Snorkel 460SJ Operator's Manual page 85

Frequent Inspection and Maintenance – Every 90 Days or 150 Hours
Item
Lower Controls
Control switch in the lower controls
position
Station selector switch in the upper
controls position
Engine Start – Stop
Throttle High – Low
Turntable CW – CCW
Boom elevation Up – Down
Boom Extend – Retract
Jib Up – Down
Jib rotation CW – CCW
Platform level Up – Down
Platform rotation CW – CCW
Emergency power, all functions
Emergency stop
Booms
Structural
Lift cylinder pin caps and tie wire
Hydraulic tubes and hoses
Extension cylinder pin caps and
bolt retainer
Extension cylinder and holding
valve
Jib boom pin caps and snap rings
Jib cylinder pin caps and snap rings
Jib cylinder and holding valve
Slave level cylinder pin caps and tie
wire
Slave level cylinder and holding
valves
Hose carrier tube and support
Plastic hose track
Electrical wires
Decals and placards
Extension System
Cylinder pins/fittings
460SJ – 1433685
Procedure
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for proper operation
Check for damage and cracked welds
Verify that all fasteners are in place
and are tight
Check for leaks, wear, and damage
Verify that all fasteners are in place
and are tight
Check for leaks, wear, damage, and
for proper operation
Verify that all fasteners are in place
and properly installed
Verify that all fasteners are in place
and properly installed
Check for leaks, wear, damage, and
for proper operation
Verify that all fasteners are in place
and are tight
Check for leaks, wear, damage, and
for proper operation
Check for residue buildup/proper
operation
Check for wear and damage
Check for wear and damage
Check for damage and readability
Order replacements as necessary
Check for wear and damage
Appendix C – Inspection Checklists
Information
With selector in the lower
controls position, upper
controls do not work
With selector in the upper
controls position, lower
controls do not work
P/F/R