American-Lincoln Technology
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ATS 46/53 Troubleshooting Guide
CYLINDER CONTROL MANIFOLD VALVE (7-88-00069)
INTRODUCTION
The ATS 46/53 hydraulic cylinder control manifold valve contains the hydraulic control valves for the
side broom sweeping, scrub deck and squeegee lifting systems. The following description outlines the func-
tion of each cartridge valve in this manifold.
DESCRIPTION
The ATS 46/53 cylinder control manifold valve contains six (6) solenoid valves and one (1) spring
check valve. The solenoid valves are designated SV1, SV2, SV3, SV4, SV5, and SV6 and the spring check
valve is designated CV1.
SV1
This 2-position 3-way solenoid spool valve directs oil entering port “P” from the main manifold valve
“P1” port.. (P/N 7-12-02005)
When SV1 is not energized, pressurized oil is directed from port “P” to SV3, SV4, SV5, and CV1 and
port “A” is blocked. Oil does not flow through port “B” since it is the return from the side broom motor
powered by oil from port “A”. This is the side broom “OFF” position.
When SV1 is energized, pressurized oil is directed for port “P” to port “A”. Returning oil enters port
“B” and supplies SV3, SV4, SV5, and CV1. This is the side broom “ON” position.
SV2
This 2-position 2-way poppet solenoid valve controls return oil from port “C1” and serves as the “scrub
deck lock valve”. (P/N 7-12-02007)
When SV2 is not energized, oil may only flow from SV3 to port “C1” but no tin the opposite direction.
This traps oil in the rod end of the scrub deck cylinder and maintains the raised position of the scrub
deck.
When SV2 is energized, oil may flow both directions between SV3 and port “C1”. This allows oil
trapped in the rod end of the scrub deck cylinder to return to the tank through SV3 to port “T” which
lowers the scrub deck (SV3 must also be de-energized).
SV3
This 2-position 3-way solenoid spool valve directs oil SV1 or port “B”. (P/N 7-12-02005)
When SV3 is not energized, pressurized oil from SV1 (if the side broom if off) or port “B” (if the side
broom is on) is blocked while oil from SV2 (if SV2 is energized) is directed to port “T”. In this condi
tion, thescrub deck is in the up position (if SV2 is not energized) or in the lower/down position (regard
less of the condition of SV2).
When SV3 is energized, pressurized oil from SV1 or port “B” id directed through SV2 to port “C1” while
access to port “T” from SV3 is blocked. In this condition, the scrub deck is in the raise position
(regardless of the condition of SV2).
SV4
This 2-position, 4-way solenoid spool valve directs the oil leaving SV1 or port “B” and raises and
lowers the squeegee. (P/N 7-12-02006)
When SV4 is not energized, oil from SV1 (if the side broom is off) or port “B” (if the side broom is on)
is directed through port “C3” to the base end of the squeegee cylinder while oil is allowing to flow from
SV6 (if SV6 is energized) to port “T”/ This is the squeegee DOWN position.
When SV4 is energized, oil from SV1 or port “B” is directed through SV6 to port “C4” and the rod end
of the squeegee cylinder. In addition, oil is permitted to flow between port “C3” and port “T”. This is
the squeegee RAISE/UP position.
