Wet Brakes - Yale ERP15-20VT Service Manual

Maintenance and Repair
5. Install brake and traction motor on transaxle. Install
transaxle on lift truck. See section Install Transaxle
to Frame.
CAUTION
Make certain to use the proper magnetic plug for the
drain plug. The drain plug is not interchangeable
with the fill and check plugs.
6. Fill transaxle with fluid to the proper level:
a. Install drain plug with new sealing ring and
tighten to 22 N•m (192 lbf in).
NOTE: Each transaxle requires approximately 0.60 liter
(0.63 qt) of transmission fluid.
b. Fill transaxle until fluid begins to emerge from
check hole.
c. Install check and fill plugs with new sealing
rings and tighten to 22 N•m (192 lbf in).

WET BRAKES

The wet brake discs can be replaced after the warranty
period. To replace the brake discs:
CAUTION
DO NOT remove the cover from the transaxle hous-
ing during the warranty period. Removing the cover
from the housing will void the transaxle warranty.
The transaxle warranty period may vary from truck
hours or other warranties. Contact Yale Company
Contact Management if you have questions about
warranty status.
CAUTION
The transaxle is heavy and can be difficult to stabi-
lize when positioned with the studs down. Securely
support the transaxle in a stable position during
these procedures.
1. Remove transaxle from lift truck. Remove parking
brake and traction motor from transaxle. See sec-
tion Remove Transaxle From Frame.
2. Drain fluid from transaxle.
3. Remove cover from transaxle. Refer to section Re-
moving the Cover.
16
CAUTION
Always replace the full set of inner and outer
splined brake discs.
NOTE: Make note of the orientation of the brake discs
during removal.
4. Remove 4 brake discs (outer spline) and 3 brake
discs (inner spline) from transaxle by hand. Re-
move pressure plate from transaxle by hand. See
Figure 21.
NOTE: New pressure plate thicknesses are 4.8 mm
(0.19 in.), 5.3 mm (0.20 in.), and 5.8 mm (0.23 in.).
5. Measure thickness of old pressure plate. Select
new pressure plate with next highest thickness.
6. Install the pressure plate into transaxle housing by
hand.
7. Soak new brake discs in clean transaxle fluid before
installing.
8. Install a brake disc (external spline) against pres-
sure plate in transaxle.
CAUTION
Brake discs with internal splines should be in-
stalled in the transaxle housing so that the rounded
off side of teeth point upward.
9. Install a brake disc (internal spline) against brake
disc (external spline) with rounded off side of teeth
pointing upward.
10. Install remainder of brake discs alternating between
internal and external splined discs. The disc pack
should have a total of 1 pressure plate, 4 brake
discs (external spline) and 3 brake discs (internal
spline).
11. Align splines of internal discs using a screwdriver.
12. Install cover to transaxle. Refer to section Installing
the Cover.
13. Install traction motor and brake on transaxle. Install
transaxle on lift truck. See section Install Transaxle
to Frame.
1300 YRM 1330