Power Connections For Bi-Rotational Motor Pump; Purging For Bi Rotational Units - Equalizer Systems Auto-Level Installation Manual

Full Purge:
Next, cycle the system by lowering each jack to the ground manually, using the
DOWN buttons on the keypad. Do not allow the jack to lift the coach. After all jacks are in contact
with the ground, press All Retract to retract the jacks. Next run the jacks in pairs (front pair & rear
pair) to full extension. Monitor the fluid level and all fittings for leakage. Retract the jacks by
pressing All Retract. Recheck the reservoir and fill to full. Note the fluid level in the reservoir is at
maximum when all jacks are fully retracted and minimum when jacks are fully extended. This full
extension and retraction in pairs should be repeated 3-4 times.
 Allowing the air to dissipate through the reservoir and maintaining the reservoir fluid
level will get things working faster.

Power connections for Bi-Rotational Motor Pump

Pump #s
# 2390, 2532, 2542, 3043 on the pump data label
Step 12 (Pump +12v):
Attach a # 4 gauge wire (# 2 gauge if the run is over 12ft.) between the
positive +12v terminal on the battery and the common posts on the motor solenoid. This supply may
This +12v supply must be a dedicated and
be fused at the source with a 120-amp circuit breaker.
isolated circuit (not shared with other devices), and must be constant, non-switched +12v.
Pump # 3043 Attach a #4 gauge wire from the positive + 12V terminal on the battery to the +
terminal on the motor contactor (solenoid). This terminal has a + beside it on the contactor, also there
will be a yellow fused wire on this terminal.
Step 13 (Pump -12v):
Attach a # 4 gauge wire (# 2 gauge if the run is over 12ft.) between the
negative -12v terminal on the battery and the ground stud on the pump. This is the preferred method
of grounding. If grounding the pump to the chassis, the connection must be sound, free of paint and
not susceptible to corrosion. The battery must be connected to the frame with #4 gauge or larger
It is not acceptable to allow the pump mounting bolts to be the sole grounding
wire.
connection.

Purging For Bi Rotational Units

Pump #s 2390, 2532, 2542, 3043
This procedure must be performed with the initial installation & running of hydraulic system, and
following installation of the pump assembly and jack(s). This procedure applies only to MH-4
systems that are equipped with the Bi-Rotational pump. All electrical and hose connections must be
completed before the purging process. You Must Follow this Procedure Strictly. Any Deviation
from the Process will cause the purging process to become difficult and time consuming.
Fill the reservoir with ATF Dexron.
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