4-55
Published 11/26/2014, Control # 447-05
RT770E SERVICE MANUAL
BOOM
4
GROVE
degree offset position align in the offset links. Install
the offset pins and clip pins.
c.
Slowly elevate and telescope the boom at the same
time so that the extension does not move off of the
blocking until the offset links take the full weight of
the extension.
d.
Reeve the hoist cable as described under normal
erecting procedures.
Boom Extension Alignment Device
Adjustment
1.
Ensure the boom extension and retraction cables are
properly adjusted. If necessary, adjust the cables.
2.
Fully retract the boom.
3.
Following the boom installation procedures, install the
pins into the boom attachment lugs on the right side of
the boom nose and secure in place with the retainer
clips.
4.
Following the boom installation procedures, swing the
boom extension around and install the pin in the upper
left boom extension lug and secure in place with the clip
pin.
If the pin cannot be installed because of lateral
misalignment, adjust the upper cross strut adjustment
screw on the swingaway adapter to align the holes.
5.
Extend the boom extension alignment jack until the
lower left side boom nose and boom extension adapter
lugs are aligned; install the attachment pin into the lower
left lug and attachment fitting of the boom nose. Install
retainer clip in attachment pin.
If the attachment pin cannot be installed because of
lateral misalignment, adjust the lower cross strut
adjustment screw on the extension adapter to align the
holes.
6.
Secure the adjustment bolt in place by tightening the
collar clamp.
Swingaway Mounting Adjustment
The following procedures may be used to adjust the existing
installation or for installing a new swingaway and/or stinger.
For the referenced details in text, refer to Figure 4-62.
1.
With the swingaway base laying on the ground or
cribbing, use an adequate lifting device to place the
stinger on the side of the base and install the one attach
pin.
2.
Raise the sheave end of the stinger until the attach pin
installed in step 1 is loose. Install the ramp wear pad
Figure 4-62 (Detail C) on the bottom of the stinger and
shim to provide a clearance of 12 mm (0.5 in) between
wear pad and ramp on swingaway base.
3.
Install the shock wear pad Figure 4-62 (Detail C) on the
extension base bracket. Shim the wear pad to provide a
clearance of 3 mm (1/8 in) between shock wear pad and
ramp wear pad installed in step 2.
4.
With the stinger supported on the base ramp wear pad
and held tight against the shock wear pad, adjust the
stinger latch hook Figure 4-62 (Detail E) so that a 4 mm
(5/32 in) clearance is maintained between the hook and
the latch bar.
5.
Remove the stinger from the side of the extension base.
6.
Disengage the boom stop and fully retract the boom.
7.
Mount the extension base of the right side on the boom
base and install the pins attaching the extension base to
the boom nose.
8.
Loosen the front and rear stowage bracket attaching
hardware.
9.
Lift the sheave end of the extension base until the
attachment pins installed in step 7 are loose. Refer to
Figure 4-62 (Detail D) (rear stowage bracket) and adjust
the lower mount and the pin mount to maintain a loose
condition of the attachment pins. Tighten all rear
stowage bracket attaching hardware.
10.
Refer to Figure 4-62 (Detail A) (front stowage bracket)
and adjust the main hanger, upper hanger, and lower
support to maintain a loose condition of the attachment
pins.
11.
Move the extension base away from the boom base and
mount the stinger on the extension base using one
attach pin. Position extension base on stowage brackets
on side of boom.
12.
Lift up on sheave end of stinger until attachment pin is
loose and stinger is 3 mm (1/8 in) from shock wear pad
at the ramp Figure 4-62 (Detail C).
13.
Refer to detail B (stinger front stowage bracket) and
adjust the front mount and hanger to maintain the
attachment pin in a loose condition.
14.
Refer to Figure 4-62 (Detail D) (rear stowage bracket)
and adjust the stinger upper hanger and lower hanger to
maintain the attachment pin in a loose condition.
15.
Some final adjustment of the stinger latch may be
required. With the extension base and stinger in the final
stowed position on the stowage brackets, ensure there
is approximately a 3 mm (1/8 in) clearance between the
shock wear pad and the ramp wear pad on the stinger
Figure 4-62 (Detail C). In addition, the stinger latch must
be free (approximately a 1.5 mm (0.06 in) clearance
between the surfaces of the latch hook and the latch bar.
Содержание Grove RT770E
Страница 3: ...Service Maintenance Manual Grove RT770E ...
Страница 4: ......
Страница 40: ...INTRODUCTION RT770E SERVICE MANUAL 1 26 Published 11 26 2014 Control 447 05 THIS PAGE BLANK ...
Страница 124: ...HYDRAULIC SYSTEM RT770E 2 84 Published 11 26 2014 Control 447 05 THIS PAGE BLANK ...
Страница 126: ...ELECTRICAL SYSTEM RT770E SERVICE MANUAL 3 2 Published 11 26 2014 Control 447 05 FIGURE 3 1 7983 ...
Страница 149: ...4 5 Published 11 26 2014 Control 447 05 RT770E SERVICE MANUAL BOOM 4 GROVE FIGURE 4 2 ...
Страница 150: ...BOOM RT770E SERVICE MANUAL 4 6 Published 11 26 2014 Control 447 05 FIGURE 4 2 continued ...
Страница 151: ...4 7 Published 11 26 2014 Control 447 05 RT770E SERVICE MANUAL BOOM 4 GROVE FIGURE 4 2 continued ...
Страница 152: ...BOOM RT770E SERVICE MANUAL 4 8 Published 11 26 2014 Control 447 05 FIGURE 4 2 continued ...
Страница 153: ...4 9 Published 11 26 2014 Control 447 05 RT770E SERVICE MANUAL BOOM 4 GROVE FIGURE 4 2 continued ...
Страница 154: ...BOOM RT770E SERVICE MANUAL 4 10 Published 11 26 2014 Control 447 05 FIGURE 4 2 continued ...
Страница 224: ...5 24 Published 11 26 2014 Control 447 05 HOIST AND COUNTERWEIGHT RT770E This Page Blank ...
Страница 276: ...POWER TRAIN RT770E 7 30 Published 11 26 2014 Control 447 05 THIS PAGE BLANK ...
Страница 300: ...UNDERCARRIAGE RT770E 8 24 Published 11 26 2014 Control 447 05 FIGURE 8 28 ...
Страница 321: ...9 9 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 7114 17 1 4 2 7114 20 7114 10 3 FIGURE 9 1 ...
Страница 323: ...9 11 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 7114 17 11 12 7114 9 FIGURE 9 2 8130 1 ...
Страница 329: ...9 17 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 42 7114 25 7114 24 41a 7649 21 FIGURE 9 5 40 8130 2 ...
Страница 331: ...9 19 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE FIGURE 9 6 8130 1 51 52 50 ...
Страница 336: ...LUBRICATION RT770E 9 24 Published 11 26 2014 Control 447 05 72 73 74 73 74 72 73 74 73 74 FIGURE 9 8 8133 ...
Страница 343: ...9 31 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 84 7114 30 FIGURE 9 11 85 7115 33 8130 2 ...
Страница 347: ...9 35 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 7649 22 101 100 FIGURE 9 13 8130 2 ...
Страница 348: ...LUBRICATION RT770E 9 36 Published 11 26 2014 Control 447 05 FIGURE 9 14 102 8130 2 ...
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