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Reelmaster 3550−DPage 5 − 42Electrical System
C. Solenoid coil resistance should be measured
with solenoid at approximately 68°F (20°C). Resist-
ance may be slightly different than listed at different
temperatures. Typically, a failed solenoid coil will ei-
ther be shorted (very low or no resistance) or open
(infinite resistance). Use a multimeter (ohms setting)
and measure resistance between the two (2) con-
nector terminals on the solenoid valve coil. The re-
sistance for the solenoid coils is identified below:
Solenoid Valve Coil
Resistance
PRV (mow) 7.1 ohms
S1, S2, S3 and S4 (lift) 8.8 ohms
NOTE: To assist in troubleshooting, identical sole-
noid valve coils can be exchanged. If the problem fol-
lows the exchanged coil, an electrical problem likely
exists with the coil. If the problem remains un-
changed, something other than the solenoid coil is
the problem source (e.g. switch, circuit wiring, hy-
draulic problem). The lift manifold S1, S2, S3 and S4
coils are identical.
D. If solenoid coil resistance is incorrect, replace so-
lenoid (see the Service and Repairs section of Chap-
ter 4 − Hydraulic System in this manual).
5. After coil testing is completed, connect wire harness
connector to the solenoid valve coil(s).