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Summary of Contents for Hägglunds CB 280
- Page 1 Hägglunds Drives AB SC-2.3 SE-890 42 Mellansel Sweden 2008-11-20 Tel: +46 (0)660 870 00 E-mail: aftersales@se.hagglunds.com This material is strictly for internal use within the Hägglunds Drives Group only Assembly Instructions Compact CB 280...
- Page 2 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!
- Page 3 Assembly Instructions CB 280 Work to be done before cleaning the motor parts: Important preparation before assembly It is very important to clean the cam ring good before assembling! The highest cleanliness of the motor parts and of the workplace are basics to ensure the smooth functioning...
- Page 4 Assembly Instructions CB 280 Install the Ø 1 mm orifi ce in the fl ushing connection Install the flushing connection plug (F1) G 1/4". (F1) in the shaft end housing. Allen key 6 mm, torque 30 Nm (22 lbf·ft) Note! This orifi ce is only used when fl ushing of the seal is needed, normally plugged.
- Page 5 Assembly Instructions CB 280 Install the dust seal in to the shaft end housing. Place the shaft end housing on supports (x3). Tool D-30204. Equally devided. Tool D-30205. Tap down the radial lip seal, turn the seal according Lubricate the seal with grease, Texaco Multifac EP2 to drawing A4.
- Page 6 Assembly Instructions CB 280 Position of the snap ring Lubricate the O-ring with oil and install it in the shaft Note! The snap ring on the bearing shall be towards end housing. the middle of the motor. Note! The screw joint on the motor works as a frictional connection, so no oil are allowed on the surface.
- Page 7 Assembly Instructions CB 280 Heat up the wear ring to 110°C Install the lock ring for the wear ring. (230°F). Install it on the shaft. Tap it down with a plastic hammer. Gently pull back the wear ring so that the lock ring no Turn the cylinder block and install it into the shaft end longer is loose.
- Page 8 Assembly Instructions CB 280 See Service Manual SC-2 Piston ring Assembly The direction of the piston ring is important! Install the piston ring on the pistons. Note! Turn the piston ring according to drawing A17. Lubricate the piston bores with oil.
- Page 9 Assembly Instructions CB 280 Check carefully that the cam roller not is damaged. Install the cam rollers into the pistons. Check so the cam rollers slide easily. Cam ring mark Motor sign Flushing Install above connection the O-ring Install the piston assembly into the cylinder block.
- Page 10 Assembly Instructions CB 280 Install the fi rst cam ring. Use two lifting eyes M16. Lubricate the holes for the balancing sleeves with oil. Note! Before you install the cam ring, make sure that the surfaces between the cam ring and the shaft end housing is absolutely clean.
- Page 11 Assembly Instructions CB 280 Lubricate the holes in the valve plate Install the valve plate gently, so no balancing pistons with oil and install the balancing pistons. are falling out when you turn the valve plate. Note! Always treat the sliding surfaces on the valve Allen key 5 mm.
- Page 12 Assembly Instructions CB 280 Important! Place the lifting arrangement on the top Turn over the connection block and lift it on the top of Lubricate the surface on the cylinder block with oil. the motor. Use two lifting eyes M12. The roll pin holes should correspond to the threaded holes in the shaft end housing.
- Page 13 Assembly Instructions CB 280 10 mm (0.4 in) Lubricate the 2 roll pins and Drive down the roll pins 10 mm (0.4 in). install them with the slot in tangential direction. Remove grease that are superfluous. See Service information No. 8 Position of the axial-radial bearing.
- Page 14 Assembly Instructions CB 280 Install the axial bearing. Knock down the radial bearing Lubricate with hydraulic oil. with a plastic hammer. Note! Oil cleanliness level important. Knock only on the inner race. Note! Before use: make sure that the tool is clean!
- Page 15 Assembly Instructions CB 280 Rotate the motor a couple of turns Rotate the cylinder block a couple of turns in order Lubricate the O-ring for the wear ring with oil to align the bearing. and install it. Install the wear ring. Tap it Lubricate the O-ring with down against the bearing.
- Page 16 Assembly Instructions CB 280 Install the bearing retainer. Oil the threads. Lock the cylinder block according to the picture. Tighten the retainer screws. Allen key size 10 mm. Torque 136 Nm (100 lbf·ft). Install the G1" plug with a new O-ring into the bearing Tighten the four cover screws firmly, then open them retainer.
- Page 17 Assembly Instructions CB 280 Place a support for the puller on to the bearing retainer. Place and install the puller tool T-000022. Tighten the bearing to a torque of 160–180 Nm (118–133 lbf·ft). Lift up the motor slightly from the supports.
- Page 18 Assembly Instructions CB 280 Lower down the motor. Drawing shows the tightening sequense. Remove all the lifting arrangements and the puller. Place a dial indicator with magnetic shoe on the Tighten the four M20 Hexagon head screws No. 1 to 4 centre of the bearing retainer.
- Page 19 Assembly Instructions CB 280 See Service information No. 15 Rotate the cylinder block 360 degrees. The axial run The drawing shows the correct position of the seal. out between the bearing and the connection block must not exceed 0.03 mm. If the axial run out is not obtained, loosen the screws and make the adjustment once again from A52.
- Page 20 Assembly Instructions CB 280 Lubricate the radial seal lip with grease, Install the O-ring into the seal retainer. Multifac EP2 or equivalent. Protect the surfaces against rust. Use Shell Ensis SX Install the seal retainer. or equivalent rust protection fl uid.
- Page 21 Assembly Instructions CB 280 Lubricate the threads with oil and Install the O-ring for the end cover. tighten the screws. Allen key 10 mm. Torque 136 Nm (100 lbf·ft). Protect the surfaces against rust. Use Shell Ensis SX Install the end cover, lubricate and install the screws or equivalent rust protection fl...
- Page 22 Assembly Instructions CB 280 Lubricate with grease and fi t new Install the two plugs. Torque 50 Nm (37 lbf·ft). O-rings into the fl anges for the main connections and install them. Allen key 1/2". Torque 125 nm (92 lbf·ft).
- Page 23 Assembly Instructions CB 280 Install the three test connections. Install the M20 plugs (x4) covering the FRP holes at Torque 30 Nm (22 lbf·ft). the shaft end. Allen key 10 mm. Torque 50 Nm (37 lbf·ft). Install the remaining cover screws.