MEGA Corp. MHT175-CAT777-OPS-1 - Manual (Page 35)

MHT175-CAT777(G)-1
1 Aug 2012
SECTION 6
Appendix
6-9
MHT175-CAT777(G)CL-1
1 Aug 2012
5. When opening the dump doors they should not be
opened up all the way to keep material from
flowing underneath the trailer tires. The doors
should be opened slowly by bumping the dump
lever. (Three to four bumps on the dump lever is
all that is required). Use intermediate door position
system if equipped.
6. The operator should string out the load so that the
trailer doesn’t ride up on the coal that is being
dumped.
Hitch ball oscillations greater than 12° will result
in hitch ball contact with hitch socket upper
retaining plate. Repeated contact may cause failure
of upper hitch socket retaining plate bolts and
reduce service life of the hitch ball assembly.
7. Once the trailer has been dumped the operator can
then allow the truck to shift as necessary while
he/she is closing the doors.
8. Once the doors have reached the closed position
the operator must then return the dump lever to the
hold position with no hesitation in the float setting.
N-8