Vehicle cleaning
Keep in mind that the warranty does not
apply if the instructions described in this
chapter are not followed.
The warranty may be affected if the
vehicle is used in a manner other than
for which it was intended, faulty
workmanship, or when bodywork has not
been conducted in accordance with
Volvo Bus Corporations’ instructions.
Pressure washer
Pressure washing is an efficient way to
clean the bus.
Exercise caution when using pressure
washers. Penetrating water and dirt may
cause damage. Damage occurs over
time and the connection with washing is
not obvious.
The minimum permitted distance
between the pressure washer nozzle and
the washing surface is:
• 30 cm with a flat wide jet
• 70 cm with round concentrated jet
The maximum water jet pressure should
not exceed 130 bar.
Do no use rotating and pulsing high
pressure nozzles on rubber, especially
not on tyres and rubber bellows.
When using pressure washers, the
maximum permitted temperature is 50°C.
CAUTION
Never spray water directly on to:
• Electrical components and connectors
• Air inlets and ventilation for gearboxes,
oil reservoirs, etc.
• Sound baffles
• Universal joints
• Slip joints
• Joints
• Support bearings
• Sealings
Cleaning agents
Most cleaning agents contain sodium
hydroxide ranging from 0,5-5%
depending on the product used. These
agents can be both corrosive and irritant
to the skin and airways. Inadequate
rinsing will result in dull paintwork and
may leave a highly corrosive residue.
Keep contact with alkali sensitive
materials to a minimum and do not allow
the cleaning agent to dry on the surface.
Use degreasers with caution. They are
generally made up of strong alkaline (pH
>12) and they are highly corrosive. To
remove salt, soot and asphalt, use
cleaning agents with a neutral pH value.
NOTE
It is important to wear suitable protective
clothing and follow recommended
instructions for any product used.
The scale below shows a safe, unsafe
and extremely unsafe levels of pH in
water or cleaning agents. The
recommended pH is between 5,5-8.
Acidic
0
EXTREMLY
UNSAFE
1
2
3
4
Weak acid
5
UNSAFE
pH neutral
6
SAFE PH
7
Weak alkaline
8
UNSAFE
Strong alkaline
9
EXTREMLY
UNSAFE
10
11
12
13
14
07
Maintenance and service
106
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