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Cr
ane
op
er
ation
24. Crane operation
24-4 Boom extension and retraction
(321A-1063-0E)
The boom of this machine is 6-section telescoping type. It is operated using the boom extension/retraction lever and the
boom sections 4, 5 and 6 extension/retraction button. If it is not possible to extend or retract the boom sections 4, 5 and
6, move the boom extension/retraction emergency switch to the "release" position and operate the boom extension/
retraction lever to extend/retract the boom sections 4, 5 and 6 while pressing the boom sections 4, 5 and 6 extension/
retraction button.
24-4-1 Extension and retraction of boom sections 2 and 3
(T217321-031-0E)
:
The boom is retracted when the boom extension/retraction lever is pulled upward.
:
The boom is extended when the boom extension/retraction lever is pressed downward.
(1)
Extending boom sections 2 and 3
1)
Confirm that the main and auxiliary hooks are lowered sufficiently below the boom.
2)
Tilt the boom extension/retraction lever in the direction of extending the boom or depress the boom extension/
retraction pedal forward.
NOTE
For shock reduction at the time of switching, operate the boom at a slow extension speed after the boom is
extended to about 14.5m.
(2) Retracting boom sections 2 and 3
1)
Confirm that the main and auxiliary hooks are not lowered more than necessary below the boom.
2)
Tilt the boom extension/retraction lever in the direction of retracting the boom or depress the boom extension/
retraction pedal backward.
NOTE
For shock reduction at the time of stopping, operate the boom at a slow retraction speed after the boom is
retracted to about 7.5m.
Summary of Contents for PREMIUM CITYRANGE CR-200RF
Page 2: ...218711 背厚 14 5 mm 中 ...
Page 14: ... 12 4 Dimensions T217591 021 0E Specification of CR 200Rf ...
Page 16: ... 14 MEMO ...
Page 24: ... 22 MEMO ...
Page 30: ... 4 MEMO ...
Page 36: ... 10 MEMO ...
Page 38: ... 12 3 General operation devices 2 Outside the cab ...
Page 60: ... 34 MEMO ...
Page 74: ... 48 MEMO ...
Page 82: ... 56 7 Air conditioner 7 6 Display when errors are detected T217921 020 0E ...
Page 120: ... 94 MEMO ...
Page 129: ... 102 MEMO ...
Page 138: ... 111 17 Drive operation devices Drive operation devices ...
Page 139: ... 112 17 Drive operation devices ...
Page 153: ... 126 17 Drive operation devices ...
Page 154: ... 127 17 Drive operation devices Drive operation devices ...
Page 237: ... 208 21 Crane operation devices 21 Crane operation devices 061A 0005 0E 1 Inside the cab ...
Page 238: ... 209 21 Crane operation devices Crane operation devices ...
Page 239: ... 210 21 Crane operation devices 2 Outside the cab ...
Page 259: ... 230 22 Crane operation when the outriggers are used ON OFF ...
Page 299: ... 270 24 Crane operation NOTE Extension retraction sequence for each boom length ...
Page 320: ...26 Preoperational checks Pre drive checks 290 ...
Page 321: ...Preoperational checks Pre drive checks 26 Preoperational checks Pre drive checks 291 ...
Page 322: ...26 Preoperational checks Pre drive checks 292 ...
Page 329: ...Preoperational checks Pre drive checks 26 Preoperational checks Pre drive checks 299 ...
Page 330: ...26 Preoperational checks Pre drive checks 300 ...
Page 331: ...Preoperational checks Pre drive checks 26 Preoperational checks Pre drive checks 301 ...
Page 332: ... 302 MEMO ...
Page 340: ... 310 MEMO ...
Page 342: ...899 92187110 ...