Mechanical Adjustments; Brake Adjustment Procedures - Skyjack SJKB-40-D Operating Maintenance Instructions & Part List

MECHANICAL ADJUSTMENTS

BRAKE ADJUSTMENT PROCEDURES

Checking the adjustment of each brake on the rear axle requires the following procedure:
1. Chock the wheels to prevent the work platform from rolling when the brake is released. Remove the thumb
screws from the Rear Axle Cover and lift off to expose the rear axle.
2. Remove the Center Plug (17mm allen head) (Item #1) from each brake cover.
3. Starting with the left brake, insert the shaft of the Dial Indicator(Item #2, Skyjack part #707704) through the
hole in the brake cover and carefully tighten the gauge holder (clockwise) until no threads are exposed.
4. Rotate the dial on the Dial Indicator to "0".
5. Locate the Parking Brake Release Hand Pump (refer to Section 2, Page 5). Follow the procedure to release
the parking brakes.
6. Read the Dial Indicator setting. The proper setting range is 1.8mm (0.080") to 2.2mm (0.085"). If the setting
is within this range, pull out the Brake Override Valve Plunger to engage the brakes, then perform the same
adjusting check on the right brake. Remove the Dial Indicator and reinstall Center Plug.
NOTE: If setting on either brake is not within the specified range, proceed to step 7.
7. Remove the Dial Indicator. Pull out the Brake Override Valve Plunger to engage the brakes. With a M19
socket and wrench, adjust the Actuator Shaft (Item #3) by tightening (clockwise) the Actuator Shaft Nut (Item
#4) to reach a lower setting or loosening (counterclockwise) the Actuator Shaft Nut (Item #4) to reach a
higher setting.
8. Repeat steps 3, 4, 5 and 6.
9. Repeat step 6. If setting is still not within the specified range, repeat steps 7 and 8 until setting is within
specified range.
NOTE: The brake will automatically return to normal operation when a drive function is selected.
SECTION 5, Page 28
Figure 5-20. Cross Section of Brake Assembly
JUN. 1999
4
3
1
Ma40-521
Skyjack Part
2
No. 707704
SJKB-40-D, SJKB-40-D/F