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16. Turn fuel control dial (4) to the full speed (MAX) position,
repeat Steps 7 to 10 for 3 to 5 minutes, then check again that the
hydraulic oil temperature monitor is displaying the correct
temperature.
If it is not displaying the correct temperature, repeat Steps 7 to
10 for 3 to 5 minutes until hydraulic oil temperature monitor (7)
displays the correct temperature.
• (A) Display when temperature is correct: Monitor background
(C) is blue.
• (B) Display when temperature is low: Monitor background (C)
is white.
For both normal temperatures and cold temperatures, carry out the
following operation.
17. Check that fuel control dial (4) is at a point midway between
low idling (MIN) and full speed (MAX).
If it is not at the midway position, set it to the midway position
and run the engine at a mid-range speed before operating.
18. Before starting operations, repeat the following operations
slowly 3 to 5 times to circulate warm oil through the control
circuits.
• Boom derricking operation: RAISE (D) to/from LOWER (C)
• Boom telescoping operation: EXTEND (A) to/from RETRACT
(B)
• Winch operation: RAISE (E) to/from LOWER (F)
When carrying out swing operations, release swing lock switch
(2), check that swing lock monitor (19) goes out, and then
operate the swing.
• Swing operation: Left (G) to/from Right (H)
• Travel (Lo) operation: FORWARD to/from REVERSE
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