Snorkel XRT33-sn1000-2299ANSI - Manual (Page 3)

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1. Unhook controller from front guardrail. Firmly
grasp controller hanger in such a manner that the
interlock lever can be depressed, while performing
the following checks from the ground.
2. Turn controller key switch clockwise to ON.
Turn fully clockwise to start engine, releasing the
key once the engine starts.
Note: If the engine is cold, on dual fuel models,
depress and hold the choke button in while start-
ing the engine. On diesel models, depress and hold
the glow plug button for 6 seconds to engage the
glow plugs.
3. Position drive/lift switch to DRIVE position.
4. With the speed range switch first in HIGH
TORQUE and then again in HIGH SPEED
depress the interlock lever and slowly push the
control lever to FORWARD then REVERSE
positions to check for speed and directional
control. The farther you push or pull the control
lever the faster the machine will travel.
Note: On 4-wheel drive machines, the Speed Range
Switch has three positions; HIGH TORQUE,
Middle Position (not labeled), and HIGH SPEED.
Perform step 4 for each speed.
5. Push steering switch RIGHT then LEFT to check
for steering control.
6. Re-hook controller on front guardrail.
7. Turn the platform/chassis switch to CHASSIS.
8. Push the throttle button in. Push chassis raise
button to elevate platform while pushing the tilt
sensor (Figure 1) off of level. The platform should
only partially elevate and the tilt alarm should
sound. If the platform continues to elevate and/or
there is no alarm STOP and remove the machine
from service until it is repaired.
9. Release the tilt sensor and fully elevate platform.
10. Visually inspect the elevating assembly, lift cylin-
der, cables and hoses for damage or erratic
operation. Check for missing or loose parts.
11. Lower the platform partially by pushing in on the
chassis lower switch, and check operation of the
audible lowering alarm.
12. For XRT27, open the chassis emergency lowering
valve (Figure 4) to check for proper operation by
pulling and holding the knob out. Once the
platform is fully lowered, close the valve by
releasing the knob.
13. For XRT33, operate Emergency down system by
holding control valve in closed position then
pumping up pressure to release cylinder valves.
Release control valve to stop lowering.
14. Turn the platform/chassis switch to PLATFORM.
15. Mount the platform making sure the gate is latched.
16. Position drive/lift switch to LIFT.
17. Depress the interlock lever and slowly push the
control lever to RAISE to raise the platform, fully
actuate the control lever to check proportional lift
speed. Elevate the platform to 12 feet (3.7 m).
18. Slowly pull control lever to DOWN position to
lower platform. Check that lowering alarm sounds.
19. Turn controller key switch to OFF, push the emer-
gency stop button and dismount the platform.
20. Close and secure module covers.
Figure 3: Controller
Choke / Glow Plug Button
Figure 2: Controller
Steering Switch Interlock Lever
Control Lever
Emergency
Stop Switch
Lift/Drive
Switch Key Switch
Drive Enable
Indicator
Speed Range
Switch