Summers Rockpicker - Manual (Page 12)

Inadequate reel Tractor hydraulic Check oil level oil filter & tractor Page
NO. PROBLEM CAUSE CORRECTION PAGE
1. Reel runs too fast
or too slow.
Flow control valve
improperly adjusted.
Adjust flow control valve on rockpicker
for desired reel speed. Flow control
valve adjusts speed of reel only on the
picking direction of rotation - not in
reverse.
Page 2-3
Adjustments for
picking.
NOTE: Reel speed
should not exceed
35 RPM.
2. Rake raises slowly
while reel is turning.
Insufficient oil flow
to rake lift cylinders.
Inherent problem with certain model
tractors - see Hydraulic Requirements
on Page 2.1. On tractors with adjustable
flow controls for each hydraulic circuit
(IE: JD Tortoise-Hare control), set
rockpicker flow control to a maximum
setting and adjust reel speed with tractor
flow control. This should divert extra oil
to hydraulic circuit used for lifting rake.
Page 2-1
Installation of optional electric solenoid
lift solves problem by using oil from
hydraulic motor to power rake lift
cylinders. See installation & operation
instructions on page 2-2 for more details.
Page 2-2
Page 3-6
3. 3. Inadequate reel
torque.
Tractor hydraulic
system pressure or
rockpicker cushion
valve relief pressure
set too low.
Check oil level, oil filter & tractor ,
hydraulic pressure. See Adjusting
cushion Valve Relief Pressure
on page 2-3.
Page 2-3 2-3
4. Leaking seal on
planetary gear box.
Almost always
caused by leaking
shaft seal on hyd.
motor. Oil from
tractor hyd. system
enters gear box
through motor and
this pressure forces
seal out.
Remove hydraulic motor from planetary
gear box and replace shaft seal (Order
Summers PN 8R7407 for complete kit).
Pag 3-4
5. Reel moves
sideways.
Severe side loads. Center reel and retighten set screws
and retaining collar on reel. If problem
continues install shaft collar. Order
Summers PN 8R6830.
Page 3-3
SECTION 2 - OPERATION AND MAINTENANCE
2-4