66
Operating Manual Crawler Excavator TC37
Care and Maintenance
7
7.5
Care and cleaning
• Neither a steam-jet appliance nor a high-pressure
cleaning apparatus may be used for cleaning
during the first two months after the machine has
been used for the first time, or when newly
painted, to ensure that the paint can harden
sufficiently.
• Do not use aggressive detergents for cleaning the
machine. We recommend using commercially
available cleaning agents for passenger cars.
• When cleaning with a steam-jet appliance, the hot
water jet should not exceed 176 °F and a spray
pressure of 1015 psi.
• Linings (insulating materials, etc.) should not be
exposed directly to water, steam or high-pressure
jets.
• When cleaning with water or steam jets, take care
not to spray exhaust-gas and air filter openings.
• When cleaning the engine with water or steam
jets, do not expose sensitive engine parts, such as
generator, cabling, oil pressure switches, etc.
directly to the jet.
• After each wet clean, the machine must be
lubricated in accordance with the lubricating plan
and a test of all work cycles, support and driving
functions carried out.
7.6
Notes for winter operation
The following points - and the relevant notes in the
Engine Instruction Book - should be observed during
winter operation:
Hydraulic oil
– If the machine is not used for longer periods at
temperatures around and below freezing, warm it
up by running the engine at medium speed
(approx. 3 – 5 min).
Engine oil
– The oil viscosity (SAE class) should be selected
according to the ambient temperature at the
machine's place of operation.
Coolant
– Before the beginning of the cold season, check
the level of antifreeze and adjust in line with the
ambient temperature if necessary. At the factory,
the antifreeze protection is set to approx. –40 °F.
Condition of the battery
– A good cold start performance requires a well-
charged battery. By warming the battery to
approx. 68 °F (remove the battery after the
engine has been turned off and store it in a warm
room), the minimum starting temperatures can be
lowered by 39 – 41 °F.
– When installing the battery, ensure good contact
of terminal connections.
– Only tighten terminal screws so that they are
"hand-tight", to prevent deformation of the
terminal cones.
Fuel
• Only use commercially available brand-named
diesel fuel with a sulfur content of less than 0.5%.
Use only winter diesel fuel in winter to prevent line
connections becoming blocked through paraffin
deposits. At very low temperatures, troublesome
deposits may also occur when winter diesel is used.
Attention
The machine must be cleaned on a suitable
surface with an oil separator.
