D4OPTRS 30 2019
(A)
ELECTRIC LOCK VALVE
DWG-M01170
The Electric Lock Valve is used to hold the gutter
broom up when the sweeper is in transit or
the broom is not in use. A 12V DC current to the
lock valve coil is required to lower the broom.
No maintenance is required for the lock valve
assembly. However, adequate voltage and
ground is necessary for proper function. Normal
coil resistance when cold is 7.0 OHMS.
(B)
CARTRIDGE SEQUENCE VALVE
DWG-M01327
(505172)
The cartridge valve is found screwed into the
top of the aluminum sequence valve block. An
adjustment screw is found on the top of the
valve and is adjusted using a 3/16 Allen wrench.
This setting puts just enough hydraulic pressure
to base end of cylinder so that broom will go
down and stay extended but also lets broom
retract if it hits the curb or any other solid object.
If adjustment screw is adjusted too far into the
valve head, too much hydraulic pressure at the
base end of gutter broom cylinder will occur and
broom could be damaged if run into the curb.
Always tighten jam nut and reinstall cap after
adjusting.
Seal Kit Part No. 5011237
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