Specifications

© 2002 Alamo Group Inc.
Parts Section -147
Triumph Sickle Bar (Archive Book) 10/02
SERVICE INSTRUCTIONS
NOTE! Dirty oil can destroy the hydraulic system. Dirt scores valve spools, and cylinder plungers
and gouges metal from pump and motor thrust plates, gears, and housings. If mower
performance is lagging or system is running hotter, very likely the cause is dirty oil.
CLEANING HYDRAULIC RESERVOIR:
1. After first 20 hours of operation, drain and clean reservoir in the following manner.
A. Drain oil and remove any metal filings which may have accumulated on the magnetic
drain plug in the reservoir.
B. Remove top plate from reservoir containing filler neck and breather.
C. Reach through hand hole and unscrew filter element.
D. Wash filter in clean kerosene or diesel fuel and blow dry.
E. Carefully wipe out inside of tank with clean lint-free material.
F. Replace filter element and magnetic drain plug and tighten.
G. Replace hand hole cover but not the breather.
H. Refill with Universal Tractor Hydraulic Oil to midpoint of sight gauge. NOTE! DO NOT
START THE TRACTOR ENGINE WITH AN EMPTY RESERVOIR.
I. Replace breather.
J. Make sure the system is free from any leaks. It can be very dangerous looking for leaks
by hand without some type of protection like very heavy gloves and a piece of cardboard
wrapped around the hose. Move the cardboard up and down the hose and fittings to
find leaks - Not your hand.
WARNING! REMOVE HYDRAULIC PRESSURE prior to doing any maintenance.Place the
cutterheads on the ground, OR SECURELY BLOCKED UP, disengage the PTO, and
turn off the engine. Push and pull the control lever in and out several times.
2. Repeat cleaning after every 250 hours of operation or each mowing season, which-
ever occurs first.
3. For mowers operating from the tractor's internal hydraulic system or tractor-loader
hydraulic system, refer to the tractor manufacturer's manual for cleaning procedure and oil
specifications.
WARNING! DO NOT ATTEMPT ANY SERVICING OR ADJUSTMENTS WHILE THE MOWER
IS RUNNING. DISENGAGE THE PTO AND SHUT OFF THE TRACTOR ENGINE.
CUTTERBAR ADJUSTMENTS:
Cutting Height:
Triumph mowers are designed to cut above and below ground level with the cutterbar in the
float position. If a cut is required when the inner and outer shoe soles are not in contact with
the ground the cutterbar can be raised with the curb lift to the desired height. However, if
continued high cuts are required, it is suggested that the inner and outer shoe soles be
extended by welding on spacers and spring steel skids to the height desired.
Pitch: The entire cutterbar pitch angle can be quickly adjusted by loosening the single adjustment
bolt and nut and tilting the bar up or down as desired. See Fig. #10 & #11. Retighten after
adjustment.
Lead: The lead angle of the cutterbar on 2500 and 8500 models is preset at the factory at 3/16"
per foot and is automatically maintained by the release spring. The lead may be changed,
if desired. To reduce the lead, build up boss "B" with weld See Figure 12. To increase the
lead, grind down the height of the boss. The lead of the 3500 utility cutterbar can be
adjusted by adding or removing shims from the cutterbar support See Figure 12. Extra
shims will be required.