Alamo HYDRO 15 - Manual (Page 112)

HYDRO 15 (Service Manual) 09/06
© 2006 Alamo Industrial
Section 7 - 2
Speed Increaser Service & Repair
Attach Mount Plate, Speed Increase and Pump To Tractor:
Important!
To attach the Speed Increaser and pump to the tractor will require a mount kit designed for the type tractor that
unit is being connected to, There is a universal mount kit available that will need to be modified to fit a particular
tractor. These modifications will require the service technician to determine what modifications are needed.
Modifications to the universal kit will be at customers expense and design. Shown in this section are the general
instructions to mount the speed increaser to the tractor, some of the tractor specific mount kits may need
modification because of tractor accessories or options. When making any modifications to the speed increaser
mount kit the speed increaser must be kept in alignment with the PTO shaft of the tractor.
1. Secure tractor in a safe area and secure tractor in a safe parked position (see Tractor manufactures
instructions for safely parking the tractor). NEVER work on tractor with it running or any hydraulic components
in the unsupported lifted position.
2. Read through the entire instruction section before attempting to install speed increaser or mounts.
3. The speed increaser mount plate needs to be mounted so that the existing bolts holes are centered
around PTO Shaft. Remove any existing shield, support plates and center linkage arms or supports that are in
the way. Be sure and save all of these parts that are removed in case they are needed on the tractor in the
future.
4. The mount plate should be mounted directly to the tractor using existing bolt holes or studs on the rear of
the tractor. These bolts or studs should be at least 1/2" in diameter in order to give full support. Mount the
speed increaser to the mount plate with the bolts and spacer provided. Slip the assembly onto the PTO shaft.
Make certain the pump mount bracket of the speed changer is up and facing away from the tractor. IF using a
universal mount Kit, Use transfer punches screwed into the mounting holes in the tractor to locate center of
holes in mount plate. A specific mount kit the mount plate should have a set of holes that align with the holes
in the tractor.
This procedure will insure that the speed changer is centered around the PTO shaft. If drilling holes the
holes should be 1/32" larger than the bolt or stud size to maintain concentricity. DO NOT oversize holes more
than 1/32" . Over size holes will allow plate to slip off center to the degree it will not function properly and if ran
this way will most likely damage the PTO or other components.
5. The mount plate can be altered if need be to fit tractor. The use of a cutting torch to enlarge the center hole
or remove excess plate from the sides or the bottom can be done. BUT the technician must make the decision
when cutting as to the amount that is cut off, the technician must also make certain to leave enough material
on the mountplate to allow it to maintain strength to support the pump and speed increaser. It is recommended
that the technician contact Alamo Industrial if the amount of material being removed is in question or severe
enough to weaken mount plate.
6. If you can not mount the mount plate directly to the tractor use the spacer tubes (figure 1 - mount plate to
tractor spacers) . These tubes should already be to length if a specific tractor mount kit has been ordered, a
universal mount kit will require modification, which will be at a later time. Check the ends of the spacer tubes
to make certain the ends are cut square, if they are not don't use them replace them with tubes that are square
and to length. The spacer tubes must be square cut to keep the speed increaser perpendicular to the PTO
shaft. Use a lathe to cut or square the ends of the spacer if necessary. Tubes
MUST be of sufficient length
when mounted between tractor and mounting plate that the PTO shaft will have a minimum of 2 inches of
engagement into speed increaser. This can be checked by performing measurements of spacers, plate and
speed increaser splined sleeve then calculating the distance required.
7. The bolts to install the mount plate to the tractor must be grade 8, they must be long enough to allow at
least 1" thread engagement into tractor housing and make certain to use lockwashers on these bolts.. DO not
tighten these bolts at this time on snug them. When time to torque these bolts they are most likely 1/2"-NC
Gr8 bolts, Torque them to 100 to 110 ft.lbs. in increments use in an X pattern.