Fayat Bomag CR 820 T Tier 4, Operating Instructions, Maintenance Instructions

Page: 42 / 130

4 Operator Controls
Operations Manual
CR 820 T
Date May 2020
Page 4-2
1. Hopper Wings - The hopper raise switch
is spring-loaded to automatically return to
the neutral position when released. It must
be held in the RAISE or LOWER position to
control the hopper wings.
2. Truck Hitch Option - The optional truck
hitch switch holds the truck in position at
the front of the paver so little or no material
is spilled after a truck is captured. The truck
driver does not have to ride the brakes to
stay firm against the paver.
The Truck Hitch switch is spring-loaded
to return to the neutral position when the
switch is released. To engage the truck,
hold the switch in ENGAGE until the truck
is in place, then let the switch return to
neutral to hydraulically lock the truck. To
unhitch, place the switch in the RELEASE
position.
The truck hook is equipped with an adjust-
able needle valve on the front bulkhead
which controls the speed that the truck
hook engages the trucks wheels. Rotate
the needle valve clockwise to reduce the
engage speed and counterclockwise to
engage the truck hook quicker.
3. Flow Gates - enables both right hand or
left hand flow gates to move up and open.
The gates regulate the depth of mix carried
to each auger. The spring-loaded switches
must be held at RAISE or LOWER until the
desired gate height is obtained. When re-
leased, the switch returns to neutral.
4.
Screed Lift Switch - Push up to RAISE the
screed, and push down to LOWER the
scree. Lowering mode is called float and
will drop until the screed hits the ground or
the the switch is posted to the up position.
After the screed is raised to the desired
height and the switch is released, it returns
to the hold position. The screed is hydrau-
lically locked at that height. While paving,
the switch must be set in the float position.
5.
Screed Extension Switches - this switch is
used to extend or retract the extensions. .
6. Frame Switch - Push the switch up to
RAISE and the rear of the paver will raise.
Push the switch down to LOWER and the
Controls
1 2 3 4 5 6 8 9 11
12
14
7
16 17 18
19
20
21
22
23
24
10
13
15
Figure 4.1
- Control Panel