SET-UP AND INSTALLATION GRT8100 OPERATOR MANUAL
4-32 Published 3-25-2020, Control # 595-10
Stowing
NOTE: When removing the insert, the boom extension fly
section of the boom extension may be in the
erected position or folded against the boom
extension base section.
1. Fully extend and set outriggers.
2. Position boom over front of crane.
3. Fully retract the boom.
4. Set offset to 0° if not already done so. Refer to the
applicable procedures in this section.
5. Lower boom to minimum elevation.
6. Remove cable retainer pins and clip pins from boom
extension tip and mast assembly (if required). Remove
hoist cable from boom extension sheave and/or mast.
Install cable retainer pins and clip pins.
7. Disconnect anti-two block electrical connections
between the insert and the boom nose and boom
extension. If required, disconnect hydraulic connections
between the insert and the boom nose and boom
extension.
8. If required, stow the boom extension fly section by
performing step 13 under Stowing Boom Extension,
page 4-24.
9. Extend boom approximately 1.22 m to 1.52 m (4 ft to
5 ft). Lower boom until sheave is on ground.
10. Block under insert approximately 2.4 m to 3.0 m (8 ft to
10 ft) forward of boom nose.
11. Remove retainer clips from four pins in the attachment
and anchor fittings. Remove attachment pins and stow
in holders on insert.
12. Retract boom, disengaging attachment fittings on boom
nose from anchor fittings on insert.
13. Attach a hook to the hoist cable.
14. Attach hoist cable hook to lifting lugs on insert. Lift
assembly and reposition blocking approximately 2.4 m
to 3 m (8 ft to 10 ft) forward of insert to boom extension
attachment points.
15. While supporting insert with hoist cable, remove retainer
clips from four pins attaching insert to boom extension.
Remove four pins.
16. Remove insert and position to one side of crane.
17. Position boom and extend to engage boom nose with
boom extension. Install four attachment pins and
retainer clips removed in step 15.
18. If required, stow the boom extension by performing
procedures 10 through 35 under Stowing Boom
Extension, page 4-24.
CONNECTING AND DISCONNECTING
BOOM EXTENSION
Connecting
Making Hydraulic Connection Between Boom
Extension and Main Boom
When working only with main boom for long periods of time,
disconnect hydraulic connection between hose drum and
main boom. This prevents unnecessary hydraulic hose
reeling and unreeling.
If hoses are stowed on boom base holder, release hose
drum (4) lock pin. Pull hydraulic hoses toward the boom
nose. Anchor hydraulic couplings (1) at the boom nose
holder (2). Route hydraulic hoses through guide rollers (3).
1. Unwind hoses on boom extension base section.
2. Remove dust caps from couplings on boom extension
base section and drum hoses.
3. Connect boom extension base section hoses to drum
hoses. Do not detach drum hoses from boom nose
holder.
WARNING
If hose couplings are detached from boom after hose
drum lock pin has been released, do not release hose
couplings until re-attached to boom. If hose couplings are
released after being detached from boom, hoses will
spring back uncontrollably due to hose drum spring force.
To Next Page
Loading...
Need help?
General
