Perkins2806柴油发电机水泵的拆装维修技术

Perkins2806柴油发电机水泵的拆装维修技术

Coolant pump

To remove and to fit

To remove

  Drain the coolant from the engine into a suitable container for storage or disposal.

2  Remove the thermostat housing, Operation 2-0.

  Remove the oil cooler, Operation 2-9.

4  Remove four bolts (A) and the elbow (A2).

Operat ion 2-

5  Check the condition of the ‘O’ ring seal (B), discard the seal if it is worn or damaged. Remove the bolts

from the gear case cover and the coolant pump and remove the coolant pump.

To fit

  Fit the coolant pump to the gear case, ensure that the gear engages correctly. Tighten the bolts.

2  If necessary, fit a new ‘O’ ring seal (B). Fit the elbow (A2) and retain with four bolts (A).

  Fit the oil cooler, Operation 2-9.

4  Fit the thermostat housing, Operation 2-0.

5 Fill the coolant system to the correct level with the specified coolant mixture. Refer to the User’s Handbook

for the correct procedure.

2

2800

To dismantle and to assemble

Operation 2

Notes:

l  The coolant pump seal can be renewed without removal of the coolant pump from the engine.

l  Intermittent leakage of a small amount of coolant from the hole in the c oolant pump housing is not an

indication of a coolant pump seal failure. This is required to provide lubrication for the seal. Renew the

coolant pump seal only if a large amount of leakage or a constant flow of coolant is observed draining from

the c oolant pump housing.

l  Service exc hange coolant pumps can be obtained from your Perkins dealer.

To dismantle

 Remove the bolt (A5) and washer (A4). Use a suitable puller to remove the impeller (A) from the shaft

(A6). Ensure that the impeller does not become damaged during this operation.

2  Remove the spring and seal (A) from the shaft.

Note: The coolant pumps of certain engines may not have a spring fitted at this position.

 Remove the four bolts (A6) from the retainer (A7) and remove the ‘O’ ring seal (A9) from the housing (A0).

4  Remove the gear and shaft assembly (A8). Remove the bolt (A4) and retainers (A and A7) from the shaft

assembly.

5  Use a press to remove the shaft (A6) from the gear. Remove the bearing (A), the spacer if fitted, and

second bearing (A2) from the shaft.

6  Remove the lip-type seal (A2) from the housing.

2800

To assemble

  Ensure that the shaft and the seal counter bore in the pump housing are clean.

2  Fit the bearing (A), the spacer if relevant, and the second bearing (A2) to the shaft (A6).

2

  Fit the retainer (A7) and gear (A8) to the shaft assembly. Fit the second retainer (A) and the bolt (A4).

4 Fit a new lip-type seal (A2) into the housing (A0). The seal must be fitted with the lip toward the inside of

the housing. Apply a small amount of clean engine oil to the lip of the seal.

5  Fit a new ‘O’ ring seal (A9) to the housing.

6  Install the gear and s haft as sembly in the housing. Fit the bolts (A6) which hold the retainer (A7) to the

housing.

Caution: Do not allow grease or oil to contact the faces of the seal. Do not stretch the seal during installation.

Note: The carbon seal assembly (A) must rotate with the coolant pump shaft when it is installed. Use clean

water as a lubricant for assistance during installation.

7 Separate the spring from the seal assembly (A). Use hand pressure to install the seal on the shaft (A6).

Push the seal onto the shaft until the seal faces make light contact. Fit the spring to the shaft.

8 Fit the impeller (A) to the shaft and retain with the washer (A4) and bolt (A5). Tighten the bolt to a torque

of 9 +/-  Nm (28 +/- 2 lbf ft).

9  Fit the coolant pump, Operation 2-. 珀金斯ulpk0034活塞,郑州沃尔沃柴油机配件,郑州沃尔沃发电机配件,郑州经营珀金斯发动机配件,河北 林德帕金斯 起动机,帕金斯柴油发电机组配件,大宇发电机组配件,帕金斯1004发动机柴油虑清器,沃尔沃TAD1242柴油机配件,东营威尔信发电机组配件,帕金斯飞轮壳配件部