Baumalight TRL620D - Adjust Hydraulic Relief Valve

4.12 Adjust Hydraulic Relief Valve
If engine stalls when simultaneously pushing into
a pile and raising boom, relief valve may need to
be adjusted.
1. Loosen knobs (A) and pivot hydraulic oil cooler
upward. Engage pin to hold cooler in open
position.
A
A
2. Remove access cover on rear of engine
compartment and loosen jam nut (B) on boom
valve with 17 mm wrench.
B
3. Insert 5 mm hex wrench down through access
hole (C) on control panel and into hex screw
on boom valve.
C
4. Hold locknut (B) with wrench and rotate hex
adjustment screw 1/4 turn counter clockwise.
Tighten locknut (B), install cover, close oil
cooler, start engine and test operation.
5. Repeat step 4 again until engine does not stall
when pushing into a pile and raising boom.
6. For using other attachments, you will need
to set relief back to 3000 psi for maximum
performance for those attachments.
37