SkyTrak 8042 Service Manual - Manual (Page 182)

3.121 Model 8042, 10042, 10054 Legacy Rev. 03/04
Boom
65. Clean up all debris, hydraulic fluid, etc., in, on, near
and around the vehicle.
66. Start the engine and operate all boom functions
several times. Check the chain tension again and
adjust as necessary. Check for leaks, and check the
hydraulic fluid level in the tank; add fluid if required.
3.7 BOOM CHAINS - FOUR SECTION
BOOM (10054)
This vehicle uses double extend chains to extend the
intermediate boom, a single extend chain to extend the
inner boom and two single retract chains to retract the
intermediate booms and the inner boom. The two
intermediate extend chains and both retract chains are
constructed of 3/4" pitch links with 6 x 6 leaf lacing. The
inner boom extend chain is constructed of 1" pitch links
with 6 x 6 leaf lacing.
Note: DO NOT attempt to repair a chain. Replace a
stretched or damaged chain with a new part. Always
replace both the chain and the clevis. It is recommended
that when any chain is replaced, that all the chains and
clevis’ be replaced at the same time.
3.7.1 Boom Chain Inspection
Under normal operating conditions the extend chains will
need to be inspected every 250 hours of operation. The
retract chain will need to be exposed and inspected every
1000 hours of operation. Environmental conditions and
dynamic impulse/shock loads can drastically affect
normal operating conditions and require more frequent
inspection intervals.
WARNING:
Avoid prolonged engine
operation in closed areas without adequate
ventilation. Failure to properly ventilate
exhaust fumes can result in death or serious
personal injury.
WARNING:
Hydraulic oil leaking under
pressure can penetrate the skin and cause
severe personal injury. DO NOT use your hand
or any part of your body to check for hydraulic
leaks. When checking for hydraulic leaks, wear
safety glasses and gloves to help provide
protection from spraying hydraulic oil. Use a
piece of cardboard or paper to search for leaks.
WARNING:
Worn pins, stretched or
cracked links or corrosive environments can
cause chain failure. A chain failure could result
in uncontrolled boom movement, loss of load
or vehicle instability, and could cause death or
serious injury and/or property damage.
250
OH23902
MS21702