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Hägglunds CB 280 User manual

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SC-2.3
2008-11-20
Assembly Instructions
Compact CB 280
Hägglunds Drives AB
SE-890 42 Mellansel
Sweden
Tel: +46 (0)660 870 00
E-mail:
[email protected]
www.hagglunds.com
This material is strictly for internal use within the Hägglunds Drives Group only
Page 2 For internal use only
Assembly Instructions CB 280
Important!
The highest cleanliness of the motor parts and
of the workplace is always the basics to ensure the
smooth functioning of the hydraulic motor!
A lifting capacity of 800 kg (1764 lb)
is required to perform this work!
Make a note in the service inspection report:
the motor type and individual number from the sign
on the motor. This is important when
you are ordering spare parts.
D-40063
Special tool needed
T-000022 T-000043D-30205
D-30204
Page 3 For internal use only
Assembly Instructions CB 280
Grind the cam ring surface
around the roll pin holes with
a fine grinding stone.
It is very important to
clean the cam ring good
before assembling!
Grind the spacer ring over the
roll pin holes with a fine grind-
ing stone on both sides of the
spacer ring. Do not grind on the
sliding surface for the roller.
The highest cleanliness of the motor parts and of the
workplace are basics to ensure the smooth functioning
of the hydraulic motor!
Make sure to minimise that contamination can enter
into the motor during the assembling.
Ensure that you have cleaned all motor parts thoroughly,
especially if you have re-machined, grinded or in some
other way worked up the motor parts.
After final cleaning of the motor parts, don’t leave the
parts too long before assembling.
When lubricating
• always use clean filtrated oil, recommended ISO class
16/13 according to ISO 4406, NAS.7,
• always use clean grease of type Texaco Multifac EP2
or equivalent.
Rust protection
Use Shell Ensis SX or equivalent rust protection fluid.
Always use new gasket set.
Sliding surface
Important preparation before assembly
Work to be done before
cleaning the motor parts:
Always treat the sliding
surfaces with care
Shaft end housing Connection block and valve plate
Page 4 For internal use only
Assembly Instructions CB 280
A1
Install the Ø 1 mm orifice in the flushing connection
(F1) in the shaft end housing.
Note! This orifice is only used when flushing of the seal
is needed, normally plugged.
A2
Install the flushing connection plug (F1) G 1/4".
Allen key 6 mm, torque 30 Nm (22 lbf·ft)
A4
Drawing shows the direction of the seals.
Dust
seal
Radial lip
seal
A3
Install the connection plug (D3) 1" in the shaft end
housing.
Allen key 12 mm. Torque 125 Nm (92 lbf·ft).
Page 5 For internal use only
Assembly Instructions CB 280
A5
Install the dust seal in to the shaft end housing.
Tool D-30204.
A6
Place the shaft end housing on supports (x3).
Equally devided. Tool D-30205.
A7
Tap down the radial lip seal, turn the seal according
to drawing A4. Tool D-30204.
Note! Be careful not to damage the seal lip.
A8
Lubricate the seal with grease, Texaco Multifac EP2
or equivalent.
Note! Use a brush of good quality and watch out
so hair doesn’t come loose.
Page 6 For internal use only
Assembly Instructions CB 280
A12
Lubricate the O-ring for the wear ring with oil
and install it on the shaft.
A9
Lubricate the O-ring with oil and install it in the shaft
end housing.
Note! The screw joint on the motor works as a frictional
connection, so no oil are allowed on the surface.
A11
Heat up the roller bearing to 110°C (230°F) in an oven.
Tap the bearing down with a brass or a plastic rod. The
bearing should be turned according to drawing A10.
Note! To awoid damages on the bearing only tap on the
inner race of the bearing.
A10
Note! The snap ring on the bearing shall be towards
the middle of the motor.
Position of
the snap ring
Page 7 For internal use only
Assembly Instructions CB 280
A14
Install the lock ring for the wear ring.
A13
Heat up the wear ring to 110°C
(230°F). Install it on the shaft.
Tap it down with a plastic hammer.
A15
Gently pull back the wear ring so that the lock ring no
longer is loose.
To keep the lock ring permanent, the wear ring has to
be kept in place against the lock ring, until it is shrinked.
A16
Turn the cylinder block and install it into the shaft end
housing. Be careful not to damage the radial seal.
Use two lifting eyes M12.
Page 8 For internal use only
Assembly Instructions CB 280
See Service Manual
SC-2 Piston ring Assembly
A17
The direction of the piston ring is important!
A18
Install the piston ring on the pistons.
Note! Turn the piston ring according to drawing A17.
A19
Lubricate the piston bores with oil.
Note! Oil cleanliness level important!
A20
Lubricate the piston balancing surface with oil.
Note! Oil cleanliness level important!
Page 9 For internal use only
Assembly Instructions CB 280
A23
Install the piston assembly into the cylinder block.
Note! Make sure to place the roller on top of the O-ring
to avoid damages to the sliding surface.
A22
Install the cam rollers into the pistons.
Check so the cam rollers slide easily.
A24
Position of cam ring mark, seal retainer and shaft end
housing.
Motor sign
!
!
Install above
the O-ring
A21
Check carefully that the cam roller not is damaged.
Flushing
connection
Cam ring mark
Page 10 For internal use only
Assembly Instructions CB 280
A25
Install the first cam ring. Use two lifting eyes M16.
Note! Before you install the cam ring, make sure
that the surfaces between the cam ring and the shaft
end housing is absolutely clean.
A26
Lubricate the holes for the balancing sleeves with oil.
A28
Install the balancing sleeves.
A27
Install the springs for the balancing sleeves.