MEGA Corp. MMP4-2 - Manual (Page 23)

MMP 4-2
5 Nov 2011
SECTION 4
Basic Hydraulics System
4-8
Water Pump Hydraulic Drive Motor
1. Repair or replace as required.
Hydraulic Cylinders
1. Repair or replace as required.
Hydraulic Cylinder Speed Control Valve
1. If the hydraulic boom cylinders raise too
slowly or lower too fast, check the
adjustment as follows;
a. Loosen set screw on knob.
b. Fully seat the flow control on the
hydraulic control valve for the cylinder
with the travel speed that needs
adjustment.
c. Rotate adjustment knob CW to fully
seat needle.
d. Rotate knob 1 full turn CCW.
e. Raise boom, check speed to ensure
speed is desired, if speed is too fast turn
knob CW 1 index mark, if the speed is
too slow turn knob CCW 1 index mark
at a time until desired speed is achieved.
f. Tighten set screw.
Hydraulic Filter Assembly
1. Repair or replace as required.
Hydraulic Oil Cooler Assembly
1. If cooling fins are dirty or plugged with
debris, remove, replace or clean cooler as
required.
2. Tighten or replace leaking or damage
adapter fittings as required.
3. Replace radiator guard if damage is present.
Hydraulic Hoses
1. Remove and replace damaged hose
assembly if damage to outer covering is
present or leaks are present.
2. Replace hose assembly if hose end is
unserviceable due to leaks or damage.
Set Screw
Index Marks