ZT-5400 Powertrain
15
reQuIred TOOls
miscellaneous
sockets
2 Screw Drivers
33 mm socket
3/8” Drive Ratchet
1/2” socket
Rubber Mallet
3/4” socket
Large External Retaining Ring Pliers
7/8” socket
Large Internal Retaining Ring Pliers
13/16” socket
Small External Retaining Ring Pliers
15/16” socket
Small Internal Retaining Ring Pliers
1 1/8” socket
AN-04 (1/8 Allen)
1 7/16” socket
AN-06 (3/16 Allen)
AN-08 (1/4 Allen)
AN-10 (5/16 Allen)
AN-12 (3/8 Allen)
T-25 Torx
T-40 Torx
3 Jaw Puller
reQuIred TOrQue Values
Item
description
Torque
Operation
6
HFHCS
230-290 in-lbs [25 .9-32 .7 Nm]
Housing screw
21
Bolt, Hex Flange
525-700 in-lbs [59 .3-79 .1 Nm]
Center Section
22
Bolt, Hex Flange
525-700 in-lbs [59 .3-79 .1 Nm]
Center Section
26
Seat Check Nut
280-400 in-lbs [31 .6-45 .2 Nm]
Center Section
30
Check Spring Retainer
200-250 in-lbs [ 22 .59-28 .24 Nm]
Center Section
36
Plug
200-250 in-lbs [ 22 .59-28 .24 Nm]
Center Section
40
Bolt, Self Tapping
20-30 in-lbs [ 2 .25-3 .38 Nm]
Center Section Magnet
52
Stud
50-120 in-lbs [5 .7-13 .5 Nm]
RTN
56
TWHCS
230-310 in-lbs [25 .9-30 .0 Nm]
RTN
57
Nut
85-120 in-lbs [9 .6-13 .5 Nm]
RTN
61
SHCS
175-200 in-lbs [19 .7-22 .5 Nm]
RTN
67
Screw
175-200 in-lbs [19 .7-22 .5 Nm]
RTN
113
Castle Nut*
275-350 ft-lbs* [ 372 .9-474 .5 Nm]
Hub
126
Nut
660-800 in-lbs [74 .5-90 .3 Nm]
Brake Shaft
145
Screw
80-120 in-lbs [9 .0-13 .5 Nm]
Gerotor Cover
152
Plug, Oil Filter Cover
480-540 in-lbs [54 .23-61 .01 Nm]
Oil Filter
167
Screw
175-200 in-lbs [19 .7-22 .5 Nm]
Two Speed
170
Plug Metal
200-280 in-lbs [22 .5-31 .6 Nm]
Exspansion Tank/Fill Port
171/173 Plug
32-42 in-lbs [3 .6-4 .7 Nm]
Oil Fill Vent Port
172
Plug, Metal
200-280 in-lbs [22 .5-31 .6 Nm]
Exspansion Tank Port
174
Plug Metal
180-240 in-lbs [20 .33-27 .11 Nm]
External Cooler Port Plug
183
Nut, HEX, 1/2-20 W/ PATCH
360-520 in-lbs [40 .6- 58 .7Nm]
Fan
*
If a 275 ft-lbs torque wrench is not available please use the alternative torque procedure outlined on page 36.
TOOls
As a general rule, use the low end of the torque spec on fasteners when reassembling the unit.
TOrQues
www.mymowerparts.com
Hydro Gear Parts or New Units Call 606-678-9623 or 606-561-4983