9.8.(d): If additional fluid is necessary for any reason, use only the fluid identified on the nameplate to ensure compatibility with the installed seals and the specified operating temperature range. DO NOT OVER-FILL.

9.8.(e): Table 3 specifies Recommended Hydraulic Fluid types for a range of ambient temperatures.

Table 3: Recommended Hydraulic Fluids

 

 

Ambient Temperature

 

Hydraulic

 

 

 

 

 

 

 

 

 

 

Fluid

 

Lower Limit

Upper Limit

Lower Limit

Upper Limit

 

 

0F

0F

0C

0C

 

 

-13

+122

-25

+50

C-10 (1)

 

 

 

 

 

 

 

+32

+176

0

+80

C-46 (1)

 

 

 

 

 

 

 

-31

+104

-35

+40

Aero 41 (2)

 

 

 

 

 

 

 

-76

+140

-60

+60

M-20 (3)

 

 

 

 

 

 

(1)

C-10 and C-46 are Shell Tellus® products.

 

 

 

(2)

Aero 41 is a Shell® product.

 

 

 

(3)

M-20 is a Bayer® Baysilone product.

 

 

 

All hydraulic fluids are obtainable from Magnetek.

9.9: Brake Adjustments

9.9.(a): Wear will be more rapid when the linings are new, while the high spots are wearing down as the bedding process takes place. Adjustment will be required soon after the brake has been put into service.

9.9.(b): Brake release lever travel increases with lining wear. This decreases the reserve stroke. Carry out periodic maintenance to reset the reserve stroke as described in Chapter 6 “Actuator Stroke Adjustment”.

9.9.(c): Brake torque decreases as the brake lever drops. On critical applications, such as hoists, brake adjustment should be performed frequently enough so that the torque loss does not result in loss of load control. In no event should the lever be allowed to “bottom out”. This results in total loss of braking torque and could result in death or injury to personnel.

Following any adjustment, maintenance or repair on the brake, fully test its operation as described under topic “Operational Test”.

8/17/2006

Page 31 of 33

MST/E Electric Shoe Brakes Manual

 

 

560022-R6