ar2000p1010mev

Inspect cooling system for leaks

유형 ar · 주제 20.00 · 버전 0104 · 2019-11-19

적용 대상: Engine 780.009 in model 451.391/491 Electric motor coolant circuit

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위치

기능 그룹 1 엔진 › 20 엔진냉각 › 20.00 서문 — 시리즈 451 (모델 391, 491)

EinPAS 15 엔진 › 15.25 엔진 냉각 시스템 › 15.25.5 냉각수 회로 전체 — 시리즈 451 (모델 391, 491)

엔진/변속기에도 적용: 780 009

AR20.00-P-1010MEV

Inspect cooling system for leaks

18.11.2019

Engine

780.009 in model 451.391/491

Electric motor coolant circuit

Inspect cooling system for leaks

1

Cap

2

Radiator

P20.00-2373-11

Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Check

1

Remove interior flap above engine

AR88.40-P-1100-03MCC

2

Turn cooling system cap (1) on expansion reservoir (2) a half turn counterclockwise, relieve the overpressure and then unscrew the cooling system cap (1)

3

Check coolant level in cooler (2), correct if necessary

Coolant specifications

BB00.40-P-0310-01A

Anticorrosion/antifreeze agents (Sheet 325.0)

BB00.40-P-0325-00A

Fill cooling system up to the upper edge of the cooler (2).

4

Attach pressure pump to cooler (2)

Pressure pump

*450589072100

5

Apply a pressure of a max. 1.6 bar to the cooling system

6

Observe pressure gauge on pressure pump for pressure drop in cooling system

7

Check all components of cooling system for leaktightness and establish coolant loss

Remove cause of the coolant loss if necessary; then repeat the check.

8

Remove pressure in the cooling system on the pressure pump

9

Attach pressure pump to cooler (2)

Pressure pump

*450589072100

10

Seal cooler (2) with cap (1)

11

Install interior flap above engine

AR88.40-P-1100-03MCC

Inspect cooling system for leaks

450 589 07 21 00

Pressure pump

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