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Hutchinson® Rock Monster® Wheel Installation Manual Revision F
10/24/2019
WHEEL/BEADLOCK ASSEMBLY INSTRUCTIONS (continued)
14-16 Lube tire/inner rim bead seat and insert
inner rim into tire.
17 Flip tire w/inner rim over and lube tire bead
seat. Prop the wheel up using 2x4’s
(optionally, use an inverted milk crate or
empty wire spool) so wheel is pushed as far
as possible into the tire
18 Clean wheel o-ring groove. Check o-ring for
debris.
19-20 Install o-ring into back side of outer* rim.
Starting at 6 o’clock, work around both
sides evenly until approximately at 2 o’clock
and 10 o’clock positions, then slide
remainder into place at 12 o’clock position.
Do not roll o-ring, or it may roll out of the
groove. Can also use knee to hold 6 o’clock
position in-place until fully seated.
21 Lube outer rim bead seat.
NOTE: Outer rim comes with pull through valve
installed. To install insert stem from
backside, thread-on valve puller, and seat
valve in rim. Take care not to scratch face
of rim with valve puller (use cardboard to
pry against). Ensure valve rib is properly
seated prior to wheel assembly. *o-ring
groove is in inner rim on WA-0398 wheel.
22-23 With outer rim face up, align spoke on outer
rim with long stud (or locate long stud away
from valve), and insert into tire.
24 Assemble nut onto each of the protruding
long studs (start threads by hand).
25-26 Drive outer rim down evenly until all nuts
bottom out, making sure the o-ring doesn’t
fall out or get pinched, until each of the
remaining assembly studs is
completely exposed.
27 NOTE: 2 PC nut hex must be aligned on
both top and washer portion.
28 Assemble remaining nuts and torque all
using a star pattern to 100 +/-5 FT-LB [135
+/-7 N-m]. Loosen and re-torque if hex is
misaligned.
29 Inflate tire-wheel assembly (not shown).
See tire sidewall for maximum pressure
permitted.
• 17” wheels are rated to 60 PSI
[4.1 BAR] maximum
• 16” wheel (WA-0604) is rated to 80 PSI
[5.5 BAR] maximum
• 15” wheel (WA-0398) is rated to 35 PSI
[2.4 BAR] maximum
If higher pressure is required, contact Hutchinson.
WARNING: Hutchinson® recommends always inflating tires in an OSHA-approved safety cage.