Snorkel AB62RT - Manual (Page 3)

3
Introduction
This manual covers the operation of internal combustion
powered models of the AB62 Articulated Boom. This
manual must be stored on the machine at all times.
Pre-Operation and Safety
Inspection
Carefully read, understand and follow all safety
rules, labels, and operating instructions, then
perform the following steps each day before use.
Perform a complete visual inspection of the entire unit
prior to operating. Check the following areas for discrepancies:
1. Open covers and check hydraulic components / hoses
for damage or leaks. Check electrical components /
wiring for damage or loose connections.
2. Inspect chassis, axles, hubs, and steering linkage for
damage, deformation, buckled paint, loose or missing
hardware, and cracked welds.
3. Check tires for damage. Check for punctures, and
inflation (air filled only); tire pressure must be 5.5 bar
(80 psi).
4. Check all hoses / cables for wear.
5. Inspect elevating assembly for damage, deformation,
buckled paint, loose or missing hardware, and
cracked welds.
6. Inspect platform and guardrails for damage, deforma-
tion, buckled paint, loose or missing hardware, and
cracked welds. Ensure that gate operates freely and
latches securely.
7. Check Hydraulic fluid level with platform fully lowered.
8. Check battery fluid level (see Battery maintenance,
page 9).
9. Check fuel level, add fuel if necessary (see Fueling, page 9).
10. Ensure that radiator is cold, check coolant level. Add
if necessary.
NEVER remove the cap from a hot radiator. Hot
coolant can cause severe burns.
SYSTEM FUNCTION INSPECTION
Note: Refer to Figures 1 through 4 for chassis and
platform control locations.
1. Before performing the following tests, check area
around machine and overhead for obstructions, holes,
drop-offs, and debris.
2. Turn chassis key switch to chassis, and turn on
(rotate clockwise) emergency stop switches at the
chassis control panel and at the platform control
panel.
3. Retract Locking Bolt. See Figure 1.
4. Press the engine start button to crank the engine;
release when engine starts. If engine is cold: press
and hold the choke button while starting gasoline /
propane models; press the glow plug button and hold
for six seconds prior to starting diesel models.
5. Push in the chassis emergency stop button engine
should stop. Repeat for platform emergency stop
button. Return both emergency stop buttons to the
ON position, and start engine.
6. Operate each function switch to raise / lower, extend /
retract, rotate left / right, each section of the elevating
assembly and observe the operation of the machine.
All functions should operate through full cycle
smoothly. (Make sure that the Boom Speed Control
is not at zero).
7. Turn chassis key switch to platform.
8. Mount the platform, close sliding rail, and attach
approved fall restraint to designated platform anchorage
point (if required by National Legislation). Attach only
one fall restraint to each point.
9. Start the engine.
10. Without depressing the foot switch, move the drive
control handle, machine should not function.
11. Depress the foot switch and move the drive control
handle forward and reverse. Observe that proportional
functions operate smoothly, and that brakes apply
quickly after control is released.
12. While depressing foot switch, operate steer switch to
left and right. Observe that steering wheels turn
properly.
13. While depressing foot switch, turn function speed
control knob to desired setting, and operate boom
controls. Observe that boom operates smoothly, and
that upper boom, jib, turret rotation, platform level,
and platform rotation controls operate proportionally in
conjunction with function speed control knob. Observe
that platform maintains level when boom is elevated.
14. With the upper boom elevated (0.3 m) one foot,
operate drive control handle. Observe that drive speed
is limited to creep (0,3 m [1 foot] per second). Lower
upper boom to stowed position.
15. Press the service horn button. Observe that horn is
audible.
DO NOT use a machine that is damaged or
malfunctioning. Tag and remove the unit from
service until it is repaired.
Figure 1: Locking Bolt