28
2-7-2
SIDE MOUNT SILENCED BRACKET (TNB-2M , 3MB , 4M , 6M )
1.
Lay the hydraulic breaker on the ground.
Stop the excavator engine.
2.
Apply grease to the inside of the chisel
bushing (1) and the chisel (2), and insert
the chisel into the chisel holder along the
retainer pin direction.
3. Insert the retainer pins (3) into the retainer
pin holes of the chisel holder.
※ When assembling the retainer pins, swing
the chisel in horizontal way to ease insertion
process.
4. Set the retainer isolators (7) onto the
retainer cover plate (8) and assemble it with
hex cap bolts (9) with below torque.
・TNB-2M
・TNB-3MB , 4M , 6M
5.
Check if any parts are left and are not
assembled after assembling the chisel.
Hex Size
mm
Torque
N
·
m (kg
·
m)
8
30 (3)
Hex Size
mm
Torque
N
·
m (kg
·
m)
10
44 (4.5)
Use a crane (A) when handling the chisel of
TNB-6M and watch out not to pinch
fingers.
Wear the protection glass, safety shoes and
glove of protection gear.
WARNING
CAUTION
The lack of grease may cause a seizure of
Chisel bushing and Chisel. The clearance
among brand new chisel, brand new chisel
bush and chisel holder bush is tight in order to
maximize its silencing function. Pay a special
attention with above combination.
A
2
1
3
9
8
7
Summary of Contents for TNB-08M
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