帕金斯柴油发动机机油冷却器3012维修保养技术参数资料

Heat exchanger (oil to coolant) - early
热交换器（润滑油）-早期
1 Remov e the drain plug from under the outlet
1移除螺塞从下口
connection of the coolant pump and drain the coolant
冷却液泵的连接和排空冷却液
of the engine into a suitable container. Place another
发动机变成一个合适的容器。另一个地方
suitable container below, and to the rear of, the
合适的容器下面，和后面的
lubricating oil filters. Remove the drain plug at the
润滑油过滤器。拆下排水塞
rear of the heat exchanger to drain the engine
换热器后部的发动机
lubricating oil. Use the strap wrench, 21825 825, to
润滑油。使用带扳手，825 21825，以
remove the filter canisters (A6).
拆下过滤罐（A6）。
2 Release the hose clips and remove the delivery
2松开软管卡子并拆下输送
pipe between the front end of the tube stack and the
管之间的管和管的前端
coolant gallery of ’B’ bank.
'乙'银行的冷却液库。
3 Release the hose clips and slide the hose at the
3松开软管卡子并将软管滑到
inlet for the coolant away from the rear end of the tube
冷却液从管的后端的入口
4 Remove the s ix bolts (A5) which retain the heat
4取出6螺栓（A5），保留热量
exchanger and lift the assembly away from its
换热器，并从其
mounting adaptor.
安装适配器。
1 Fit a new hose, and the two hose clips, onto the end
1安装一个新的软管和软管卡子，到最后
of the pipe on the discharge side of the coolant pump.
在冷却液泵的排出侧管中的管道。
2 Check that four new ’O’ rings (A1) are fitted into
2检查四个新的O型圈（A1）是装在
their locations in the joint face of the heat exchanger
换热器接头面位置
and ensure that the ’O’ rings remain in their positions
确保'澳'戒指留在他们的位置
during the operation. Use suitable guide studs, which
在操作过程中。使用合适的导向螺柱
are made locally, to fit the assembly of the heat
都是在本地制造的，以配合装配的热量
exchanger to the adaptor. Insert the six bolts,
适配器换热器。插入六个螺栓，
complete with plain and spring washers, and tighten
用平和弹簧垫圈完成，并拧紧
them evenly and securely.
它们均匀且安全地。
3 Fit a new hose and the two hose c lips onto the
3安装一个新的软管和软管的嘴唇上的
coolant elbow on the discharge side of the heat
热端的冷却液弯头
exchanger.
换热器。
Check that the faces of the inlet to the coolant gallery
检查进冷却液库的入口的面
and the flange of the inlet pipe are clean. Use a new
和进口管的法兰是干净的。使用一个新的
gasket and fit the pipe to the coolant gallery, insert the
垫片，安装到冷却液管内，插入
four bolts, complete with plain washers and new
四个螺栓，用平垫圈和新的
spring washers, and tighten securely.
弹簧垫圈，并牢固地紧固。

 Slide the two hoses over the junctions of the pipes

and align and tighten the four hose clips.

5  Fill three new filter canisters  with clean engine

lubricating oil and fit them onto the adaptors on the

heat exchanger until the rubber sealing rings are just

in contact with the s eats of the housing. Tighten each

canister a further  /4 turn by hand. Do not overtighten

the canisters.

6  Fit the drain plug for the engine lubricating oil.

7  If the engine lubricating oil c an be used again,

return it to the sump and fill the sump with new and

clean oil to the ’Full’ mark on the dipstick, if necessary.

8  Check that the drain plugs for coolant are secure

and fill the cooling system.  Add more coolant, of the

same specification as that already in use, if

necessary.

To dismantle and to assemble         19-11

To dismantle

Refer to the illustration (A) on page 145.

1  Remove the two small bolts (A2 and A3) and the

washers which retain the tube stack (A7) in the

housing.  Push the tube stack to the rear and remove

the ’O’ ring (A4) from its groove in the rear end of the

tube stack.  Push the tube stack forward and out of

the housing and remove the second ’O’ ring (A8).

Caution: Do not push out the tube stack before the

’O’ ring is removed from the rear end of the tube stack

because the ’O’ ring will not move past the passages

in the housing. If the tube stack is tight in the housing,

it may be released by the use of a suitable piece of

soft wood. Put the piece of wood through the opening

of the coolant inlet and in contact with the end of the

tubes.  Use gently a hammer on the end of the wood

to expel the tube stac k from its housing.  Do not hit

the thin casing at the end of the tube s tack to release

the tube stack.

To assemble

1  Apply some engine oil to the bore at both ends of

the housing.

2  Fit a new ’O’ ring to the groove at the front end of

the tube stac k.  Insert the tube stack into the front end

of the housing.  Align correctly the bolt holes for the

two small bolts and the washers which retain the tube

stack in the housing, and push the tube stack through

enough to show the groove at the rear end.

3  Fit a second new ’O’ ring to the groov e and push

carefully the tube s tack into its correct position. Insert

the two small bolts, with plain washers and new spring

washers, to retain the tube stack in the housing.

Tighten securely the bolts.

To clean and to inspect  

To clean

1  After the removal of the tube stack, check that the

tubes are clean and are not damaged.

2  Wash the tube stack in k erosene and ensure that

the fins are not damaged.  Dry inside the tubes with

compressed air and then wash the tube stac k in hot

water.

3 To loosen hard deposits in the tubes, soak the tube

stack in a solution which is made with a proprietary  

brand of inhibited sulphamic acid.  The solution must

be made and used in accordance with the

manufacturer’s instructions.  When the action of the

solution is finished, dip the tube stack in a solution

made of 0,5 kg (1 lb) of sodium carbonate to 25 litres

(5 imp. gallons) of hot water. The final operation is to

dry inside the tubes with compressed air.

4  Clean the housing of the heat exchanger in a

solvent which is  not caustic, and wash in hot water.

To inspect

1  Check the housing for damage and scratches.

Inspect the tube stac k for corrosion, for cracks and for

damage. The tube stack should be tested also under

pressure.  Close one end of the pack and apply air to

the tubes at 2,11 kg/m  (30 lbf/in ), with the pack

immersed in water at 80°C.

To remove and to fit

1  Remov e the heat exchanger, operation 19-10.

2 Release the two bolts which retain the elbow of the

delivery pipe to the crankcase. Slide the delivery pipe

out of the outlet at the rear end of the mounting

adaptor and remove the elbow from the delivery pipe.

Discard the ’O’ rings.

3 Disconnect the delivery pipes which supply the fuel

injection pump and the two turbochargers with

lubricating oil.

4  Remov e the relief valve (A2), operation 19-17.

5  Release the bolts which retain the mounting

adaptor and lift up the assembly away from the

crankcase.  Keep the two bobbins (A1).

6  Clean thoroughly the mounting adaptor with

kerosene and dry with compressed air.  Inspect for

cracks or other damage and remove all of the debris

which may remain in the connections.

To fit

1  Use clean engine lubricating oil to lubricate the

locations of the two bobbins in the base of the

assembly of the mounting adaptor for the heat

exchanger.

2  Fit new ’O’ rings to each of the bobbins and press

the bobbins into the recesses in the assembly (A). Oil

lightly the recesses for the bobbins in the sump

adaptor, hold the assembly of the mounting adaptor

on the side wall of the crankcase and press it

downward to engage the bobbins in the sump

adaptor.

3  Fit the six bolts, with plain and spring washers, to

retain the assembly and tighten them securely.

4  Fit the relief valve, operation 19-17.

5  Fit the heat exchanger, operation 19-10.

Heat exchanger (oil to coolant)

To remove and to fit

Special tools:

Strap wrench, 21825 825

1 Fit a new hose, and the two hose clips, onto the end

of the pipe on the discharge side of the coolant pump.

2  Ensure that the two bobbins  which fit in the heat

exchanger are clean.  Fit new ’O’ rings to the grooves.

3  Apply clean engine lubricating oil to the ’O’ rings

and fit the bobbins to their respective bores. The long

bobbin is fitted in the elbow connector and the short

bobbin is fitted in the lubricating oil sump.

4  Hold the body of the heat exchanger over the two

bobbins and move the body downward carefully to

1  If relevant, remove the air duct, from between the

turbocharger on ’B’ bank and the air charge cooler, for

access to the heat exchanger.

2  Remove the drain plug from the outlet connection

of the coolant pump and drain the coolant of the

engine into a suitable container. Put another suitable

container below and to the rear of, the lubricating oil

filters.  Remove the drain plug at the rear of the heat

exchanger to drain the engine lubricating oil. Use the

strap wrench, 21825 825, to remove the filter

canisters.

3  Release the hose clips and remove the delivery

pipe between the front end of the tube stack and the

coolant gallery of ’B’ bank.

4  Release the hose clips and slide the coolant hose

away from the rear end of the tube stack.

5  Remove the elbow at the rear of the crankcase,

which is the inlet for the lubricating oil to the main oil

gallery, and withdraw the delivery pipe from the body

of the heat exchanger.

6 Remove two bolts to disconnect, at the crankcase,

the drain pipe for the lubricating oil from the

turbocharger of ’B’ bank, and move the pipe away for

access to the body of the heat exchanger.

7 If necessary, remove the relief valve, operation 19-

  Remove the four bolts which retain the heat

exchanger, lift up the body of the heat exchanger to

disengage the two bobbins which connect with the

lubricating oil sump and remove it from the engine.

engage the bobbins in the bores of the heat

exchanger.

5 Fit the four bolts which retain the heat exchanger to

the crankcase and tighten securely.

6  If relevant, fit the relief valve, operation 19-17.

7  Fit the drain pipe for lubricating oil between the

turbocharger of ’B’ bank and the crankcase.  Retain

with the two bolts and use a new joint.

8 If necessary renew the ’O’ rings  of the delivery pipe

for the lubricating oil, and insert the pipe into the body

of the heat exchanger. Insert the other end of the pipe

into the elbow and fit the elbow to the rear of the

crankcase.  Use a new joint and retain with two bolts

with plain and spring washers.

9  Fit a new hose, and the two hose clips, onto the

coolant elbow on the discharge side of the heat

exchanger.

10  Check that the faces of the inlet to the coolant

gallery and the inlet pipe flange are clean. Use a new

joint and fit the pipe to the coolant gallery, insert the

four bolts, complete with plain washers and new

spring washers, and tighten securely.

11 Slide the two hoses over the junctions of the pipes

and align, and tighten the four hose clips.

12  Fit the drain plug for engine lubricating oil to the

rear of the heat exchanger and check that it is secure.

 13  Fill three new filter canisters with clean engine

lubricating oil and fit them on to the adaptors on the

heat exchanger until the rubber sealing rings are just

in contact with the seats of the housing. Tighten each

canister a further  /4 turn by hand. Do not overtighten

the canisters.

14  If the engine lubricating oil can be used again,

return it to the sump of the engine and fill the sump

with new and clean oil to the ’Full’ mark on the

dipstick, if necessary.

15  Check that the drain plugs for coolant are fitted

and secure.  Fill the cooling system and add more

coolant, of the same specification as that already in

use, if necessary.

16 If relevant, fit the air duct from the turbocharger on

’B’ bank to the air charge cooler.

To dismantle and to assemble   To dismantle

1  Remov e the two small bolts (A2 and A3) and the

washers which retain the tube stack (A7) in the

housing.

Push the tube stack to the rear and remove the ’O’

ring (A4) from its groove in the rear  end of the tube

stack.  Push the tube stack forward and out of the

housing and remove the second ’O’ ring (A8).

Caution: Do not push out the tube stack before the

’O’ ring is removed from the rear end of the tube stac k

because the ’O’ ring will not move past the passages

for the lubricating oil in the housing. If the tube stack

is tight in the housing, it may be released by the use

of a suitable piece of soft wood. Put the piece of wood

through the opening of the inlet for the c oolant and in

contact with the end of the tubes.  Use gently a soft

faced hammer to expel the tube stack from its

housing. DO NOT hit the thin casing at the end of the

tube stack to releas e the tube stack.

To assemble

1  Apply some engine oil to the bore at both ends of

the housing.

 2  Fit a new ’O’ ring to the groove in the front end of

the tube stac k.  Insert the tube stack into the front end

of the housing.  Align correctly the bolt holes for the

two small bolts and the washers which retain the tube

stack in the housing, and push the tube stack through

enough to show the groove in the rear end.

3 Fit a second new ’O’ ring into the groove and push

carefully the tube stack into its correct position. Insert

the two small bolts, with the plain washers and new

spring washers, which retain the tube stack in the

housing.  Tighten securely the bolts.  

帕金斯柴油发动机机油冷却器3012清洁和检查

To clean

1  After the removal of the tube stack, chec k that the

tubes are clean and are not damaged.

2  Wash the tube stack in k erosene and ensure that

the fins are not damaged.  Dry inside the tubes with

compressed air and then wash the tube stack in hot

water.

3 To loosen hard deposits in the tubes, soak the tube

stack in a solution which is made with a proprietary

brand of inhibited sulphamic acid.  The solution must

be made and used in accordance with the

manufacturer’s instructions.  When the action of the

solution is finished, dip the tube stack in a solution

made of 0,5 kg (1 lb) of sodium carbonate to 25 litres

(5 imp.  gallons) of hot water. The final operation is to

dry inside the tubes with c ompressed air.

4  Clean the housing of the heat exchanger in a

solvent which is not caustic, and wash in hot water.

To inspect

1  Check the housing for damage and scratches.

Inspect the tube stac k for corrosion, for cracks and for

damage.

2  The tube stack should be tested also under

pressure.  Close one end of the pack and apply  air to

the tubes at 2,11 kg/m  (30 lbf/in ), with the pac k

immersed in water at 80°C.

To remove and to fit

 

1  The illustration (A) shows the location of the relief

valve for early engines: in the mounting adaptor for

the heat exchanger.  On new engines, the location of

the relief valve is near the c rankcase in the lower rear

end of the heat exchanger.  The same type of relief

valve is used for both locations.

To remove

A

184

1  Remov e the c ap (A2) and withdraw the assembly

of the relief valve. Check the plunger and the housing

for scratches and for damage.  If the scratches are

deep, the complete assembly must be renewed.

To fit

Caution: To ensure that the opening pressure is

correct, always fit a new spring.

1 Check  the spring for distortion, and measure its free

length.  A new spring conforms to the requirements

given below:

Free length      123,2 mm (4.85 in)

Length under load of

39,5 kgf (87 lbf)  74,0 mm (2.91 in)

2  Lubricate lightly the plunger and ensure that it

slides freely in the bore of the casing.  Insert the

spring.  Fit the cap, with a new c opper washer, and

tighten it securely.