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L4000G4
www.NewLeader.com
(800) 363-1771
307074-AA-I
Hydraulic Hose Installation
Do not overtighten a threaded connection, the fitting or housing into which the fitting
is placed could be distorted and an unstoppable leak could occur� Failure to follow this
requirement may result in injury or machine damage�
Do not use one manufacturer’s hose with another manufacturer’s fittings! Such will void
any warranty and may cause premature burst or leak of hydraulic fluids! Failure to comply
with this requirement could result in death or serious injury�
Determine pressure port of pump� Install pressure hose into this port as shown in Figure 6� Connect
suction hose to opposite port and to tank outlet on hydraulic tank� Use plastic tie straps as necessary to
Hydraulic Pump Installation
HECO pumps are direct mount� See “Pump Hydraulics” in the spreader parts manual for assembly
instructions�
Figure 6 - Hydraulic Pump Installation
Use thread sealer on all NPT fittings. When using thread sealer, do not put it on the first three threads
of the fitting. Too much on the fitting or on the first three threads will force it into the oil stream where it
could damage the system�
Assemble system as shown in “Hydraulics” parts list in the parts manual� Place hose clamps as needed
to keep hoses away from hot or moving parts� Do not let hoses hang so low as to be snagged� Do not
stretch hoses tight�
Hydraulic hoses are as follows:
• Pressure Line: High pressure hose supplied by dealer� Hose must have minimum pressure rating
that corresponds to the maximum pressure setting of the hydraulic system� Refer to “Hydraulic
• Suction Line: Suction hose supplied by dealer� Hose must meet or exceed SAE 100R4 requirements�
Installation
