Poor cutting

Reel to bed knife adjustment.

Dull reel.

Grass too tall.

Ground speed too high or PTO too slow.

Reels not floating.

Cutting unit not following ground contour.

Corrugated or ribbed appearance to turf (Marcelling)

Ground speed too high or PTO too slow.

Too few reel blades

Grass buildup on rear rollers

Install scrapers

Reels not running or run at reduced RPM.

Mercury Switches not functioning properly.

Solenoid Valves not functioning properly

Adjustable reel motor hydraulic valves turned clockwise (inward) to backlapping position (if backlap valve installed)

Reels too tight

Reel motor hoses on wrong connections (no backlap valve)

Pump output (low)

Electrical to tractor not connected

Broken or shorted wire

Low oil level in hydraulic reservoir

Reel speed knob not reset to proper speed after backlapping.

Some reels or all reels running backwards

Hydraulic couplers connected for backlapping or optional backlap valve not repositioned for forward reel direction.

Reels do not float properly

Check levers for detent position. Either SCV operation or electro-hydraulic.

Mower reels squeal

Operate reels in grass (Grass Juice Lubricates).

Reel to bed knife adjusted too tight.

PTO Hookup makes an excessive noise in turns.

Check for proper set up.

PTO driveline comes apart or bottoms out

Drawbar and hitch adjustment incorrect.

Motor seal failure on an of the cutting units.

Restricted oil flow through couplers.

Clean and tighten locking device.

Plugged drain line.

Left and right cutting units will not raise or lower

Motor seal failure on any cutting unit

Oil leaks from cutterhead gear case

Blown motor seal.

Crushed rubber hoses, or kinked elbows restricting oil flow.

Mesh of cutting unit motor gear to reel gear. Be sure not putting side loads on motor shaft.

Drive gear and driven gear on each cutting unit may wear prematurely.

Drive gear may not be centered on shaft or driven gear.

Driven gear and drive gear are meshing too tight.

Reel to bed knife clearance.

Gear on cutting unit off center.

Slow Hydraulic Lift Function

Low oil level in hydraulic reservoir

Suction oil filter plugged

Wrong oil

Worn pump

Low pressure, worn or stuck Electro-hydraulic relief valve

Restriction in hose or restrictor plugged

Noisy pumps

Low oil level

Wrong oil

Plugged oil filter return

Internal pump or motor wear

Suction filter plugged

Air leaks in suction line

Oil Overheats

Low oil level in reservoir

Oil filter plugged

High-pressure internal leak

Dirty oil

Wrong oil

High ambient temperatures with heavy loads (install oil cooler)

Foaming Oil

Low oil level

Wrong oil

Air leaks in suction line

No Pump Output

Power Take Off (PTO) not engaged

Insufficient hydraulic oil in oil reservoir

Broken pump drive

Broken pump shaft

Broken pump spline

Gearbox failure

Pump Noise

Air drawn in the pump (cavitation)

Clogged suction strainer

High oil viscosity due to cold weather.

Pump drive coupling in gearbox (misaligned, worn or broken.

Pump casing is loosened and distorted.

Other Noise

Operating over relief setting electrohydraulic lift

Hydraulic Lift Cannot be Lifted or Lowered (Standard Machine)

No output from pump

Low oil in hydraulic reservoir

Drive coupling is worn or broken

SCV's not connected to the machine

SCV's on tractor doesn't work.

Optional Hydraulic Lift Won't lift or Lift Speed Slow

Contact surfaces in relief valve are broken and worn.

Pressure control of relief valve is incorrect

Wear of gear case of hydraulic pump causes clearance to be excessive.

Proportional flow divider/spool is stuck (6 & 7) only

Cavitation in low temperature

Intake strainer is clogged

Cylinder or cylinder case are damaged

Electrical connections not made to tractor.

Solenoid valves on electro-hydraulic or over center valve stuck or not being activated.

Broken wire or bad connection (loose ground)

Lift Arm Drops Fast

Restrictor plates not installed or seated properly.

Cylinder case has flaws and other damages

Entire Electrical System Does Not Work

Water on electrical components. Use air to clean machine in sensitive areas

Loose or corroded connections

Loose ground wires

Connection not made between tractor and mower.

Broken wires.