure C、to return liquid to suction side if discharge valve is closed D、All of the above are true
A、system was overcharged with refrigerant B、system was low on refrigerant C、suction valves were leaking slightly D、relief valve was leaking slightly
A、after the discharge valve B、between the pump and discharge valve C、after the suction valve D、between the pump and suction valve