4-104-10
Pre-Operating ChecksPre-Operating Checks
Make sure all cab glass, mirrors and lights are clean. Test all controls to ensureMake sure all cab glass, mirrors and lights are clean. Test all controls to ensure
they are functioning properly. Select 'REVERSE' momentarily on the transmissionthey are functioning properly. Select 'REVERSE' momentarily on the transmission
shift selector to make sure the reverse alarm sounds.shift selector to make sure the reverse alarm sounds.
1. Transmission - Hot Oil Level -1. Transmission - Hot Oil Level -The parking brake must be applied and theThe parking brake must be applied and the
road wheels securely blocked while carrying out this check. With the engineroad wheels securely blocked while carrying out this check. With the engine
idling, transmission in 'NEUTRAL' and at normal operating temperature, the topidling, transmission in 'NEUTRAL' and at normal operating temperature, the top
of the oil column should be visible in the sight gauge. Add oil if low. If the top ofof the oil column should be visible in the sight gauge. Add oil if low. If the top of
the column is above the sight gauge, the transmission is overfull and oil shouldthe column is above the sight gauge, the transmission is overfull and oil should
be drained.be drained.
2. Body and Rear Brake Cooling Hydraulic Tank - Hot Oil Level -2. Body and Rear Brake Cooling Hydraulic Tank - Hot Oil Level -Operate theOperate the
body hoist cylinders to their fully-extended positions to charge all cylinders andbody hoist cylinders to their fully-extended positions to charge all cylinders and
lines then lower the body. With the engine running, and body fully lowered, the oillines then lower the body. With the engine running, and body fully lowered, the oil
level should show in the top sight gauge. Add oil if low. Under all conditions thelevel should show in the top sight gauge. Add oil if low. Under all conditions the
bottom sight gauge should show full.bottom sight gauge should show full.
3. Steering and Braking Hydraulic Tank - H3. Steering and Braking Hydraulic Tank - Hot Oil Level -ot Oil Level -With the engineWith the engine
running, oil at operating temperature and accumulators charged, oil must berunning, oil at operating temperature and accumulators charged, oil must be
between the top and middle sight gauges. Shut down the engine and operate thebetween the top and middle sight gauges. Shut down the engine and operate the
steering left and right to discharge steering accumulator. Operate treadle valvesteering left and right to discharge steering accumulator. Operate treadle valve
continuously to discharge braking accumulators. Oil should show in the top sightcontinuously to discharge braking accumulators. Oil should show in the top sight
gauge.gauge.
BRAKE FUNCTION CHECKSBRAKE FUNCTION CHECKS
In addition to the above checks, the following brake function checks can beIn addition to the above checks, the following brake function checks can be
carried out to determine if both the service and emergency brake systems arecarried out to determine if both the service and emergency brake systems are
functional before operating the machine.functional before operating the machine.
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