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10 ► MB05 User Manual
SECURING THE TOOL BIT
1. The tool retainer is shipped installed in the breaker.
2. Remove the stop pin and plug.
3. Drive out the tool retainer.
4. Grease the top area of the tool bit as shown in the
illustration on page 9.
5. Install the tool bit making sure the notch is aligned
with the lower body retainer pin holes.
6. Install the tool retainers.
Piston in Down Position
Against Tool Bit
Tool Stop
Lower Bushing
Tool Bit
Tool Bit
Grease Will Fill
This Space
Piston not against
Tool Bit leaving space
between the Piston and
Bit.
Tool Stop
Lower Bushing
WARNING
Greasing the tool bit without down pressure on the
breaker results in grease lling the space between
the piston and the tool bit. When the breaker is next
activated, the piston will strike the grease at a speed
which will pressurize the grease resulting in seal and
grease zerk failure.
LOW TEMPERATURE WARM-UP
PROCEDURE
1. After starting the carrier, warm-up the hydraulic sys-
tem at engine idle until hydraulic lines are warm to
the touch.
2. With the carrier at idle and the breaker suspended
in the air or with minimal down pressure, turn on the
breaker to gradually warm up its internal compo-
nents.
3. When the hydraulic system and breaker are warm,
proceed with operation.
LONG TERM STORAGE
1. Remove the tool bit, clean the tool stop and the low-
er bushing. Thoroughly coat the surfaces of the tool
stop and the lower bushing with grease.
2. If hoses are attached to the breaker, install plugs
on the hose ends. If hoses are removed from the
breaker, install plugs on the hose ends and install
plugs in the breaker IN and OUT ports.
3. Store the breaker in a vertical position. Do not store
the breaker horizontally for extended periods.
WARNING
Always wear eye protection when installing or
removing the tool retaining pin.
OPERATION