OPERATING CONTROLS AND PROCEDURES GRT8100 OPERATOR MANUAL
3-8 Published 3-25-2020, Control # 595-10
High Exhaust System Temperature
The High Exhaust System Temperature (HEST) Indicator
(26) Figure 3-14 is located on the CCS Main Screen display.
During exhaust system cleaning it is possible for engine
exhaust to reach temperatures exceeding 650° C (1200° F).
The HEST indicator will illuminate red to warn when
temperatures reach 675° C (1247° F) and will stay on until
temperatures fall below 625° C (1157° F).
A warning light near the tailpipe will flash during exhaust
system cleaning when high exhaust temperatures exist.
For more information on the exhaust system cleaning
process, refer to Exhaust System Cleaning (Tier 4 Engines
Only), page 3-7.
CONTROL SEAT ASSEMBLY
Item Description Item Description
1
Boom Lift/Main Hoist Control Lever
15 AC/Heater Vents
2
Swing/Telescope or Swing/Auxiliary Hoist
Control Lever
16 Seat Frame Slide Lever
3 Main Hoist Enable Switch 17 Armrest Adjustment Button(s) (Underside)
4 Boom Up Bypass 18 Seat Height Adjustment Lever
5 Boom Lift Function Enable Switch 19 Limit Bypass Switch - Keyed
6 Jog Dial 20 Emergency Stop Switch
7
Outrigger Function Enable Switch
21 Level Indicator
8
Differential Lock On/Off (Optional)
22
Deadman Switches (Optional) (Dual Axis
Control Levers only)
9 Rear Steer Switch 23 Hoist Speed Toggle Switches
10 Auxiliary Hoist Enable Switch (Optional) 24 Horn
11 Boom Telescope Enable Switch 25
Free Swing Button
FIGURE 3-6
8044-2
5
3
9
6
26
16
13
18
12
15
14
17
17
19
21
20
7
1
2
8
10
11
23
22
24
25
23
22
4
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