Atlas Copco XAS 185 KD7 IT4, Instruction Manual

- 8 -

- all hoses and/or pipes inside the unit are in good condition,

secure and not rubbing,

- there are no fuel, oil or coolant leaks,- all fasteners are tight
- all electrical leads are secure and in good order,
- the engine exhaust system is in good condition,
- air outlet valves and manifold, hoses, couplings, etc. are in good

repair, free of wear or abuse,

- the wheel nuts are tightened to the proper torque.

When more than one compressor is connected to a common

header, be sure each compressor has a non-return valve
(check valve) to prevent reverse rotation when stopping.

Safety during maintenance and repair

Maintenance, overhaul and repair work shall only be

carried out by adequately trained personnel; if required,
under supervision of someone qualified for the job.

1 Use only the correct tools for maintenance and repair

work, and only tools which are in good condition.

2 Parts shall only be replaced by genuine spare parts.
3 All maintenance work, other than routine attention,

shall only be undertaken when the unit is stopped.

Ensure that the unit cannot be started inadvertently

4 Before removing any pressurized component, the

compressor or equipment shall be effectively isolated

from all sources of pressure and the entire system shall

be relieved of pressure. Do not rely on non-return

valves (check valves) to isolate pressure systems. 

5 Never use flammable solvents for cleaning (fire-risk).

Take safety precautions against toxic vapours of

cleaning liquids.

6 Scrupulously observe cleanliness during maintenance

and when performing repairs. Keep dirt away by

covering the parts and exposed openings with a clean

cloth, paper or tape.

7 Never weld on or perform any operation involving heat

near the fuel or oil systems. Fuel and oil tanks must be

completely purged, e.g. by steam-cleaning, before

carrying out such operations. Never weld on, or in any

way modify, pressure vessels. Disconnect the

alternator cables during arc welding on the unit.

8 Support the drawbar and the axle securely if working

underneath the unit or when removing a wheel. Do not

rely on jacks.

9 Make sure that no tools, loose parts or rags are left in

or on the unit.

10 Before clearing the unit for use after maintenance or

overhaul, check that operating pressures, temperatures

and speeds are correct and that the control and

shutdown devices function correctly.

11 Do not remove any of, or tamper with, the sound

damping material. Keep the material free of dirt and

liquids such as fuel, oil and cleansing agents.

12 Protect the electrical and regulating components, the

air filter, etc. to prevent moisture from entering them,

e.g. when steamcleaning.

Tool applications safety

Apply the proper tool for each job. With the knowledge of

correct tool use and knowing the limitations of tools,
along with some common sense, many accidents can be

prevented.
Special service tools are available for specific jobs and
should be used when recommended. The use of these

tools will save time and prevent damage to parts.

1 Use only wrenches or sockets whose size fits the

fastener.

2 Apply an open-end wrench only in the place of the

fastener head, square to the thread axis.

3 Do not use a pipe or other improvised leverage

extensions on handles.

4 Do not hammer on wrenches or other tools which are

not specially designed for it.

5 Always support the ratchet head when using socket

extensions.

6 Discard any wrench with broken or battered points or

edges.

7 Never use hand type sockets on power or impact tools.
8 Select only heavy-duty impact sockets for use with

pneumatic or electric impact tools.

9 Replace sockets showing cracks or wear; keep sockets

clean.

10 Never use screwdrivers for prying, punching,

chiseling, scoring or scraping.

11 Use the correct type and size of screwdriver for the job.

The bit must match the fastener.

12 A screwdriver with rounded edges will slip; it needs to

be redressed or discarded.

13 Never use a screwdriver or any other tool near a live

wire or electrical component. Plastic covering of

handles is for comfort and grip only. They are not

intended to act as insulation if such is not clearly

marked by the manufacturer.

14 Never strike a hammer against a hardened object; use a

soft drift against the object and strike against the drift.

15 Strike the object with the full face of the hammer.
16 Never use a hammer with a loose head.
17 Discard a hammer with chipped or mushroomed face.
18 Never use a chisel or punch with a chipped or

mushroomed striking face.

19 Always pull on a wrench or socket handle, if possible,

and adjust your stance to prevent a fall if something lets

go.

20 Wear approved eye protection when using percussion

tools or when scraping, chipping, shaving or grinding.

21 Wear protective gloves when holding a chisel or punch.

Batteries

When servicing batteries, always wear protecting

clothing and glasses.
1 The electrolyte in batteries is a sulphuric acid solution

which is fatal if it hits your eyes, and which can cause

burns if it contacts your skin. Therefore, be careful

when handling batteries, e.g. when checking the charge

condition.

2 Install a sign prohibiting fire, open flame and smoking

at the post where batteries are being charged.

3 When batteries are being charged, an explosive gas

mixture forms in the cells and might escape through the

vent holes in the plugs. Thus an explosive atmosphere

may form around the battery if ventilation is poor, and

can remain in and around the battery for several hours

after it has been charged. Therefore:

- never smoke near batteries being, or having recently been,

charged,

- never break live circuits at battery terminals, because a

spark usually occurs.

4 When connecting an auxiliary battery (AB) in parallel

to the unit battery (CB) with booster cables: connect

the + pole of AB to the + pole of CB, then connect the

- pole of CB to the mass of the unit. Disconnect in the

reverse order.

Incorrect connection will damage

alternator.