TM 10-3930-659-20 17-36.    HYDRAULIC RESERVOIR REPLACEMENT (Con't). 11. Attach    suitable    lifting    device    to    hydraulic reservoir (1). WARNING Use extreme caution when handling heavy parts.  Lifting device Is required  when  parts  weigh  over  50  lb  (23  kg)  for  a  single  person lift, over 100 lb (45 kg) for a two person lift, and over 150 lb (68 kg) for a three or more person lift.  Keep clear of heavy parts supported only  by  lifting  device.    Failure  to  follow  this  warning  may  cause serious Injury or death to personnel. 12. Remove four screws (9), washers (10), and hydraulic reservoir (1) from forklift truck. 13. Remove lifting device from hydraulic reservoir (1). b. INSTALLATION WARNING Use extreme caution when handling heavy parts.  Lifting device is required  when  parts  weigh  over  50  lb  (23  kg)  for  a  single  person lift, over 100 lb (45 kg) for a two person lift, and over 150 lb (68 kg) for a three or more person lift.  Keep clear of heavy parts supported only  by  lifting  device.    Failure  to  follow  this  warning  may  cause serious Injury or death to personnel. 1. Attach suitable lifting device to hydraulic reservoir (1) and position hydraulic reservoir on forklift truck. 2. Install four washers (10) and screws (9) on hydraulic reservoir (1). 3. Remove lifting device from hydraulic reservoir (1). TA707689 17-111