Upright SB-80, Service & Parts Manual

Page: 43 / 186

SB80 Work Platform - European 3-19
M
AINTENANCE
Section
3.16
3.16 R
EMOVING
E
XTEND
C
YLINDER
NOTE: Refer to “Illustrated Parts Section” (Sec-
tion Six) for more detailed assembly drawings.
NOTE: Removing the extend cylinders requires
approximately 18 m (60 ft.) of space.
IMPOTANT: The extend cylinders are very heavy.
Supporting them requires the use of a fork lift
or overhead crane.
IMPORTANT: Mark hoses and immediately cap all
openings to prevent contamination.
Position machine on a smooth flat surface with axles
extended. Chock wheels.
1. Remove Baffle Covers (both sides).
2. Remove Trunion Pin covers (both sides).
3. Extend the boom approximately 30,5 cm (12 in.)
until the trunion pins are exposed.
Figure 3-18: Removing Trunion Pins
4. Uncouple and plug port BE1 (stamped on Main
Valve Block). This allows Tip Boom only to be
extended.
5. Extend Tip Boom (almost completely) until Four
3/8 x 1-1/4 cap screws are exposed.
Figure 3-19: Extend Tip Boom
6. Remove 3/8 x 1-1/4 cap screws.
NOTE: These screws serve as stops to ensure
proper positioning of the Tip Boom Rod Slide.
7. Retract Tip Boom. Leave rear/upper Cylinder Pin
exposed.
8. Remove snap rings from rear cylinder pin.
9. Remove and cap hoses from upper extend cylin-
der.
10. Remove rear/upper cylinder pin.
Figure 3-20: Remove Rod Slide Weldment
NOTE: Remove Mid Boom wear pads if they inter-
fere when cylinder is removed from boom.
Replace when reinstalling cylinder.
11. Remove 1/4 cap screws.
12. Remove 3/8 cap screws
NOTE: Spacers will be loose. Reinstall them
when replacing cylinder.
13. Rotate Rod Slide Weldment forward. Push Slide
pads on rod forward if necessary.
14. Pull Rod Slide Weldment out from below cylinder.
15. Remove Two trunion pins at rear of cylinder.
Figure 3-21: Remove trunion pins
16. Remove the cap screw which secures the front/
lower cylinder pin.
Extend Boom 12 inches
Trunion Pin Cover
Baffle Cover
Trunion Pins
Extend Tip Boom
3/8 Cap Screws
Spacers
1/4 Cap Screws
Rod Slide Pads
3/8 Cap Screws
Trunion Pins