ADJUSTING MCS GATE OPENINGS (M917A1 WITH MCS AND M917A2 WITH MCS)
Use extreme caution when adjusting MCS gate openings. NEVER adjust gate
openings when gates are open.
Keep hands and feet away from gate openings at all times.
Failure to comply may result in personnel injury.
Adjust MCS gate openings with engine on and MCS air system pressurized.
When dump truck is transporting a load or when it is parked, MCS gates must be kept locked. Gates are
locked by placing locking pins (Figure 7, Item 2) in top hole in adjustment tubes (Figure 7, Item 1).
In preparation for controlled spreading, with dump body down and MCS gates closed, remove locking pins
(Figure 7, Item 2) from top hole in adjustment tubes (Figure 7, Item 1).
Outer driver's side and outer passenger's side adjustment tube locking pins must be
installed with pin heads to outside. If incorrectly installed, end of pins will protrude. Failure
to comply may result in damage to equipment.
To achieve desired spreading pattern, each gate opening can be adjusted individually.
Install locking pin (Figure 7, Item 2) in desired hole in adjustment tube (Figure 7, Item 1). The lower the pin
placement, the larger the gate opening.
When controlled spreading is completed, after gates have been closed and dump body is down, return
locking pins (Figure 7, Item 2) to top hole in adjustment tubes (Figure 7, Item 1) to lock gates closed.