Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Specifications

Steering Pump Free flow rate
@ 74-80C (165-175F) and engine set at idle
1.79-2.19 gpm
Back pressure
@ 74-80C (165-175F) and engine set at idle (with gate valve open)
60 psi
Minimum flow rate
@ 74-80C (165-175F) and 5102 kPa (740 psi)
1.15 gpm
Relief pressure 1300-1480 psi