APT MH 11, Safety & Operating I

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15 (doc no.)
MH 11, 55, 55a, 70, 70a SAFETY & OPERATING INSTRUCTIONS
Oil flow rate
30 l.p.m
Back
Pressure
10-35 bar
30 l.p.m
Back
Pressure
<10bar
20 l.p.m
Back
Pressure
10-35 bar
20 l.p.m
Back
Pressure
<10bar
no restrictor restrictor 3.4 restrictor 3.2 restrictor 2.8 BRK
55
HBP
no restrictor restrictor 3.4 restrictor 3.2 restrictor 2.8 BRK
55 VR
HBP
no restrictor restrictor 3.2 restrictor 3.2 restrictor 2.8 BRK
70
HBP
no restrictor restrictor 3.2 restrictor 3.2 restrictor 2.8 BRK
70 VR
HBP
There is no EHTMA category for the intermediate
flows.
Replacing the nipple
1. Disconnect the breaker from the power source.
2. Fix the breaker in vertical position in a vice or in
another way so that the breaker is fixed. Never
place it on the nose part because the breaker
can tilt.
3. Loosen the fitting on the T-hose. Remember to
have an oil pan ready to take the oil spill from
the breaker. Drain the oil from the T-hose into
the oil pan.
4. Loosen the nipple on the breaker. Remember to
have an oil pan ready to take the oil spill from
the breaker.
5. Move the seal from the old nipple to the new
nipple. Apply Loctite 245 and fit the nipple.
Tighten with a torque of 56±2 Nm.
6. Refit the hose.
7. Replace the existing EHTMA label, on the breaker
with the new one from the plastic bag, so that
it can be seen that the breaker is now set to a
different flow.
8. Connect the breaker to the power source and
check it for leakage.
Insertion tool
CAUTION Hot insertion tool
The tip of the insertion tool can become hot and
sharp when used. Touching it can lead to burns and
cuts.
►
Never touch a hot or sharp insertion tool.
►
Wait until the insertion tool has cooled down
before carrying out maintenance work.
NOTICE Never cool a hot insertion tool in water,
it can result in brittleness and early failure.
Selecting the right insertion tool
Selecting the right insertion tool is a precondition
for proper machine function. It is important to select
insertion tools of high quality to avoid unnecessary
machine damage.
The machine can be destroyed if you use an incorrect
insertion tool.
Recommended insertion tools are listed in the
machine's spare parts list.
Narrow chisel
The narrow chisel is used for
demolition and cutting work in
concrete and other types of
hard materials.
Moil point
The moil point is only used for
making holes in concrete and
other types of hard materials.
Wide bladed chisel
The wide bladed chisel is used
in soft materials, such as
asphalt and frozen ground.
WARNING Vibration hazard
Using inserted tools that do not fulfil the criterias
mentioned below, will result in a longer time to
complete a task, and may result in higher levels of
vibration exposure. A worn tool will also cause
increased working time.
►
Make sure that the inserted tool is
well-maintained, not worn out and of the proper
size.
►
Always use a sharp tool in order to work
efficiently.
15 3392 5166 01 | Original instructions
Safety and operating instructions BRK 25, 40, 55, 70, 95