Snorkel S3010E, Руководство по запчастям и обслуживанию

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Section 3 - Service & Repair Cylinders
Page 3-15
3-8 C
YLINDERS
Lift cylinder
Removal
1. Raise the platform and support it using both safety props, see page 3-3.
the hose and immediately plug the hose to prevent foreign material from entering.
3. Remove the down valve cable from the emergency lower/down valve solenoid.
4. Remove the retaining rings securing the lift cylinder pivot pins
5. Support the lift cylinder using a suitable hoisting device and carefully remove the pivot
pins and remove the cylinder.
Repair / Disassembly
1. Unscrew the head cap from the cylinder barrel & remove the head cap, piston and
shaft assembly from the barrel tube.
2. Unscrew the piston from the shaft.
3. Remove the wiper, gland & ‘o’ ring from the head cap and discard.
4. Remove the guide rings from the piston and discard.
Cleaning and inspection
2. Inspect all the threaded components for stripped or damaged threads.
3. Check the inside surface of the cylinder barrel for scoring or excessive wear.
4. Check the piston and head cap for scoring or excessive wear.
5. Inspect the surface of the shaft for scoring or excessive wear.
Assembly
1. Lubricate and install new wiper, gland and ‘o’ ring to the head cap.
2. Install the head cap onto the shaft.
3. Lubricate and install new guide rings to the piston & re-install the piston onto the shaft.
4. Install the shaft assembly into the cylinder barrel and tighten the head cap.
Installation
1. Installation is the reverse of removal.
2. Be sure to operate the lift cylinder several times over it’s full cycle to expel any trapped
air and check for leaks.