40-500 Gas
July 27, 2018
1
Grout Pump Automatic & Manual Troubleshooting
40-500 Gas Wiring Diagram
Turn engine off and relieve hydraulic pressure and grout pressure before troubleshooting.
Note:
Typically there is a wiring diagram on the gray Geo-Loop electric box inside the cover. If not we
can e-mail you a copy to help troubleshoot your problem.
These are wires pertaining to operation of grout pump manual and auto switches.
First let’s talk through the circuit that typically will fix the problem, if the grout pump electric
troubleshooting guide will not fix the problem.
Starting with 12 volt DC from the grout pump fuse, red 14 gauge wire power supply to both
toggle switches.
(1)
Grout pump manual switch has jumper wire from center terminal over to
grout pump auto switch (either terminal).
Grout pump auto toggle switch (black wire, load side of switch) powers the common terminal
on the ratchet relay
(3)
located in the gray Geo-Loop electric box and two blue wires
(5)
going
to the micro switches on the grout cylinders.
(1)
Red 14 gauge wire
power supply from
grout fuse
(5)
From grout pump auto
single pole single throw
toggle switch load side
Note: old style micro
switches use a black wire
(see 8B diagram on page 2)
.
(3)
Ratchet Relay Com
Red wire – grout pump
15 amp fuse
Keyed power 10 amp fuse
Oil cooler fan 15 amp fuse
Power in from battery 30 amp fuse
