Bayne Thinline BTL 208-12, Operation And Parts Manual

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Document Number: 1999-0212 Issue Date: 06/06/07 Revision No: 005 Page: 10 of 38
14. Setting the hand valve relief valve(s):
a) Hold the handle on the hand valve ( 2 ) ( figure I-4 ) ( with pressure gauge
installed at the “IN” port ) in the “retract” position to show pressure on the
gauge.
b)
Turn the pressure relief adjusting screw on the hand valve relief valve ( 5 )
counter-clockwise until the pressure reading on the gauge is either 200 psi
less than truck system pressure or 1800 psi, which ever is the lowest.
c)
Release the handle on the hand valve.
d)
Turn the truck’s engine off and release all hydraulic pressure from the
system.
e)
Remove the hydraulic pressure gauge from the hydraulic line connected to
the “IN” port of the hand valve.
f) For dual lifters, install the hydraulic pressure gauge in the “IN” port of the
other hand valve as shown in figure I-5, start the truck’s engine, engage the
hydraulic system, and repeat step 14.
15. Reinstall the cap nut(s) ( 8 ) ( figure I-4 ) on the hand valve relief valve(s) ( 5 ) to
secure the correct pressure setting(s).
16.
Tighten the lock nut ( 7 ) ( figure I-4 ) on the full system relief valve ( 4 ) to secure
the correct pressure setting.
17.
Tighten the lock nut ( 6 ) ( figure I-4 ) on the lifter circuit relief valve ( 3 ) to secure
the correct pressure setting.
18.
The hydraulic circuit pressures are now set for optimum performance.
VI. Final operation and mounting:
1. Start the truck’s engine and engage the hydraulic system.
2.
Place a cart on each lifter and operate to make sure there are no clearance problems
and that the lifter engages the cart properly. Make any adjustments to the mounting
position of the lifter(s) to ensure correct operation.
3.
After locating an acceptable mounting position, complete the welding of the lifter(s)
to the truck.