Invacare RHL450-1 User Manual page 23

Lowering the Hydraulic Lift
The control handle MUST be in the open position (control valve
positioned away from pump handle) to lower the boom and the patient.
The rate of descent can be controlled by varying the amount that the
control valve is opened.
 A safety gate is part of the hydraulic system that controls
the maximum descent of the boom regardless of how far
the control valve is opened.
1. Perform one of the following:
• WITH the patient in a sling - Gently open the control valve.
See Detail "A".
• WITHOUT the patient in a sling - Open the control valve and
pull down on the boom. See Detail "B".
Part No. 1078987
Pump
Handle
Pump
Handle
Closed
Control Valve
23
6 OPERATION
Closed
Control Valve
Open
DETAIL "A" -
WITH PATIENT
IN THE SLING
Open
DETAIL "B" -
WITHOUT
PATIENT IN
THE SLING
Manual/Electric Portable Patient Lift