Raymond 8210 - No Lift or Slow Lift, Lift Motor Does Run; No Lower, Lift and Travel OK

Model 8210/8250 Maintenance Manual Section 5. Troubleshooting
Symptom Tables: Lift/Lower System
Publication:1146945/001, Revised: 25 Sep 2018 5-19
No Lift or Slow Lift, Lift Motor
Does Run
No Lower, Lift and Travel OK
Possible Cause Action
Battery problems Lead acid battery: Replace the battery with a fully-charged battery.
Lithium-ion battery: Check charge status LEDs for charge level.
Mechanical binding in the lift
mechanism
Repair the lift mechanism.
Low hydraulic pressure or relief valve
setting
Check the hydraulic pressure setting and adjust if necessary. See
“Hydraulic Pump Pressure Relief Valve Adjustment” on page 7-103.
Relief valve contaminated or bad.
(Unable to get the correct hydraulic
pressure)
With the main ON/OFF switch OFF and the battery disconnected,
remove the pressure relief valve. Check for damage or
contamination. Replace the valve or flush the system and replace
the hydraulic fluid. See “Hydraulic Fluid” on page 7-95.
Bad lift pump motor or brushes Check the lift pump motor brushes. If OK, replace the pump motor.
Contamination found in the pump Flush the system and replace the hydraulic fluid.
Bad pump If the lift motor is OK, remove the motor from the pump and rotate
the pump by hand. Replace the pump if not OK.
Possible Cause Action
Bad lower solenoid valve... With the main ON/OFF switch ON, cycle the lower switch. Does
the lower solenoid valve energize? If YES, disconnect the battery,
then slowly loosen, but DO NOT REMOVE, the hydraulic line at the
hydraulic pump assembly. Permit the forks to slowly lower. Have
rags and a drain pan ready to catch the fluid.
... if the forks do not lower, check for
mechanical binding in the lift cylinder
or the fork mechanism...
Replace the lift cylinder or repair the lift mechanism.
...if the forks lower, remove and
inspect the solenoid valve...
Inspect for free movement and for signs of contamination. Clean
the solenoid valve or flush the system, clean the filter, and replace
the hydraulic fluid. See “Hydraulic Fluid” on page 7-95.
If no contamination is found, repair or replace the solenoid valve or
the pump assembly.
...check for a bad VM With main ON/OFF switch ON, the PIN-key code entered, the green
ON ( | ) key on the keypad pressed, and the lower button
depressed, check for lower signal input at the CAN (see “Service
Display” on page 3-17). If no signal is detected, replace the VM.
NOTE: Check for mechanical problems in the handle head before
replacing the VM.
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