45
KMR 1250 B, LPG, D
Troubleshooting Information
Hydraulic unit w/ pressure relief valve
Adjusting pressure relief valve
Adjust pressure relief valve
Raise empty or full debris container to maximum
attainable height (two-hand operation). In this
position hold on the two buttons and measure
the current draw of the hydraulic unit (see “tech-
nical specification”). The current draw provides
a measure of the opening pressure set on the
pressure relief valve.
Hydraulic unit,
adjust pressure relief valve
ORIGINAL
–
Remove hydraulic unit but do not discon-
nect hydraulic hoses.
–
Holding valve insert (3) with wrench, unscrew
cap of pressure relief valve (1). The cap
conceals the valve adjusting screw.
–
Continue to hold valve insert (3) with wrench,
loosen lock nut (2) on valve adjusting screw.
–
Using a flat screwdriver, turn adjusting screw:
One-half CW turn increases current draw by
roughly 4 to 5 A (approx. 10 bar, approx. 145
psi).
–
Finish by tightening lock nut on adjusting
screw, again installing screw cap (1).
–
Install hydraulic unit: Perform function test,
and measure current draw.
Hydraulic unit,
adjust pressure relief valve
REVISED
–
Remove hydraulic unit but do not discon-
nect hydraulic hoses.
–
Remove screw cap (4). Cap conceals ad-
justing screw (5).
–
Using a stubby screwdriver, turn adjusting
screw:
One-half CW turn increases current draw by
roughly 4 to 5 A (approx. 10 bar, approx. 145
psi).
–
Finish by installing screw cap (4).
–
Install hydraulic unit: Perform function test,
and measure current draw.
Debris Container – No Full Ascent
Adjusting pressure relief valve
1
Cap
2
Lock nut
3
Valve insert
4
Screw cap
5
Adjusting screw
1
2
3
4
5
