How to upgrade the hydraulic pump on a Harbor Freight towable backhoe trencher. Went from stock 2.7cc pump to a 4.1cc Salami pump.
====== Pump: Salami Hydraulic Gear Pump ======
Model #: 1.6PB4.1D-R080S0
Alternative model #: 1.5PE4.1D-R80S0
(The 1.6 was superseded by 1.5. Both have identical mounts and port locations, but there are some cosmetic differences.)
Purchased from:
hydraulic-supp...
====== Outlet hose adapter: 6MB-6FP ======
Purchased from:
biedlers-hydra...
Inlet hose adapter: 8MB-8FP
Purchased from:
biedlers-hydra...
Checkout my backhoe playlist for more videos on modifying and using this machine:
• Harbor Freight Backhoe...
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