60
Operating Manual Crawler Excavator TC37
Working operation
6
6.2.4
Hydraulic rock breaker
Attaching the hydraulic rock breaker
• Mechanical installation is similar to the attachment
of a bucket with or without quick-attach system.
• The hydraulic pressure supply is connected to a
line of the additional control circuit (35/1) by
means of a coupling.
• Connect the return line to the coupling (35/4) of the
"open return".
Hydraulic rock breaker operations
Maintenance of the hydraulic rock breaker
• Maintenance of the hydraulic rock breaker must be
performed according to the instructions of the
hydraulic rock breaker manufacturer.
Attention
• The ball valves and couplings are optional
and are not included in delivery.
Machine damage
due to inappropriate hydraulic rock breaker.
– Only use rock breakers approved by
Terex.
– The Mounting & Operating Instructions of
the hydraulic rock breaker manufacturer
must be observed.
– Neither the permissible capacity in liters in
the rock breaker supply line nor the
permissible operating pressure of the rock
breaker (= pressure at rock breaker entry
during operations) must be exceeded.
If malfunctions occur during operation, the
additional control circuit of the machine is
fitted as standard with a pressure relief of
210 bar.
– When working in or under water, special
rock breaker types must be used.
Fig. 35
Additional control circuit
HR3.7-29
2
1
4
2
1
3
right
left
Machine damage
due to improper use.
Ensure that the rock breaker is always used
properly; improper use may lead to severe
damage to the rock breaker, holder and the
excavator itself.
• The notes and instructions provided by the
hydraulic rock breaker manufacturer must
be observed.
