69
Repair instructions
16. Knock in the load pin as far as necessary to free
the pin (1).
1
17. Pull out the pin.
18. Pull out the excentric piston.
19. Tap the eccentric piston lightly on a wooden sur-
face to remove the spring pin (1). Inspect the eccen-
tric piston for scoring, distortion, or damage that may
cause it to leak or bind in the housing.
1
20. Using a screwdriver, pry out the eccentric piston
seal. Clean all surfaces and check for damage that
may cause leaks. Replace parts as necessary.
21. Install a new eccentric piston seal with the steel
edge facing inward, as shown. Use special tool
884793.
Assembly, models
280, 285, 285A, 290 and 290A
Oil all moving parts prior to assembly.